New breakthrough in China’s independent research and development of aero-engine spindle bearings

On October 24, 2022, the anti-fatigue life test of key components of aero-engines carried out by the Beijing Institute of Aeronautical Materials exceeded 50,000 hours, marking a new breakthrough in China’s high-end equipment manufacturing technology.

The key component of this fatigue test is the aero-engine main shaft bearing independently developed by China. The fatigue life of the equivalent accelerated test on the tester did not fail for 50,000 hours, setting a new record in China.

Tang, senior engineer of Beijing Institute of Aeronautical Materials: The aircraft has to fly for thousands of hours. If the bearing fails, the engine cannot be used. It is the center of the engine. The test simulates the working conditions of the aero-engine. So far, the accelerated equivalent life has not failed for 50,000 hours, and the test is still in progress.

According to reports, during the operation and service of high-end equipment such as aircraft and high-speed railways, key components will experience fatigue, cracks and fractures, resulting in product failure, which is a major problem in the world’s engineering field.

Through technical research, Chinese researchers have independently developed a number of key technologies for anti-fatigue manufacturing, established an anti-fatigue manufacturing technology system, solved the problem of fatigue failure of key components, and laid a more solid foundation for the comprehensive autonomy of China’s high-end equipment.

Zhao (researcher of Beijing Institute of Aeronautical Materials) Said: Our anti-fatigue manufacturing technology can do almost all key components. The life and reliability of equipment are reflected by key components. With key components, high-end equipment can be made. Therefore, the overall improvement of China’s manufacturing technology has reached three limits: limit life, limit reliability, and limit weight reduction, which means it is at the international leading level.

 

Fatigue, wear and corrosion are the three major problems in mechanical engineering manufacturing recognized by the world.

The so-called fatigue refers to the process in which the material gradually produces local permanent cumulative damage in one or several places under the action of cyclic stress and strain, and then cracks or suddenly breaks completely after a certain number of cycles. In layman’s terms, it is like an iron wire. After repeated bending, it will become hot until it breaks, which is caused by fatigue.

The development of the “fatigue” problem can be traced back to 1830. Although after nearly two hundred years of research and exploration, today, the “fatigue failure” problem still ranks first among the three major problems. Because wear and tear can be prevented in advance through early warning, corrosion can be extended through trimming and protection, and fatigue is sudden breakage without any warning, which can be said to be impossible to prevent.

“Forming” manufacturing technology is the first generation of engineering manufacturing technology in the world. It has been passed down for a hundred years. It pursues “form and position precision” and aims to develop in the direction of “near defect-free”, but it does not solve the fatigue problem, resulting in the existence of key components. It has prominent problems such as short life, poor reliability and heavy structure.

From 1948 to 1970, the United States, with the strength of the whole country, researched and invented the second-generation manufacturing technology – “Surface Integrity” manufacturing technology, which is an interdisciplinary technology of “Cutting + Fatigue”. The surface of the components is strengthened, and the fatigue strength is improved to be sensitive to stress concentration, so as to prolong the product life. This technology has given the West a monopoly in high-end manufacturing, but the problem of fatigue has not been resolved, and the world’s manufacturing has not been upgraded and transformed.

Key components are the core of high-end manufacturing, mainly including transmission components, such as gears, bearings, etc.; rotating components, such as blades, wheels, etc.; and main load-bearing components, landing gear, butt bolts, etc. Academician Zhao, who has been engaged in aerospace materials research for a long time, believes that the key component is the integration of the three technical systems of design, manufacturing and materials. Primary failure mode.

Bearings are called the “joints” of the industry. High-performance bearings and gears are key components in mechanical systems. They are widely used in helicopters, aero-engines, racing cars and other precision machinery fields. important factor in sexuality.

In the 1960s, the United States introduced the double vacuum melting technology into gear steel, which solved the key problems of the transmission system. The life of the aviation spindle bearings they manufactured was thousands of hours or even tens of thousands of hours. To this end, five companies in the United States and the West have monopolized 80% of the world’s high-end bearing market and 100% of the aviation and high-speed rail market for more than 50 years. At that time, China’s high-performance gear bearing steel technology was very backward, and the life of aviation main bearings was less than 200 hours, which severely restricted the development of aero-engines, helicopters and other weapons and equipment and high-end mechanical products.

In 2009, the relevant national departments deployed the major project “Basic Research on Anti-fatigue Manufacturing of High-strength Anti-fatigue Aeronautical Components”, requiring the study of a verification piece to evaluate whether the anti-fatigue manufacturing theory and method are available. Because the main bearing of the aero-engine is the most important and difficult key component, the team of Academician Zhao selected a main point main shaft bearing, which can not only complete the verification, but also solve the problem.

In the next 13 years, Academician Zhao presided over the purification research of new bearing gear steel M50NiL. Through the process routes of “purifying raw materials, refining outside the furnace, VIM+VAR double vacuum smelting, and pulling the billet out of the pier”, the purity of M50NiL has exceeded the international leading level. He also designed a case-hardened stainless gear bearing steel composition system, bringing gear bearing steel to ultra-high strength, high toughness and ultra-high hardness levels for the first time.

On July 28, 2021, the aviation main bearing using the new bearing gear steel M50NiL and the most advanced products in the world were “competed on the same stage” in the anti-fatigue test. The ball life of China’s main bearing reached one million hours, 15 times higher than that of foreign products; Under the maximum load of 1.6 times the load spectrum, the accelerated test life (conversion) exceeds 30,000 hours without failure, breaking the international record of 20,000 hours without failure of similar products. The relevant national departments have successfully accepted and passed the basic research project of anti-fatigue manufacturing, including five mechanisms of anti-fatigue manufacturing, four methods of anti-fatigue manufacturing, and technical standards such as 100% increase in fatigue strength and 100 times increase in fatigue life have been completed. This is an epoch-making milestone, and another world record in the mechanical engineering manufacturing industry was born!

NSK Develops ROBUSTGRD™ Seizure-Resistant Grease for Machine Tool Spindle Bearings

NSK has developed ROBUSTGRD, an environmentally friendly grease lubricant that improves seizure resistance and contributes to higher productivity and long-term stable operation of machine tools.

ROBUSTGRD improves seizure resistance and reliability in machine tools using cutting fluid and enables the adoption of environmentally friendly grease lubrication in applications typically covered by oil-air lubrication.

Production of ROBUSTGRD will begin in spring 2023, and NSK is targeting 4 billion yen in sales by 2026.

NSK will be exhibiting the new grease at “JIMTOF 2022 The 31st Japan International Machine Tool Fair” to be held at Tokyo Big Site from November 8-13, 2022.

ROBUSTGRD

Background

Oil-air lubrication is widely used in machine tools for its excellent lubrication performance. However, oil-air lubrication uses a large amount of compressed air and consumes a lot of electricity, so there is a need to reduce power consumption to reduce running costs and pursue carbon neutrality.

Grease lubrication does not use compressed air, leading to energy savings compared to oil-air lubrication, but reliability improvement has been an issue.

In the development of the new grease, NSK aimed to further enhance reliability while enabling more machining applications to use more environmentally friendly grease lubrication.

Product Features

1. High Seizure Resistance
Optimized grease composition to achieve 5 times higher* seizure resistance compared to our conventional grease.

* Under accelerated test conditions of approximately 3 times the typical usage conditions

 1. High Seizure Resistance
2. High Reliability in Machine Tools Using Cutting Fluid
Previously, a concern of grease lubrication was that cutting fluid or coolant could infiltrate the bearing, causing the oil film to break and adversely affect lubrication performance. The newly developed ROBUSTGRD maintains the protective oil film by reducing the adverse effects of cutting fluid or coolant that enters the bearing.

 High Reliability in Machine Tools Using Cutting Fluid

Product Benefits

Improved seizure resistance and reliability in machine tools using cutting fluid or coolant enables the adoption of grease lubrication to reduce power consumption of machine tools. In addition, the increased reliability contributes to improved productivity and long-term stable operation.

About NSK

NSK began its journey manufacturing the first bearings in Japan in 1916, and has since developed into a global organization researching, designing, and manufacturing Motion & Control™ solutions essential for mobility and industrial applications. NSK is the top supplier of bearings in Japan and is the third largest supplier in the world by market share.

Our responsive products and technologies enhance automotive performance and industrial productivity while reducing energy consumption to unprecedented low levels. In the early 1960s, we set our sights outside Japan and have established over 200 business locations in 30 countries alongside a vast network of joint ventures and partnerships in all corners of the world.

NSK Corporate Philosophy

NSK contributes to a safer, smoother society and helps protect the global environment through its innovative technology integrating Motion & Control. As a truly international enterprise, we are working across national boundaries to improve relationships between people throughout the world.

Thrust Ball Bearing Dimension Chart

Thrust ball bearings are designed to withstand thrust loads during high-speed operation, and consist of a washer-like ferrule with a ball-rolling raceway groove. Since the ferrule is in the form of a seat cushion, the thrust ball bearing is divided into two types: flat seat cushion type and self-aligning spherical seat cushion type. In addition, this bearing can withstand axial loads, but not radial loads.

Stamped steel cages are the most commonly used thrust ball bearings. In addition, there are copper cages and other designs. For special purposes, there will be a full ball bearing design that does not require cages. This type of bearing is also called thrust deep groove ball. Bearings, we can produce different materials such as Miniature Thrust Ball Bearings, Chrome Steel Thrust Ball Bearings, Stainless Steel Thrust Ball Bearings, Ceramic Thrust Bearings, Plastic Thrust Bearings, etc.

Thrust Ball Bearing Dimension (Size) Chart

Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
BA 3 3 8 3.5 0.806 0.72 26 000 36 000
BA 4 4 10 4 0.761 0.72 22 000 30 000
BA 5 5 12 4 0.852 0.965 20 000 28 000
BA 6 6 14 5 1.78 1.92 17 000 24 000
BA 7 7 17 6 2.51 2.9 14 000 19 000
BA 8 8 19 7 3.19 3.8 12 000 17 000
BA 9 9 20 7 3.12 3.8 12 000 16 000
51100 10 24 9 8.71 12.2 9 500 13 000
51200 10 26 11 12.7 18.6 8 000 11 000
51101 12 26 9 10.4 16.6 9 000 13 000
51201 12 28 11 13.3 20.8 8 000 11 000
53201 U 201 12 28 11.4 13 13.3 20.8 8 000 11 000
51102 15 28 9 10.6 18.3 8 500 12 000
51202 15 32 12 15.9 25 7 000 10 000
53202 U 202 15 32 13.3 15 15.9 25 7 000 10 000
51103 17 30 9 11.4 21.2 8 500 12 000
51203 17 35 12 16.3 27 6 700 9 500
53203 U 203 17 35 13.2 15 16.3 27 6 700 9 500
51104 20 35 10 15.1 29 7 500 10 000
51204 20 40 14 21.2 37.5 6 000 8 000
53204 U 204 20 40 14.7 17 21.2 37.5 5 600 8 000
51105 25 42 11 18.2 39 6 300 9 000
51205 25 47 15 26.5 50 5 300 7 500
53205 U 205 25 47 16.7 19 26.5 50 5 000 7 000
51305 25 52 18 34.5 60 4 500 6 300
51405 25 60 24 42.3 67 3 600 5 000
51106 30 47 11 19 43 6 000 8 500
51206 30 52 16 25.1 51 4 800 6 700
53206 U 206 30 52 17.8 20 25.1 51 4 500 6 300
51306 30 60 21 35.8 65.5 3 800 5 300
Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
53306 U 306 30 60 22.6 25 35.8 65.5 3 800 5 300
51406 30 70 28 70.2 122 3 000 4 300
51107 35 52 12 19.9 51 5 600 7 500
51207 35 62 18 35.1 73.5 4 000 5 600
53207 U 207 35 62 19.9 22 35.1 73.5 4 000 5 600
51307 35 68 24 49.4 96.5 3 400 4 800
53307 U 307 35 68 25.6 28 49.4 96.5 3 200 4 500
51407 35 80 32 76.1 137 2 600 3 600
51108 40 60 13 25.5 63 5 000 7 000
51208 40 68 19 44.2 96.5 3 800 5 300
53208 U 208 40 68 20.3 23 44.2 96.5 3 600 5 300
51308 40 78 26 61.8 122 3 000 4 300
53308 U 308 40 78 28.5 31 61.8 122 2 800 4 000
51408 40 90 36 95.6 183 2 400 3 400
53408 U 408 40 90 38.2 42 95.6 183 2 400 3 200
51109 45 65 14 26.5 69.5 4 500 6 300
51209 45 73 20 39 86.5 3 600 5 000
53209 U 209 45 73 21.3 24 39 86.5 3 400 4 800
51309 45 85 28 76.1 153 2 800 4 000
53309 U 309 45 85 30.1 33 76.1 153 2 600 3 800
51409 45 100 39 124 240 2 200 3 000
51110 50 70 14 27 75 4 300 6 300
51210 50 78 22 49.4 116 3 400 4 500
53210 U 210 50 78 23.5 26 49.4 116 3 200 4 500
51310 50 95 31 81.9 170 2 600 3 600
53310 U 310 50 95 34.3 37 81.9 170 2 400 3 400
51410 50 110 43 159 340 2 000 2 800
53410 U 410 50 110 45.6 50 159 340 1 900 2 600
51111 55 78 16 30.2 81.5 3 800 5 300
51211 55 90 25 58.5 134 2 800 4 000
Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
53211 U 211 55 90 27.3 30 58.5 134 2 800 3 800
51311 55 105 35 101 224 2 200 3 200
53311 U 311 55 105 39.3 42 101 224 2 200 3 000
51411 55 120 48 195 400 1 800 2 400
53411 U 411 55 120 50.5 55 195 400 1 700 2 400
51112 60 85 17 41.6 122 3 600 5 000
51212 60 95 26 59.2 140 2 800 3 800
53212 U 212 60 95 28 31 59.2 140 2 600 3 600
51312 60 110 35 101 224 2 200 3 000
53312 U 312 60 110 38.3 42 101 224 2 000 3 000
51412 M 60 130 51 199 430 1 600 2 200
53412 M U 412 60 130 54 58 199 430 1 600 2 200
51113 65 90 18 37.7 108 3 400 4 800
51213 65 100 27 60.5 150 2 600 3 600
53213 U 213 65 100 28.7 32 60.5 150 2 600 3 600
51313 65 115 36 106 240 2 000 3 000
53313 U 313 65 115 39.4 43 106 240 2 000 2 800
51413 M 65 140 56 216 490 1 500 2 200
51114 70 95 18 40.3 120 3 400 4 500
53214 U 214 70 105 27 32 62.4 160 2 600 3 600
51214 70 105 27 62.4 160 2 600 3 600
51314 70 125 40 135 320 1 900 2 600
53314 U 314 70 125 44.2 48 135 320 1 800 2 600
51414 M 70 150 60 234 550 1 400 2 000
53414 M U 414 70 150 63.6 69 234 550 1 400 2 000
51115 75 100 19 44.2 134 3 200 4 300
51215 75 110 27 63.7 170 2 400 3 400
53215 U 215 75 110 28.3 32 63.7 170 2 400 3 400
51315 75 135 44 163 390 1 700 2 400
53315 U 315 75 135 48.1 52 163 390 1 700 2 400
Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
51415 M 75 160 65 251 610 1 300 1 800
53415 M U 415 75 160 69 75 251 610 1 300 1 800
51116 80 105 19 44.9 140 3 000 4 300
51216 80 115 28 76.1 208 2 400 3 400
53216 U 216 80 115 29.5 33 76.1 208 2 400 3 200
51316 80 140 44 159 390 1 700 2 400
53316 U 316 80 140 47.6 52 159 390 1 600 2 200
51416 M 80 170 68 302 750 1 200 1 700
51117 85 110 19 44.9 146 3 000 4 300
51217 85 125 31 97.5 275 2 200 3 000
53217 U 217 85 125 33.1 37 97.5 275 2 000 3 000
51317 85 150 49 174 405 1 600 2 200
53317 U 317 85 150 53.1 58 174 405 1 500 2 000
51417 M 85 180 72 286 750 1 200 1 600
51118 90 120 22 59.2 208 2 600 3 800
51218 90 135 35 112 290 2 000 2 800
53218 U 218 90 135 38.5 42 112 290 1 900 2 600
51318 90 155 50 182 440 1 500 2 200
53318 U 318 90 155 54.6 59 182 440 1 400 2 000
51418 M 90 190 77 307 815 1 100 1 500
53418 M U 418 90 190 81.2 88 307 815 1 100 1 500
51120 100 135 25 80.6 265 2 400 3 200
51220 100 150 38 119 325 1 800 2 400
53220 U 220 100 150 40.9 45 119 325 1 700 2 400
51320 100 170 55 225 570 1 400 1 900
53320 U 320 100 170 59.2 64 225 570 1 300 1 800
51420 M 100 210 85 371 1 060 950 1 400
53420 M U 420 100 210 90 98 371 1 060 950 1 300
51122 110 145 25 83.2 285 2 200 3 200
51222 110 160 38 125 365 1 700 2 400
Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
53222 U 222 110 160 40.2 45 125 365 1 700 2 400
51322 M 110 190 63 291 800 1 200 1 700
53322 M 110 190 67.2 72 291 800 1 200 1 600
51422 M 110 230 95 410 1 220 900 1 300
51124 120 155 25 85.2 305 2 200 3 000
51224 120 170 39 127 390 1 600 2 200
51324 M 120 210 70 332 980 1 100 1 500
53324 M 120 210 74.1 80 332 980 1 000 1 500
51424 M 120 250 102 432 1 320 800 1 100
51126 130 170 30 119 440 1 900 2 600
51226 130 190 45 186 585 1 400 2 000
53226 U 226 130 190 47.9 53 186 585 1 300 1 800
51326 M 130 225 75 351 1 060 1 000 1 400
51426 M 130 270 110 520 1 730 750 1 000
51128 140 180 31 111 440 1 800 2 600
51228 140 200 46 208 630 1 400 1 900
53228 U 228 140 200 48.6 55 190 620 1 300 1 800
51328 M 140 240 80 416 1 370 950 1 300
51428 M 140 280 112 520 1 730 700 1 000
51130 M 150 190 31 111 440 1 700 2 400
51230 M 150 215 50 247 800 1 300 1 800
51330 M 150 250 80 423 1 460 900 1 300
51430 M 150 300 120 559 1 960 670 950
51132 M 160 200 31 112 465 1 700 2 400
51232 M 160 225 51 247 800 1 200 1 700
51332 M 160 270 87 442 1 600 850 1 200
51134 M 170 215 34 133 540 1 600 2 200
51234 M 170 240 55 281 980 1 100 1 600
51334 M 170 280 87 449 1 700 800 1 100
51136 M 180 225 34 135 570 1 500 2 200
Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
51236 M 180 250 56 296 1 080 1 100 1 500
51336 M 180 300 95 520 2 000 750 1 100
51138 M 190 240 37 172 710 1 400 2 000
51238 M 190 270 62 338 1 250 1 000 1 400
51338 M 190 320 105 559 2 200 700 950
51140 M 200 250 37 168 710 1 400 1 900
51240 M 200 280 62 332 1 250 1 000 1 400
51340 M 200 340 110 624 2 600 630 900
51144 M 220 270 37 178 800 1 300 1 900
51244 M 220 300 63 358 1 460 950 1 300
51148 M 240 300 45 234 1 040 1 100 1 600
51248 M 240 340 78 449 1 960 800 1 100
51152 M 260 320 45 238 1 100 1 100 1 500
51252 M 260 360 79 488 2 240 750 1 100
51156 M 280 350 53 319 1 460 950 1 300
51256 M 280 380 80 488 2 320 750 1 000
51160 M 300 380 62 364 1 760 850 1 200
51260 M 300 420 95 585 3 000 630 850
51164 M 320 400 63 371 1 860 800 1 100
51264 F 320 440 95 572 3 000 600 850
51264 M 320 440 95 572 3 000 600 850
51168 M 340 420 64 377 1 960 800 1 100
51268 F 340 460 96 605 3 200 600 800
51368 F 340 540 160 1 040 5 850 400 560
59172 F 360 440 48 255 1 500 900 1 200
51172 F 360 440 65 390 2 080 750 1 100
51272 F 360 500 110 741 4 150 530 750
351793 380 460 36 186 1 140 1 000 1 400
59176 F 380 460 48 255 1 530 850 1 200
51176 F 380 460 65 397 2 200 750 1 000
Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
51276 F 380 520 112 728 4 150 500 700
51080 F 400 440 30 124 900 1 100 1 600
59180 F 400 480 48 260 1 630 850 1 200
51180 F 400 480 65 403 2 280 700 1 000
51280 F 400 540 112 761 4 500 500 700
51084 F 420 460 30 125 880 1 100 1 600
59184 F 420 500 48 265 1 700 850 1 200
51184 F 420 500 65 410 2 400 700 1 000
51284 F 420 580 130 884 5 500 430 600
51088 F 440 480 30 127 915 1 100 1 500
59188 F 440 540 60 238 1 500 700 1 000
51188 F 440 540 80 527 3 250 600 850
51288 F 440 600 130 904 5 700 430 600
51092 F 460 500 30 130 1 040 1 100 1 500
59192 F 460 560 60 242 1 530 700 950
51192 F 460 560 80 527 3 250 600 800
51292 F 460 620 130 923 5 850 430 600
51096 F 480 520 30 133 1 000 1 000 1 500
59196 F 480 580 60 442 2 800 670 950
51196 F 480 580 80 540 3 550 560 800
51296 F 480 650 135 995 6 550 400 560
510/500 F 500 540 30 133 1 120 1 000 1 400
591/500 F 500 600 60 449 2 900 670 950
511/500 F 500 600 80 553 3 600 560 800
512/500 F 500 670 135 1 010 6 800 380 530
510/530 F 530 580 38 203 1 600 850 1 200
591/530 F 530 640 67 468 3 150 600 850
511/530 F 530 640 85 650 4 400 530 750
510/560 F 560 610 38 203 1 660 850 1 200
591/560 F 560 670 67 475 3 250 600 800
Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
511/560 F 560 670 85 650 4 650 500 700
510/600 F 600 650 38 212 1 800 800 1 100
511/600 F 600 710 85 663 4 800 500 700
350769 600 800 90 676 5 000 450 630
BD1-8000 600 870 118 1 120 8 000 220 300
510/630 F 630 680 38 221 1 930 800 1 100
591/630 F 630 750 73 540 4 000 530 750
511/630 F 630 750 95 728 5 400 450 630
591/670 F 670 800 78 540 4 150 480 670
511/670 F 670 800 105 852 6 700 400 560
511/670 M 670 800 105 852 6 700 400 560
510/710 F 710 780 53 358 2 850 600 850
591/710 JR 710 845 85 676 5 400 450 630
511/710 F 710 850 112 936 7 650 380 530
510/750 F 750 820 53 364 3 050 600 850
591/750 M 750 900 90 741 6 200 400 600
511/750 M 750 900 120 1 010 8 650 340 480
510/800 F 800 870 53 371 3 200 560 800
591/800 M 800 950 90 761 6 550 400 560
510/850 M 850 920 53 377 3 450 560 800
591/850 M 850 1 000 90 761 6 800 380 560
511/850 F 850 1 000 120 1 060 9 500 320 450
510/900 M 900 980 63 527 4 900 480 670
591/900 M 900 1 060 95 630 7 650 360 500
511/900 F 900 1 060 130 1 120 10 400 300 430
511/900 M 900 1 060 130 1 120 10 400 300 430
510/950 M 950 1 080 63 540 5 100 480 670
591/950 M 950 1 120 103 852 8 150 340 480
511/950 F 950 1 120 135 1 330 12 000 280 400
510/1000 M 1 000 1 090 70 572 5 500 430 600
Designations Principal dimensions Basic load ratings Speed ratings
CoatMaster Seat washer Thrust Bearing manufacturer of China dynamic static Reference speed Limiting speed
Designation d[mm] D[mm] H[mm] H1[mm] C[kN] C0[kN] [r/min] [r/min]
591/1000 M 1 000 1 180 109 923 9 150 320 430
511/1000 F 1 000 1 180 140 1 330 13 200 260 380
510/1060 M 1 060 1 150 70 572 5 850 430 600
591/1060 F 1 060 1 250 115 1 010 10 400 300 400
511/1060 M 1 060 1 250 150 1 430 15 000 240 340
511/1120 F 1 120 1 320 160 1 530 16 300 220 320
511/1180 F 1 180 1 400 175 1 780 20 000 200 280
BD1B 351890 A 1 380 1 535 130 1 330 16 300 240 340
511/1400 F 1 400 1 630 180 1 820 22 000 180 260

SKF Releases New Hybrid Ceramic Deep Groove Ball Bearings

SKF has released a new Hybrid Ceramic Deep Groove Ball Bearings for high-speed applications. The new bearings target applications such as traction motors, motors and drives for the railway industry. SKF has worked with three OEM customers.

The newly released lightweight cage helps to increase the limit speed by at least 60% compared to conventional hybrid ball bearing designs. In addition, the nylon cage also helps reduce friction, resulting in quieter operation and higher power density in the application.

Andreas Pichler, SKF commercial and project engineer, said: “The new cage design can effectively help our customers achieve higher power output and further reduce the size of the motor.”
By increasing the efficiency of the motor, the new hybrid deep groove ball bearing can reduce energy consumption, improve reliability and reduce total cost of operation.

The two-lobed cage is made of PEEK and PA66 and is 80% lighter than the same size brass cage. In addition to being quieter, the bearings can also operate at lower temperatures, extending grease life and extending relubrication intervals. This allows engineers more flexibility in design choices.

In addition, its limit speed is twice that of conventional nylon cages and 60% higher than brass cages.

Rigidly connected cage bars ensure the robustness of the cage, helping to extend service life in harsh conditions. The optimized cage design also eliminates radial deformation caused by centrifugal action, known as the “umbrella effect”, which typically occurs with jaw-type cages operating at high speeds.

The newly released hybrid ceramic deep groove ball bearing designs will target OEM equipment manufacturers in railway, construction vehicle, electric vehicle and industrial motor applications.

What are automotive bearings?

bearings-automobiles-2-n

Bearings are the basis of automobile transmission components, and are a very important part of the driving device in automobiles. They are called “joints of the automobile industry” and are used for power generation and transmission to support tire rotation speed.

Automotive Bearings have an important impact on vehicle performance. Bearings for automobiles must be of reliable quality, maintenance-free, long life and low noise. Once damaged, it will affect the driving of the whole vehicle. In terms of safety, the installation position of some bearings is very important, such as wheel hub bearings, which are designed to support the weight of the whole vehicle. Once a fault occurs, it will affect the safety of the whole vehicle. The most important thing about the automobile bearing is safety. In terms of comfort, high-quality bearings have a great impact on the smooth operation of vehicles. Low noise and maintenance-free are very important to user experience. Therefore, car manufacturers have strict quality requirements when selecting bearings.

Due to the advancement of electronic control technology, automobiles are also developing in the direction of practical performance such as low energy consumption, high performance, and easy installation. Therefore, as an important component for automobile support, rolling bearings must adapt to this development trend. The following is a brief introduction to the specific classification of automotive bearings:

1. Automobile engine

Engine ball bearing, condensing fan, automobile water pump shaft bearing, needle roller bearing for engine rocker arm, automobile generator bearing, automobile air-cooled fan bearing 608, 629, automobile tensioner bearing , Automotive clutch bearings, silicone oil fan bearings, automotive air conditioning compressor bearings

roulements-automobiles-5-N

2. Automotive suspension system

Tapered bearings for truck axles and differentials

3.  Wheel hub bearings

roulements-automobiles-3-N

The first generation wheel hub bearing, the second generation wheel hub bearing, the third generation wheel hub bearing, double row angular contact ball bearing, double row tapered roller bearing, double row angular contact ball bearing with flange, double row angular contact ball bearing with flange, double Row tapered roller bearings With flange.

 

4. Automotive gearbox

roulements-automobiles-6-N

Tapered roller bearings for automotive gearboxes, Cylindrical roller bearings for automotive gearboxes, Ball bearings for automotive gearboxes, Needle roller bearings for automotive gearboxes

5.  Clutch release bearings

roulements-automobiles-7-N

King Pin Bearings, Clutch bearings, Clutch kingpin bearings, thrust ball bearings, thrust tapered roller bearings, thrust cylindrical roller bearings

 

EASIER bearings Automotive offers a comprehensive range of automotive bearings for trucks, trailers, commercial vehicles and passenger cars, designing and manufacturing bearings for European and Asian vehicles. EASIER’s high quality automotive products, guaranteed through continued control, are designed to withstand harsh conditions.

TAPERED ROLLER BEARING

Frequently used in truck axles. Tapered roller bearing is able to withstand considerable axial and radial loading. By enlarging the outer ring angle, the bearing ability to withstand the axial load increases.

BALL BEARING

That is one of the most popular type of rolling bearings. Ball bearing is widely used also in trucks – transmission, reduction gears and engines. We present ball bearing in accuracy class 6, closed type.

HUB BEARING

Used in the axles of commercial trucks. Hub bearings come with seals, greasing and mounting rings that are necessary for replacement.

HUB REPAIRING KIT

The set of two tapered roller bearings with seals and rings that are also used in the axle. All hub repairing kits come with seals, greasing, assembling and sealing rings that are necessary for replacement.

Thrust King Pin Bearings

Thrust Ball Bearings, Thrust Ball Bearings with shell, Thrust Roller Bearings with shell.

DAC Series Wheel Bearings

Double Row Angular Contact Ball Bearing for passenger car wheels

With the development of the economy and the progress of the society, the requirements of the industrial industry for bearings are also constantly being upgraded. The new energy vehicle industry has developed rapidly in recent years. The amount of bearings used in new energy vehicles is less than that of traditional vehicles, but the quality of bearings is affected. The requirements are higher, and Chinese-made bearings are also deploying the new energy automobile bearing industry. I believe that the world industry of automobile bearings will have a new situation in the future.

TIMING TENSIONER BEARINGS GT80260 PROTON TIARA, PEUGEOT 405

 

Manufacturer Numer Manufacturer Numer Manufacturer Numer
GMB GT80260 OE 820.53 SKF VKM 13100
INA 531003010 OE 829.19 OE 97522886
INA F-121287.05 OE 829.54 OE 97535002
INA F-121287.1 OE 96281179 INA F-121287.5

The belt tensioner is at the front of an internal combustion engine. A belt-driven outer ring mechanism, including a timing belt, is essential in the set. The tensioner provides tension to the belt, which drives from the crankshaft to the camshaft, alternator, air compressor, power steering pump, and water pump. The tensioner bearing is placed at the slack side.

A tensioner bearing consists of a base, tensioner arm, spring, and pulley. It provides pressure to a timing belt that drives other pulleys while easing the strain on that belt. The belt needs to run at a constant tension to ensure that it is always ensuring that the alternator has enough power to move the pulleys, which drive all these individual components. Other primary functions include:

  • Transfer driving force from crankshaft.
  • Prevent noise caused by an off-line belt.
  • Prevent the belt from slipping.
  • Keep the belt-driven mechanism compact.

A tensioner bearing must handle high temperatures, high-speed rotation, and belt vibration because of contiguity in the engine to make the direction of a belt change. These bearings are designed against different specifications from standard deep groove bearings. There are various styles according to engine types. Queen Jen produces four kinds of tensioner bearing: utilized, ball bearing, pulley type, and bracket assembled. Our R&D team develops timing belt tensioner bearings for engines of various car models. We care about the following features in our design:

  • Premium materials that ensure reliability and durability.
  • Resistance to both high and low temperatures.
  • Low torque to minimize the seal friction.
  • Optimal seal for preventing grease leakage.
  • Tolerance control for alignment

 

Functions

· To provide belt with tension

· To transfer driving force from crankshaft

· To prevent belt slippage

· To prevent noise caused by off-line belt

· To minimize space of belt layout

Functions of Tensioner & Idler Bearing

Tensioner and idler bearing consists of basic components like inner ring, outer ring, retainer, grease and seal. Pulley may be added to adjust rotation ratio. Bracket may be added to adjust location for adding tension. Races are one of the bearing component parts. It has grooved track for balls to locate. Outer race and inner race make a set. Inner race is situated on sub-assembly unit and outer race is set on housing. Pulley may be added on outer race to provide timing belt system with designed revolution rate. Rolling element is “ball” running between races. Retainer moving along with balls separates individual ball into position. Also grease has important role to reduce friction and oil seal serves to hold grease and shut foreign particles from intrusion.

Structure

 

These are used in the timing belt and auxiliary drive belt to adjust the belt tension or change the belt running path. EASIER’s bearings have a long service life even under high-speed rotation and high-temperature conditions, and their high-strength resin pulleys help to reduce the weight. The timing and auxiliary belts are equipped with idler bearings with pulleys and brackets attached to them. Of these, in the timing belt mechanism, the type with a slotted hole in the inner ring or a bracket for tension adjustment is sometimes called the “tensioner bearing,” and the type without an adjustment mechanism is sometimes called the “idler bearing.” Auxiliary idler bearings are also used in auxiliary drive belt mechanisms. EASIER Can manufacturer and supply Tensioner and Idler Bearings with competitive price and high quality.

 

E-mail: brandbearings@gmail.com

Tel: 0086-13280450757

Skype: brandbearings

www.china-bearing-manufacturer.com

China NTM8842 Lovol Tractor Clutch Release Bearing TA820.213-10

Type: Clutch Release Bearing

Designation: NTM8842 Bearing

OEM Code: TA820.213-10

Dimension: 88*132*51.5mm

Weight: 3.5kg

Materials: Chrome Steel

Materials of Cage: Nylon

Quality Grade: ABEC-1

 

Tractor bearings are mainly used in the field, the working environment is bad, and the continuous working time is long, which requires the bearings to be reliable in the use process, and work normally in the dusty environment,

 

Agricultural tractors are the work horses of the industry with drivetrain, engine, suspension and steering being key sub-systems Safety, availability and productivity are the underlying forces driving many of the industry trends, such as:

  • Automation, smart functionality and power management
  • Better efficiency which reduces frictional losses,

resulting in lower fuel costs

  • Increased power density and reliability
  • Standardization (consolidation of the powertrain)
  • Improved comfort and safety

The main types of bearings used by tractors are

— Single row tapered roller bearings

— Matched tapered roller bearings

— Inch tapered roller bearings

— Deep groove ball bearings

Clutch Release Bearings

 

E-mail: brandbearings@gmail.com

www.china-bearing-manufacturer.com

Contact Person: Fred.W

China Bearing Manufacturer

Inch Size Tapered Roller Bearings Size Chart

Inch tapered roller bearings refer to tapered roller bearings whose dimensions are measured in inches, originating from British and American countries.
Inch tapered roller bearings, like metric tapered roller bearings, consist of an inner ring, an outer ring and tapered rolling elements. Due to their designed geometry, tapered roller bearings can withstand combined loads (axial and radial). In addition, this design allows the rollers to continue to roll even if the rollers slip on the outer and inner race tracks.

Inch Tapered Roller Bearings are the most used roller bearings in the market, the materials can be chrome steel, carbon steel, stainless steel, ceramic materials and also ceramic coating which used in different applications, and OEM Service available with CoatMaster Bearings.

Inch size Tapered roller bearings refer to radial thrust rolling bearings in which the rolling elements are tapered rollers. There are two kinds of small cone angle and large cone angle. The small cone angle mainly bears the combined radial and axial loads mainly with radial loads. It is often used in pairs and installed in reverse. The inner and outer races can be installed separately. The radial and axial clearance can be adjusted during installation and use; The large cone angle mainly bears the axial and radial combined loads, which are mainly axial loads. Generally, it is not used alone to support pure axial loads. When configured in pairs (installed with the same name opposite), it can bear pure radial loads.

The single-row tapered roller bearing’s ability to withstand axial load depends on the contact angle, that is, the outer ring raceway angle. The larger the angle, the greater the axial load capacity. The most used tapered roller bearings are single-row tapered roller bearings. In the front wheel hub of the car, a small double-row tapered roller bearing is used. Four-row tapered roller bearings are used in heavy machines such as large cold and hot rolling mills.

Inch Size Tapered Roller Bearings Size Chart

Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
A 4059/A 4138 14.989 34.988 10.998 16.5 13.2 17 000 22 000
11590/11520 15.875 42.862 14.288 21.5 17.6 13 000 17 000
LM 11749/710 17.462 39.878 13.843 26.1 20.8 15 000 18 000
LM 11949/910 19.05 45.237 15.494 33.8 27.5 13 000 16 000
M 12649/610 21.43 50.005 17.526 45.4 38 12 000 15 000
LM 12749/710 21.987 45.237 15.494 33.9 31 12 000 15 000
320/22 X 22 44 15 30.9 29 13 000 15 000
15101/15245 25.4 62 19.05 59.5 57 9 000 11 000
15578/15520 25.4 57.15 17.462 49.1 45.5 10 000 12 000
L 44643/610 25.4 50.292 14.224 32 30 11 000 13 000
M 84548/510 25.4 57.15 19.431 48.8 45 10 000 12 000
L 44649/610 26.988 50.292 14.224 32 30 11 000 13 000
302/28 28 58 17.25 46.6 41.5 10 000 12 000
320/28 X 28 52 16 39 38 10 000 13 000
322/28 B 28 58 20.25 51.9 50 9 500 12 000
1988/1922 28.575 57.15 19.845 58.2 55 10 000 12 000
L 45449/410 29 50.292 14.224 31.8 32.5 11 000 13 000
M 86649/610 30.162 64.292 21.433 60.4 61 8 500 11 000
M 88043/010 30.162 68.262 22.225 67.1 69.5 8 000 10 000
15123/15245 31.75 62 18.161 59.5 57 9 000 11 000
HM 88542/510 31.75 73.025 29.37 86.5 95 7 500 9 000
LM 67048/010 31.75 59.131 15.875 42.8 41.5 9 500 11 000
320/32 X 32 58 17 45.1 46.5 9 000 11 000
14131/14276 33.338 69.012 19.845 65.8 67 8 000 10 000
25877/25821 34.925 73.025 23.812 89.1 88 8 000 9 500
HM 88649/610 34.925 72.233 25.4 83 90 7 500 9 000
HM 89446/410 34.925 76.2 29.37 95.2 106 7 000 8 500
LM 48548 A/510 34.925 65.088 18.034 58 57 8 500 10 000
L 68149/110 34.987 59.131 15.875 40.6 44 9 000 11 000
L 68149/111 34.987 59.975 15.875 40.6 44 9 000 11 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
HM 89449/410 36.512 76.2 29.37 95.2 106 7 000 8 500
JL 69349 A/310 38 63 17 45.7 52 8 500 10 000
JL 69349 X/310 38 63 17 45.7 52 8 500 10 000
JL 69349/310 38 63 17 45.7 52 8 500 10 000
418/414 38.1 88.5 26.988 123 114 6 700 8 500
HM 801346 X/310 38.1 82.55 29.37 106 118 6 700 8 000
HM 801346/310 38.1 82.55 29.37 106 118 6 700 8 000
LM 29748/710 38.1 65.088 18.034 53 57 8 000 10 000
LM 29749/710 38.1 65.088 18.034 53 57 8 000 10 000
LM 29749/711 38.1 65.088 19.812 53 57 8 000 10 000
T2EE 040 40 85 33 150 150 6 700 8 000
LM 300849/811 40.987 67.975 17.5 53.6 58.5 8 000 9 500
24780/24720 41.275 76.2 22.225 84.2 86.5 7 000 9 000
3585/3525 41.275 87.312 30.162 126 132 6 300 8 000
HM 803146/110 41.275 88.9 30.162 116 127 6 000 7 500
LM 501349/310 41.275 73.431 19.558 67.6 68 7 500 9 000
LM 501349/314 41.275 73.431 21.43 67.6 68 7 500 9 000
M 802048/011 41.275 82.55 26.543 91.2 91.5 6 700 8 000
25577/25523 42.875 82.931 26.988 99.1 106 6 700 8 000
25580/25520 44.45 82.931 23.812 99.1 106 6 700 8 000
25580/25522 44.45 83.058 23.876 99.1 106 6 700 8 000
25580/25523 44.45 82.931 26.988 99.1 106 6 700 8 000
3782/3720 44.45 93.264 30.163 134 146 5 600 7 000
53178/53377 44.45 95.25 30.958 108 96.5 5 300 7 000
535/532 A 44.45 111.125 38.1 183 190 5 300 6 300
HM 803149/110 44.45 88.9 30.162 116 127 6 000 7 500
HM 903249/210 44.45 95.25 30.958 124 122 5 300 7 000
358 X/354 X 45 85 20.638 87.3 81.5 6 700 8 000
T2ED 045 45 95 36 182 186 6 000 7 000
T7FC 045 45 95 29 110 112 5 300 7 000
LM 102949/910 45.242 73.431 19.558 66 75 7 000 8 500
LM 603049/011 45.242 77.788 19.842 66.8 69.5 7 000 8 500
LM 603049/012 45.242 77.788 21.43 66.8 69.5 7 000 8 500
25590/25520 45.618 82.931 23.812 99.1 106 6 700 8 000
25590/25523 45.618 82.931 26.988 99.1 106 6 700 8 000
LM 503349/310 45.987 74.975 18 62.1 71 7 000 8 500
18690/18620 46.038 79.375 17.462 61.1 62 7 000 8 500
359 S/354 X 46.038 85 20.638 87.3 81.5 6 700 8 000
369 S/362 A 47.625 88.9 20.638 94 91.5 6 300 7 500
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
JLM 104945/910 50 82 21.501 88.9 100 6 300 8 000
JM 205149/110 50 90 28 130 140 6 000 7 500
JM 205149/110 A 50 90 28 130 140 6 000 7 500
T2ED 050 50 100 36 189 200 5 600 6 700
T7FC 050 50 105 32 134 137 4 800 6 300
18790/18720 50.8 85 17.462 62.1 65.5 6 300 8 000
368 A/362 A 50.8 88.9 20.638 94 91.5 6 300 7 500
368 A/362 X 50.8 90 25 94 91.5 6 300 7 500
537/532 X 50.8 107.95 36.512 183 190 5 300 6 300
539/532 X 53.975 107.95 36.512 183 190 5 300 6 300
72212/72487 53.975 123.825 36.512 174 160 4 300 5 600
LM 806649/610 53.975 88.9 19.05 71.5 78 6 000 7 000
T2ED 055 55 110 39 220 232 5 000 6 000
T7FC 055 55 115 34 155 163 4 300 5 600
387 A/382 A 57.15 96.838 21 99.9 102 5 600 6 700
39581/39520 57.15 112.712 30.162 175 204 4 500 5 600
462/453 X 57.15 104.775 30.162 150 160 5 300 6 300
6391/K-6320 59.987 135.755 53.975 353 400 4 000 5 000
JLM 508748/710 60 95 24 103 132 5 300 6 700
T2EE 060 60 115 40 239 260 4 800 5 600
T7FC 060 60 125 37 190 204 4 000 5 300
395/394 A 63.5 110 22 108 118 4 800 6 000
39585/39520 63.5 112.712 30.162 175 204 4 500 5 600
3982/3920 63.5 112.712 30.163 152 183 4 800 5 600
JLM 710949/910 65 105 24 122 137 5 000 6 000
JM 511946/910 65 110 28 152 183 4 800 5 600
T2DD 065 65 110 31 170 193 4 800 6 000
T7FC 065 65 130 37 194 216 3 800 5 000
6379/K-6320 65.088 135.755 53.975 353 400 4 000 5 000
395 A/394 A 66.675 110 22 108 118 4 800 6 000
395 S/394 A 66.675 110 22 108 118 4 800 6 000
39590/39520 66.675 112.712 30.162 175 204 4 500 5 600
3984/3920 66.675 112.712 30.162 152 183 4 800 5 600
6386/K-6320 66.675 135.755 53.975 353 400 4 000 5 000
482/472 69.85 120 29.795 163 186 4 500 5 300
566/563 69.85 127 36.512 217 255 4 300 5 000
T2ED 070 70 130 43 289 325 4 000 5 000
T7FC 070 70 140 39 219 240 3 400 4 500
33281/33462 71.438 117.475 30.162 152 190 4 500 5 300
H 715345/311 71.438 136.525 46.038 273 355 3 800 4 500
567/563 73.025 127 36.512 217 255 4 300 5 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
JH 415647/610 75 145 51 380 450 3 600 4 500
JM 714249/210 75 120 31 170 216 4 300 5 300
42687/42620 76.2 127 30.162 171 204 4 000 5 000
47678/47620 76.2 133.35 33.338 202 260 3 800 4 800
575/572 76.2 139.992 36.512 227 280 3 800 4 500
34306/34478 77.788 121.442 24.608 115 134 4 300 5 300
42690/42620 77.788 127 30.163 171 204 4 000 5 000
JM 515649/610 80 130 35 216 275 4 000 4 800
580/572 82.55 139.992 36.512 227 280 3 800 4 500
663/653 82.55 146.05 41.275 270 320 3 600 4 300
749 A/742 82.55 150.089 44.45 351 405 3 600 4 300
T7FC 085 85 170 48 333 380 2 800 3 800
497/492 A 85.725 133.35 30.163 178 220 3 800 4 500
593/592 A 88.9 152.4 39.688 237 305 3 400 4 300
6580/6535 88.9 161.925 53.975 404 510 3 200 4 000
HM 218248/210 89.975 146.975 40 280 355 3 400 4 300
6581 X/6535 90 161.925 53.975 404 510 3 200 4 000
JM 718149 A/110 90 145 35 246 305 3 600 4 300
JM 718149/110 90 145 35 246 305 3 600 4 300
598/592 A 92.075 152.4 39.688 237 305 3 400 4 300
594 A/592 A 95.25 152.4 39.688 237 305 3 400 4 300
594/592 A 95.25 152.4 39.688 237 305 3 400 4 300
683/672 95.25 168.275 41.275 288 365 3 000 3 800
HM 220149/110 99.975 156.975 42 303 400 3 200 4 000
T2EE 100 100 165 47 383 480 3 200 3 800
T4CB 100 100 145 24 154 190 3 400 4 300
687/672 101.6 168.275 41.275 288 365 3 000 3 800
HH 224335/310 101.6 212.725 66.675 619 830 2 200 3 000
56425/56650 107.95 165.1 36.512 256 355 3 000 3 600
64432/64708 109.975 179.975 41.275 307 415 2 800 3 400
64450/64700 114.3 177.8 41.275 307 415 2 800 3 400
68450/68712 114.3 180.975 34.925 227 280 2 800 3 400
938/932 114.3 212.725 66.675 626 765 2 600 3 200
T4CB 120 120 170 27 195 250 2 800 3 600
48290/48220 127 182.562 39.688 281 440 2 600 3 200
67391/67322 133.35 196.85 46.038 395 585 2 400 3 000
L 327249/210 133.35 177.008 25.4 166 280 2 600 3 200
HM 231132/110 139.7 236.538 57.15 629 850 2 200 2 600
T4CB 140 140 195 29 241 325 2 400 3 000
T4DB 150 150 210 32 287 390 2 200 2 800
LM 330448/410 152.4 203.2 41.275 251 480 2 400 2 800
L 432348/310 158.75 205.583 23.812 168 280 2 200 2 800
L 432349/310 158.75 205.583 23.813 168 280 2 200 2 800
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
T4DB 160 160 220 32 257 415 2 000 2 600
HH 437549/510 165.1 336.55 92.075 1 198 1 700 1 400 1 900
T4DB 170 170 230 32 307 440 2 000 2 600
M 336948/912 178.595 265.112 51.595 532 880 1 700 2 200
M 336949/912 179.934 265.112 51.595 532 880 1 700 2 200
T4DB 180 180 240 32 309 450 2 000 2 400
87737/87111 187.325 282.575 50.8 427 695 1 600 2 000
JM 738249/210 190 260 46 443 765 1 800 2 200
87750/87111 190.5 282.575 50.8 427 695 1 600 2 000
LL 639249/210 196.85 241.3 23.812 189 315 1 900 2 400
67981/67919 198.298 279.4 46.038 465 830 1 600 2 000
67982/67919 199.949 279.4 46.038 465 830 1 600 2 000
T4DB 200 200 270 37 401 600 1 700 2 200
67983/67920 203.2 282.575 46.038 465 830 1 600 2 000
67985/67920 206.375 282.575 46.038 465 830 1 600 2 000
H 242649/610 206.375 336.55 98.425 1 230 2 160 1 300 1 800
LM 245846/810 230.188 317.5 47.625 556 980 1 300 1 800
LM 245848/810 231.775 317.5 47.625 556 980 1 300 1 800
T4EB 240 240 320 42 458 815 1 300 1 700
HH 953749/710 254 533.4 133.35 2 012 2 750 800 1 100
M 349547/510 255.6 342.9 57.15 698 1 400 1 200 1 600
M 249747/710 257.175 358.775 71.438 1 030 1 760 1 300 1 600
M 349549/510 257.175 342.9 57.15 698 1 400 1 200 1 600
BT1B 332973 260 540 109 2 120 3 050 850 1 300
38880/38820 263.525 325.438 28.575 273 550 1 400 1 700
L 555249/210 292.1 374.65 47.625 539 1 140 1 100 1 500
LM 757049/010 304.8 406.4 63.5 775 1 700 1 000 1 300
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
HM 259048/010/HA4 317.5 447.675 85.725 1 363 2 700 900 1 200
HM 261049/010 333.375 469.9 90.488 1 428 2 850 850 1 200
LM 361649/610 342.9 450.85 66.675 1 000 2 200 900 1 200
LM 361649 A/610 343.154 450.85 66.675 1 000 2 200 900 1 200
HM 262749/710 346.075 488.95 95.25 1 533 3 150 850 1 100
431884 A 355.65 482.65 60.32 572 1 200 850 1 300
L 865547/512 381 479.425 49.213 638 1 500 800 1 100
LM 567949/910/HA1 406.4 549.275 85.725 1 467 3 050 700 950
LM 869448/410 431.8 571.5 74.612 1 145 2 550 670 900
L 570649/610 457.2 573.088 74.612 1 205 3 000 670 900
LM 272235/210 457.2 615.95 85.725 1 593 3 800 600 800
LM 770949/910 457.2 603.25 85.725 1 541 3 400 630 850
BT1-8003/HA1 479.425 717.55 136.525 3 030 6 800 530 800
BT1B 332529/HA1 479.425 679.45 128.588 2 750 6 300 560 850
EE 243190/243250 482.6 634.873 80.962 1 584 3 650 600 800
LM 772748/710/HA1 488.95 634.873 84.138 1 450 3 650 600 850
EE 243196/243250/HA2 498.475 634.873 80.962 1 470 3 650 600 850
EE 982051/982900 520.7 736.6 88.9 1 650 3 350 530 750
BT1B 328017/HA4 536.575 820 152 3 910 7 800 450 670
M 276449/410 536.575 761.873 146.05 3 360 8 000 500 670
L 476549 AX/510 549.199 692.15 80.963 1 340 3 450 530 1 100
EE 843220/843290 558.8 736.6 88.108 1 963 4 150 500 670
LM 377449/410 558.8 736.6 104.775 2 482 5 700 500 670
BT1B 334140/HA4 660.4 1 000 152.4 4 652 9 500 360 480
L 281147/110 660.4 812.8 95.25 2 086 5 600 430 560
BT1B 332787/HA4 680 1 000 190 5 610 12 700 360 500
BT1B 332705/HA4 682.625 1 080 200 6 710 13 200 320 480
BT1B 332890/HA1 710 950 113 2 860 6 550 360 530
LM 283649/610/HA1 749.3 990.6 159.5 4 903 12 000 340 450
LL 483449/418 762 889 69.85 1 320 3 800 380 500
EE 763330/763410 838.2 1 041.4 93.663 2 140 5 200 320 430
BT1B 328214/HA5 900 1 180 122 3 960 9 150 260 360
BT1-8010/HA4 1 270 1 465 100 3 407 10 800 180 240

 

Tapered Roller Bearings Size Chart

Tapered roller bearings are separable bearings, and both the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into different structural types such as single-row, double-row and four-row tapered roller bearings according to the number of rows of rollers installed. Single row tapered roller bearings can withstand radial loads and axial loads in one direction. When the bearing is subjected to radial load, an axial component force will be generated, so when another bearing that can withstand axial force in the opposite direction is required to balance.

The ability of a single row tapered roller bearing to withstand axial loads depends on the contact angle, that is, the angle of the outer ring raceway. The larger the angle, the greater the axial load capacity. The most used tapered roller bearings are single row tapered roller bearings. In the front wheel hub of the car, a small-sized double-row tapered roller bearing is used. Four-row tapered roller bearings are used in heavy-duty machines such as large cold and hot rolling mills.

Tapered roller bearings are mainly used to bear combined radial and axial loads mainly based on radial loads. Compared with angular contact ball bearings, the bearing capacity is large and the limit speed is low. Tapered roller bearings can withstand axial loads in one direction and can limit the axial displacement of the shaft or housing in one direction.

Tapered Roller Bearing have Metric size and inch size design,  and also carbon steel Tapered Roller Bearings, chrome steel tapered roller bearings, stainless steel tapered roller bearings, insulated tapered roller bearings, plastic tapered roller bearings, ceramic tapered roller bearings, high precision tapered roller bearings, high temperature tapered roller bearings.

 

Tapered Roller Bearings Size Chart

Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
A 4059/A 4138 14.989 34.988 10.998 16.5 13.2 17 000 22 000
30202 15 35 11.75 18.5 14.6 17 000 20 000
30302 15 42 14.25 27.7 20 15 000 18 000
11590/11520 15.875 42.862 14.288 21.5 17.6 13 000 17 000
30203 17 40 13.25 23.4 18.6 15 000 18 000
30303 17 47 15.25 34.2 25 13 000 16 000
32303 17 47 20.25 42.8 33.5 12 000 16 000
LM 11749/710 17.462 39.878 13.843 26.1 20.8 15 000 18 000
LM 11949/910 19.05 45.237 15.494 33.8 27.5 13 000 16 000
30204 20 47 15.25 34.1 28 12 000 15 000
30304 20 52 16.25 41.9 32.5 12 000 14 000
32004 X 20 42 15 29.7 27 13 000 16 000
32304 20 52 22.25 54.3 45.5 11 000 14 000
M 12649/610 21.43 50.005 17.526 45.4 38 12 000 15 000
LM 12749/710 21.987 45.237 15.494 33.9 31 12 000 15 000
320/22 X 22 44 15 30.9 29 13 000 15 000
30205 25 52 16.25 38.1 33.5 11 000 13 000
30305 25 62 18.25 55.3 43 9 500 12 000
31305 25 62 18.25 46.6 40 8 500 11 000
32005 X 25 47 15 33.2 32.5 12 000 14 000
32205 B 25 52 19.25 44.5 44 10 000 13 000
32305 25 62 25.25 74.1 63 9 000 12 000
33205 25 52 22 57.9 56 10 000 13 000
15101/15245 25.4 62 19.05 59.5 57 9 000 11 000
15578/15520 25.4 57.15 17.462 49.1 45.5 10 000 12 000
L 44643/610 25.4 50.292 14.224 32 30 11 000 13 000
M 84548/510 25.4 57.15 19.431 48.8 45 10 000 12 000
L 44649/610 26.988 50.292 14.224 32 30 11 000 13 000
302/28 28 58 17.25 46.6 41.5 10 000 12 000
320/28 X 28 52 16 39 38 10 000 13 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
322/28 B 28 58 20.25 51.9 50 9 500 12 000
1988/1922 28.575 57.15 19.845 58.2 55 10 000 12 000
L 45449/410 29 50.292 14.224 31.8 32.5 11 000 13 000
30206 30 62 17.25 50 44 9 000 11 000
30306 30 72 20.75 69.2 56 8 000 10 000
31306 30 72 20.75 58.3 50 7 500 9 500
32006 X 30 55 17 43.9 44 10 000 12 000
32206 30 62 21.25 61.8 57 9 000 11 000
32306 30 72 28.75 95 85 7 500 10 000
33206 30 62 25 79.7 76.5 8 500 11 000
M 86649/610 30.162 64.292 21.433 60.4 61 8 500 11 000
M 88043/010 30.162 68.262 22.225 67.1 69.5 8 000 10 000
15123/15245 31.75 62 18.161 59.5 57 9 000 11 000
HM 88542/510 31.75 73.025 29.37 86.5 95 7 500 9 000
LM 67048/010 31.75 59.131 15.875 42.8 41.5 9 500 11 000
320/32 X 32 58 17 45.1 46.5 9 000 11 000
14131/14276 33.338 69.012 19.845 65.8 67 8 000 10 000
25877/25821 34.925 73.025 23.812 89.1 88 8 000 9 500
HM 88649/610 34.925 72.233 25.4 83 90 7 500 9 000
HM 89446/410 34.925 76.2 29.37 95.2 106 7 000 8 500
LM 48548 A/510 34.925 65.088 18.034 58 57 8 500 10 000
L 68149/110 34.987 59.131 15.875 40.6 44 9 000 11 000
L 68149/111 34.987 59.975 15.875 40.6 44 9 000 11 000
30207 35 72 18.25 63.2 56 8 000 9 500
30307 35 80 22.75 88.9 73.5 7 500 9 000
31307 35 80 22.75 75.4 67 6 300 8 500
32007 X 35 62 18 52.3 54 8 500 10 000
32207 35 72 24.25 81.2 78 8 000 9 500
32307 35 80 32.75 117 106 6 700 9 000
32307 B 35 80 32.75 115 114 6 300 8 500
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
33207 35 72 28 104 106 7 000 9 500
HM 89449/410 36.512 76.2 29.37 95.2 106 7 000 8 500
JL 69349 A/310 38 63 17 45.7 52 8 500 10 000
JL 69349 X/310 38 63 17 45.7 52 8 500 10 000
JL 69349/310 38 63 17 45.7 52 8 500 10 000
418/414 38.1 88.5 26.988 123 114 6 700 8 500
HM 801346 X/310 38.1 82.55 29.37 106 118 6 700 8 000
HM 801346/310 38.1 82.55 29.37 106 118 6 700 8 000
LM 29748/710 38.1 65.088 18.034 53 57 8 000 10 000
LM 29749/710 38.1 65.088 18.034 53 57 8 000 10 000
LM 29749/711 38.1 65.088 19.812 53 57 8 000 10 000
30208 40 80 19.75 75.8 68 7 000 8 500
30208 R 40 80 19.75 75.8 68 7 000 8 500
30308 40 90 25.25 106 95 6 300 8 000
31308 40 90 25.25 91.1 81.5 5 600 7 500
32008 X 40 68 19 64.7 71 7 500 9 500
32208 40 80 24.75 91.6 86.5 7 000 8 500
32308 40 90 35.25 143 140 6 000 8 000
33108 40 75 26 97.5 104 7 000 9 000
33208 40 80 32 128 132 6 300 8 500
T2EE 040 40 85 33 150 150 6 700 8 000
LM 300849/811 40.987 67.975 17.5 53.6 58.5 8 000 9 500
24780/24720 41.275 76.2 22.225 84.2 86.5 7 000 9 000
3585/3525 41.275 87.312 30.162 126 132 6 300 8 000
HM 803146/110 41.275 88.9 30.162 116 127 6 000 7 500
LM 501349/310 41.275 73.431 19.558 67.6 68 7 500 9 000
LM 501349/314 41.275 73.431 21.43 67.6 68 7 500 9 000
M 802048/011 41.275 82.55 26.543 91.2 91.5 6 700 8 000
25577/25523 42.875 82.931 26.988 99.1 106 6 700 8 000
25580/25520 44.45 82.931 23.812 99.1 106 6 700 8 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
25580/25522 44.45 83.058 23.876 99.1 106 6 700 8 000
25580/25523 44.45 82.931 26.988 99.1 106 6 700 8 000
3782/3720 44.45 93.264 30.163 134 146 5 600 7 000
53178/53377 44.45 95.25 30.958 108 96.5 5 300 7 000
535/532 A 44.45 111.125 38.1 183 190 5 300 6 300
HM 803149/110 44.45 88.9 30.162 116 127 6 000 7 500
HM 903249/210 44.45 95.25 30.958 124 122 5 300 7 000
30209 45 85 20.75 81.6 76.5 6 300 8 000
30309 45 100 27.25 132 120 5 600 7 000
31309 45 100 27.25 113 102 5 000 6 700
32009 X 45 75 20 71.7 80 7 000 8 500
32209 45 85 24.75 98.7 98 6 300 8 000
32309 45 100 38.25 173 170 5 300 7 000
33109 45 80 26 104 114 6 700 8 000
33209 45 85 32 132 143 6 000 7 500
358 X/354 X 45 85 20.638 87.3 81.5 6 700 8 000
T2ED 045 45 95 36 182 186 6 000 7 000
T7FC 045 45 95 29 110 112 5 300 7 000
LM 102949/910 45.242 73.431 19.558 66 75 7 000 8 500
LM 603049/011 45.242 77.788 19.842 66.8 69.5 7 000 8 500
LM 603049/012 45.242 77.788 21.43 66.8 69.5 7 000 8 500
25590/25520 45.618 82.931 23.812 99.1 106 6 700 8 000
25590/25523 45.618 82.931 26.988 99.1 106 6 700 8 000
LM 503349/310 45.987 74.975 18 62.1 71 7 000 8 500
18690/18620 46.038 79.375 17.462 61.1 62 7 000 8 500
359 S/354 X 46.038 85 20.638 87.3 81.5 6 700 8 000
369 S/362 A 47.625 88.9 20.638 94 91.5 6 300 7 500
30210 50 90 21.75 93.1 91.5 6 000 7 500
30310 50 110 29.25 154 140 5 300 6 300
31310 50 110 29.25 131 120 4 500 6 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
32010 X 50 80 20 75.1 88 6 300 8 000
32210 50 90 24.75 101 100 6 000 7 500
32310 50 110 42.25 211 212 4 800 6 300
32310 B 50 110 42.25 196 216 4 500 6 000
32910 50 72 15 41.3 53 7 000 8 500
33010 50 80 24 84.8 102 6 300 8 000
33110 50 85 26 106 122 6 000 7 500
33210 50 90 32 142 160 5 300 7 000
JLM 104945/910 50 82 21.501 88.9 100 6 300 8 000
JM 205149/110 50 90 28 130 140 6 000 7 500
JM 205149/110 A 50 90 28 130 140 6 000 7 500
T2ED 050 50 100 36 189 200 5 600 6 700
T7FC 050 50 105 32 134 137 4 800 6 300
18790/18720 50.8 85 17.462 62.1 65.5 6 300 8 000
368 A/362 A 50.8 88.9 20.638 94 91.5 6 300 7 500
368 A/362 X 50.8 90 25 94 91.5 6 300 7 500
537/532 X 50.8 107.95 36.512 183 190 5 300 6 300
539/532 X 53.975 107.95 36.512 183 190 5 300 6 300
72212/72487 53.975 123.825 36.512 174 160 4 300 5 600
LM 806649/610 53.975 88.9 19.05 71.5 78 6 000 7 000
30211 55 100 22.75 111 106 5 300 6 700
30311 55 120 31.5 176 163 4 800 5 600
31311 55 120 31.5 149 137 4 300 5 600
32011 X 55 90 23 99.4 116 5 600 7 000
32211 55 100 26.75 130 129 5 300 6 700
32311 55 120 45.5 245 250 4 300 5 600
33011 55 90 27 111 137 5 600 7 000
33111 55 95 30 136 156 5 600 6 700
33211 55 100 35 170 190 4 800 6 300
T2ED 055 55 110 39 220 232 5 000 6 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
T7FC 055 55 115 34 155 163 4 300 5 600
387 A/382 A 57.15 96.838 21 99.9 102 5 600 6 700
39581/39520 57.15 112.712 30.162 175 204 4 500 5 600
462/453 X 57.15 104.775 30.162 150 160 5 300 6 300
6391/K-6320 59.987 135.755 53.975 353 400 4 000 5 000
30212 60 110 23.75 120 114 5 000 6 000
30312 60 130 33.5 208 196 4 300 5 300
31312 60 130 33.5 177 166 3 800 5 300
32012 X 60 95 23 101 122 5 300 6 700
32212 60 110 29.75 155 160 5 000 6 000
32312 60 130 48.5 282 290 4 000 5 300
32312 B 60 130 48.5 271 305 3 800 5 000
32912 60 85 17 53.2 75 6 000 7 000
33012 60 95 27 113 143 5 300 6 700
33112 60 100 30 144 170 5 300 6 300
33212 60 110 38 207 236 4 500 6 000
JLM 508748/710 60 95 24 103 132 5 300 6 700
T2EE 060 60 115 40 239 260 4 800 5 600
T7FC 060 60 125 37 190 204 4 000 5 300
395/394 A 63.5 110 22 108 118 4 800 6 000
39585/39520 63.5 112.712 30.162 175 204 4 500 5 600
3982/3920 63.5 112.712 30.163 152 183 4 800 5 600
30213 65 120 24.75 141 134 4 500 5 600
30313 65 140 36 240 228 4 000 4 800
31313 65 140 36 203 193 3 600 4 800
32013 X 65 100 23 103 127 5 000 6 000
32213 65 120 32.75 186 193 4 500 5 600
32313 65 140 51 323 335 3 600 4 800
32313 B 65 140 51 305 345 3 600 4 800
32913 65 90 17 54.7 80 5 600 6 700
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
33013 65 100 27 119 153 5 000 6 300
33113 65 110 34 175 208 4 800 5 600
33213 65 120 41 239 270 4 000 5 300
JLM 710949/910 65 105 24 122 137 5 000 6 000
JM 511946/910 65 110 28 152 183 4 800 5 600
T2DD 065 65 110 31 170 193 4 800 6 000
T7FC 065 65 130 37 194 216 3 800 5 000
6379/K-6320 65.088 135.755 53.975 353 400 4 000 5 000
395 A/394 A 66.675 110 22 108 118 4 800 6 000
395 S/394 A 66.675 110 22 108 118 4 800 6 000
39590/39520 66.675 112.712 30.162 175 204 4 500 5 600
3984/3920 66.675 112.712 30.162 152 183 4 800 5 600
6386/K-6320 66.675 135.755 53.975 353 400 4 000 5 000
482/472 69.85 120 29.795 163 186 4 500 5 300
566/563 69.85 127 36.512 217 255 4 300 5 000
30214 70 125 26.25 155 156 4 300 5 300
30314 70 150 38 271 260 3 800 4 500
31314 70 150 38 229 220 3 400 4 500
32014 X 70 110 25 125 153 4 500 5 600
32214 70 125 33.25 195 208 4 300 5 300
32314 70 150 54 363 380 3 400 4 500
32914 70 100 20 85.8 112 5 000 6 000
33014 70 110 31 159 196 4 800 5 600
33114 70 120 37 211 250 4 300 5 300
33214 70 125 41 247 285 3 800 5 000
T2ED 070 70 130 43 289 325 4 000 5 000
T7FC 070 70 140 39 219 240 3 400 4 500
33281/33462 71.438 117.475 30.162 152 190 4 500 5 300
H 715345/311 71.438 136.525 46.038 273 355 3 800 4 500
567/563 73.025 127 36.512 217 255 4 300 5 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
30215 75 130 27.25 171 176 4 000 5 000
30315 75 160 40 301 290 3 400 4 300
31315 75 160 40 255 245 3 200 4 300
32015 X 75 115 25 130 163 4 300 5 300
32215 75 130 33.25 197 212 4 000 5 000
32315 75 160 58 416 440 3 200 4 300
32315 B 75 160 58 410 475 3 200 4 000
32915 75 105 20 86.8 116 4 800 5 600
33015 75 115 31 167 228 4 300 5 300
33115 75 125 37 216 265 4 000 5 000
33215 75 130 41 255 300 3 600 4 800
JH 415647/610 75 145 51 380 450 3 600 4 500
JM 714249/210 75 120 31 170 216 4 300 5 300
42687/42620 76.2 127 30.162 171 204 4 000 5 000
47678/47620 76.2 133.35 33.338 202 260 3 800 4 800
575/572 76.2 139.992 36.512 227 280 3 800 4 500
34306/34478 77.788 121.442 24.608 115 134 4 300 5 300
42690/42620 77.788 127 30.163 171 204 4 000 5 000
30216 80 140 28.25 184 183 3 800 4 800
30316 80 170 42.5 333 320 3 200 4 000
31316 80 170 42.5 276 265 3 000 4 000
32016 X 80 125 29 168 216 4 000 5 000
32216 80 140 35.25 228 245 3 800 4 500
32316 80 170 61.5 404 500 3 000 4 000
32916 80 110 20 89.7 125 4 500 5 600
33016 80 125 36 207 285 4 000 5 000
33116 80 130 37 221 280 4 000 4 800
33216 80 140 46 308 375 3 400 4 500
JM 515649/610 80 130 35 216 275 4 000 4 800
580/572 82.55 139.992 36.512 227 280 3 800 4 500
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
663/653 82.55 146.05 41.275 270 320 3 600 4 300
749 A/742 82.55 150.089 44.45 351 405 3 600 4 300
30217 85 150 30.5 216 220 3 600 4 300
30317 85 180 44.5 372 365 3 000 3 800
31317 85 180 44.5 297 285 2 800 3 800
32017 X 85 130 29 171 224 3 800 4 800
32217 85 150 38.5 263 285 3 600 4 300
32317 85 180 63.5 435 530 2 800 3 800
32917 85 120 23 115 156 4 000 5 000
33017 85 130 36 223 310 3 800 4 800
33117 85 140 41 268 340 3 600 4 500
33217 85 150 49 353 430 3 200 4 300
T7FC 085 85 170 48 333 380 2 800 3 800
497/492 A 85.725 133.35 30.163 178 220 3 800 4 500
593/592 A 88.9 152.4 39.688 237 305 3 400 4 300
6580/6535 88.9 161.925 53.975 404 510 3 200 4 000
HM 218248/210 89.975 146.975 40 280 355 3 400 4 300
30218 90 160 32.5 240 245 3 400 4 000
30318 90 190 46.5 353 400 2 600 3 600
31318 90 190 46.5 283 315 2 400 3 400
32018 X 90 140 32 208 270 3 600 4 300
32218 90 160 42.5 309 340 3 400 4 000
32318 90 190 67.5 487 610 2 600 3 600
32918 90 125 23 119 166 4 000 4 800
33018 90 140 39 266 355 3 600 4 500
33118 90 150 45 310 390 3 400 4 300
33218 90 160 55 415 520 3 000 4 000
6581 X/6535 90 161.925 53.975 404 510 3 200 4 000
JM 718149 A/110 90 145 35 246 305 3 600 4 300
JM 718149/110 90 145 35 246 305 3 600 4 300
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
598/592 A 92.075 152.4 39.688 237 305 3 400 4 300
30219 95 170 34.5 266 275 3 200 3 800
30319 95 200 49.5 353 390 2 600 3 400
31319 95 200 49.5 314 355 2 400 3 400
32019 X 95 145 32 206 270 3 400 4 300
32219 95 170 45.5 348 390 3 200 3 800
32319 95 200 71.5 535 670 2 400 3 400
32919 95 130 23 121 173 3 800 4 500
33019 95 145 39 272 375 3 400 4 300
33219 95 170 58 460 560 2 800 3 800
594 A/592 A 95.25 152.4 39.688 237 305 3 400 4 300
594/592 A 95.25 152.4 39.688 237 305 3 400 4 300
683/672 95.25 168.275 41.275 288 365 3 000 3 800
HM 220149/110 99.975 156.975 42 303 400 3 200 4 000
30220 100 180 37 304 320 3 000 3 600
30320 100 215 51.5 431 490 2 400 3 200
31320 X 100 215 56.5 399 465 2 200 3 000
32020 X 100 150 32 209 280 3 200 4 000
32220 100 180 49 390 440 3 000 3 600
32320 100 215 77.5 617 780 2 200 3 200
32920 100 140 25 147 204 3 400 4 300
33020 100 150 39 278 390 3 400 4 000
33220 100 180 63 532 655 2 600 3 600
T2EE 100 100 165 47 383 480 3 200 3 800
T4CB 100 100 145 24 154 190 3 400 4 300
687/672 101.6 168.275 41.275 288 365 3 000 3 800
HH 224335/310 101.6 212.725 66.675 619 830 2 200 3 000
30221 105 190 39 333 355 2 800 3 400
30321 105 225 53.5 462 530 2 200 3 000
32021 X 105 160 35 248 335 3 200 3 800
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
32221 105 190 53 443 510 2 800 3 400
32321 105 225 81.5 645 815 2 000 3 000
32921 105 145 25 149 212 3 400 4 000
33021 105 160 43 303 430 3 200 3 800
56425/56650 107.95 165.1 36.512 256 355 3 000 3 600
64432/64708 109.975 179.975 41.275 307 415 2 800 3 400
30222 110 200 41 327 405 2 400 3 200
30322 110 240 54.5 507 585 2 200 2 800
31322 X 110 240 63 491 585 1 900 2 800
32022 X 110 170 38 288 390 3 000 3 600
32222 110 200 56 491 570 2 600 3 200
32322 110 240 84.5 675 830 1 900 2 800
32922 110 150 25 154 224 3 200 4 000
33022 110 170 47 343 500 3 000 3 600
33122 110 180 56 455 630 2 800 3 400
64450/64700 114.3 177.8 41.275 307 415 2 800 3 400
68450/68712 114.3 180.975 34.925 227 280 2 800 3 400
938/932 114.3 212.725 66.675 626 765 2 600 3 200
30224 120 215 43.5 417 465 2 400 3 000
30324 120 260 59.5 601 710 2 000 2 600
31324 X 120 260 68 578 695 1 700 2 400
32024 X 120 180 38 299 415 2 800 3 400
32224 120 215 61.5 573 695 2 400 3 000
32324 120 260 90.5 855 1 120 1 800 2 600
32924 120 165 29 204 305 3 000 3 600
33024 120 180 48 356 540 2 800 3 400
T4CB 120 120 170 27 195 250 2 800 3 600
48290/48220 127 182.562 39.688 281 440 2 600 3 200
30226 130 230 43.75 451 490 2 200 2 800
30326 130 280 63.75 679 800 1 800 2 400
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
31326 X 130 280 72 647 780 1 600 2 400
32026 X 130 200 45 388 540 2 400 3 000
32226 130 230 67.75 590 830 2 000 2 800
32326 130 280 98.75 1 019 1 340 1 600 2 400
32926 130 180 32 245 365 2 600 3 200
33026 130 200 55 470 680 2 400 3 000
67391/67322 133.35 196.85 46.038 395 585 2 400 3 000
L 327249/210 133.35 177.008 25.4 166 280 2 600 3 200
HM 231132/110 139.7 236.538 57.15 629 850 2 200 2 600
30228 140 250 45.75 451 570 1 900 2 600
31328 X 140 300 77 737 900 1 500 2 200
32028 X 140 210 45 404 585 2 400 2 800
32228 140 250 71.75 691 1 000 1 900 2 600
32328 140 300 107.75 1 220 1 660 1 600 2 200
32928 140 190 32 252 390 2 600 3 000
T4CB 140 140 195 29 241 325 2 400 3 000
30230 150 270 49 455 560 1 800 2 400
30330 150 320 72 879 1 060 1 600 2 000
31330 X 150 320 82 832 1 020 1 400 2 000
32030 X 150 225 48 456 655 2 200 2 600
32230 150 270 77 782 1 140 1 700 2 400
32930 150 210 38 346 530 2 200 2 800
33030 150 225 59 487 865 2 000 2 600
T4DB 150 150 210 32 287 390 2 200 2 800
LM 330448/410 152.4 203.2 41.275 251 480 2 400 2 800
L 432348/310 158.75 205.583 23.812 168 280 2 200 2 800
L 432349/310 158.75 205.583 23.813 168 280 2 200 2 800
30232 160 290 52 566 735 1 600 2 200
30332 160 340 75 970 1 180 1 500 2 000
32032 X 160 240 51 532 780 2 000 2 400
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
32232 160 290 84 934 1 400 1 600 2 200
32932 160 220 38 349 540 2 200 2 600
T4DB 160 160 220 32 257 415 2 000 2 600
HH 437549/510 165.1 336.55 92.075 1 198 1 700 1 400 1 900
30234 170 310 57 657 865 1 500 2 000
32034 X 170 260 57 625 915 1 900 2 200
32234 170 310 91 1 075 1 630 1 500 2 000
32934 170 230 38 351 585 2 000 2 400
T4DB 170 170 230 32 307 440 2 000 2 600
M 336948/912 178.595 265.112 51.595 532 880 1 700 2 200
M 336949/912 179.934 265.112 51.595 532 880 1 700 2 200
30236 180 320 57 629 815 1 500 2 000
32036 X 180 280 64 793 1 160 1 700 2 200
32236 180 320 91 1 069 1 630 1 400 1 900
32936 180 250 45 435 735 1 900 2 200
T4DB 180 180 240 32 309 450 2 000 2 400
87737/87111 187.325 282.575 50.8 427 695 1 600 2 000
30238 190 340 60 763 1 000 1 400 1 800
32038 X 190 290 64 806 1 200 1 600 2 000
32238 190 340 97 1 267 1 930 1 300 1 800
32938 190 260 45 443 765 1 800 2 200
JM 738249/210 190 260 46 443 765 1 800 2 200
87750/87111 190.5 282.575 50.8 427 695 1 600 2 000
LL 639249/210 196.85 241.3 23.812 189 315 1 900 2 400
67981/67919 198.298 279.4 46.038 465 830 1 600 2 000
67982/67919 199.949 279.4 46.038 465 830 1 600 2 000
30240 200 360 64 845 1 120 1 300 1 700
32040 X 200 310 70 800 1 370 1 400 1 900
32240 200 360 104 1 300 2 000 1 300 1 700
32940 200 280 51 588 950 1 700 2 000
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
T4DB 200 200 270 37 401 600 1 700 2 200
67983/67920 203.2 282.575 46.038 465 830 1 600 2 000
67985/67920 206.375 282.575 46.038 465 830 1 600 2 000
H 242649/610 206.375 336.55 98.425 1 230 2 160 1 300 1 800
30244 220 400 72 1 059 1 400 1 200 1 600
32044 X 220 340 76 955 1 660 1 300 1 700
32244 220 400 114 1 720 2 700 1 100 1 500
32944 220 300 51 601 1 000 1 500 1 900
LM 245846/810 230.188 317.5 47.625 556 980 1 300 1 800
LM 245848/810 231.775 317.5 47.625 556 980 1 300 1 800
32048 X 240 360 76 989 1 800 1 200 1 600
32248 240 440 127 1 918 3 350 1 000 1 300
32948 240 320 51 624 1 080 1 400 1 700
T4EB 240 240 320 42 458 815 1 300 1 700
HH 953749/710 254 533.4 133.35 2 012 2 750 800 1 100
M 349547/510 255.6 342.9 57.15 698 1 400 1 200 1 600
M 249747/710 257.175 358.775 71.438 1 030 1 760 1 300 1 600
M 349549/510 257.175 342.9 57.15 698 1 400 1 200 1 600
32052 X 260 400 87 1 241 2 200 1 100 1 400
32252 260 480 137 2 340 3 650 900 1 200
32952 260 360 63.5 910 1 530 1 300 1 600
BT1B 332973 260 540 109 2 120 3 050 850 1 300
38880/38820 263.525 325.438 28.575 273 550 1 400 1 700
32056 X 280 420 87 1 288 2 360 1 000 1 300
32256 280 500 137 2 410 3 900 850 1 200
L 555249/210 292.1 374.65 47.625 539 1 140 1 100 1 500
32060 X 300 460 100 1 644 3 000 900 1 200
32260 J2/HA1 300 540 149 2 750 4 750 800 1 100
32960 300 420 76 1 126 2 240 950 1 300
LM 757049/010 304.8 406.4 63.5 775 1 700 1 000 1 300
Designation Principal dimensions Basic load ratings Speed ratings
CoatMaster dynamic static Reference speed Limiting speed
d[mm] D[mm] T[mm] C[kN] C0[kN] [r/min] [r/min]
HM 259048/010/HA4 317.5 447.675 85.725 1 363 2 700 900 1 200
32064 X 320 480 100 1 663 3 100 850 1 100
32264 320 580 159 3 353 5 500 750 1 000
32964 320 440 76 1 156 2 360 900 1 200
HM 261049/010 333.375 469.9 90.488 1 428 2 850 850 1 200
32968 340 460 76 1 163 2 400 850 1 200
LM 361649/610 342.9 450.85 66.675 1 000 2 200 900 1 200
LM 361649 A/610 343.154 450.85 66.675 1 000 2 200 900 1 200
HM 262749/710 346.075 488.95 95.25 1 533 3 150 850 1 100
431884 A 355.65 482.65 60.32 572 1 200 850 1 300
32972 360 480 76 1 191 2 550 800 1 100
L 865547/512 381 479.425 49.213 638 1 500 800 1 100
LM 567949/910/HA1 406.4 549.275 85.725 1 467 3 050 700 950
LM 869448/410 431.8 571.5 74.612 1 145 2 550 670 900
L 570649/610 457.2 573.088 74.612 1 205 3 000 670 900
LM 272235/210 457.2 615.95 85.725 1 593 3 800 600 800
LM 770949/910 457.2 603.25 85.725 1 541 3 400 630 850
BT1-8003/HA1 479.425 717.55 136.525 3 030 6 800 530 800
BT1B 332529/HA1 479.425 679.45 128.588 2 750 6 300 560 850
EE 243190/243250 482.6 634.873 80.962 1 584 3 650 600 800
LM 772748/710/HA1 488.95 634.873 84.138 1 450 3 650 600 850
EE 243196/243250/HA2 498.475 634.873 80.962 1 470 3 650 600 850
EE 982051/982900 520.7 736.6 88.9 1 650 3 350 530 750
BT1B 328017/HA4 536.575 820 152 3 910 7 800 450 670
M 276449/410 536.575 761.873 146.05 3 360 8 000 500 670
L 476549 AX/510 549.199 692.15 80.963 1 340 3 450 530 1 100
EE 843220/843290 558.8 736.6 88.108 1 963 4 150 500 670
LM 377449/410 558.8 736.6 104.775 2 482 5 700 500 670
BT1B 334140/HA4 660.4 1 000 152.4 4 652 9 500 360 480
L 281147/110 660.4 812.8 95.25 2 086 5 600 430 560
BT1B 332787/HA4 680 1 000 190 5 610 12 700 360 500
BT1B 332705/HA4 682.625 1 080 200 6 710 13 200 320 480
BT1B 332890/HA1 710 950 113 2 860 6 550 360 530
LM 283649/610/HA1 749.3 990.6 159.5 4 903 12 000 340 450
LL 483449/418 762 889 69.85 1 320 3 800 380 500
EE 763330/763410 838.2 1 041.4 93.663 2 140 5 200 320 430
BT1B 328214/HA5 900 1 180 122 3 960 9 150 260 360
BT1-8010/HA4 1 270 1 465 100 3 407 10 800 180 240

What is a Bearing and its types?

The basic structure of the bearing: the inside of the bearing is generally composed of an inner ring, an outer ring, rolling elements and a cage. For sealed bearings, there are lubricants or greases, sealing or shielded.

Rolling bearing part:

The part where the rolling elements roll on the ring is called the raceway, and the raceway of the ball bearing is also called the raceway. The rolling elements are between the raceways of the inner ring and the outer ring. The rolling elements include steel balls, cylindrical rollers, needle rollers, tapered rollers and spherical rollers. The size and quantity of the rolling elements directly affect the speed and load ability of the bearing.

Rolling bearings have a variety of structural forms, each type of bearing has its own characteristics, their common advantages are:

  1. The starting friction is small, and the difference between the starting friction and the dynamic friction is also small.
  2. International dimensions and interchangeability, suitable for mass production
  3. The wear is less than that of ordinary sliding bearings, and the mechanical accuracy can be maintained for a long time.
  4. Easy to lubricate, less lubricant consumption and low maintenance cost
  5. It can be easily used at high or low temperature
  6. The surrounding components matched with the bearing have a simple structure, which is convenient for inspection and maintenance
  7. The rigidity of the bearing can be improved by applying preload
  8. Except for a few bearings (such as thrust bearings), general bearings can bear radial load and axial load at the same time

Bearings are classified according to the load direction or the nominal contact angle that they can bear.

Radial bearing — mainly used for rolling bearing bearing radial load, its contact angle ranges from 0 degrees to 45 degrees, and is divided into:

— Radial Contact Bearings — Radial Bearings with a Contact Angle of 0°

— Angular Contact Radial Bearings — Bearings with angular contact greater than 0° to 45°

Thrust bearing – mainly used for rolling bearings bearing axial load, according to the different contact angle is divided into

— Axial contact bearing Thrust bearing with a contact angle of 90 degrees

— Angular contact thrust bearing, the contact angle is greater than 45 degrees and less than 90 degrees

 

Bearings are classified according to the type of rolling elements

Ball bearing — the rolling elements are balls

Ball bearings are divided into deep groove ball bearings, self-aligning ball bearings, angular contact ball bearings, thrust ball bearings

Roller bearing — the rolling elements are rollers

Roller bearings are divided into

Cylindrical Roller Bearing–The rolling element is a cylindrical roller bearing, and the ratio of the length to the diameter of the cylindrical roller is less than or equal to 3,

Needle Roller Bearings — Bearings in which the rolling elements are needle rollers

Tapered Roller Bearings — Bearings whose rolling elements are tapered rollers

Spherical Roller Bearings — Bearings whose rolling elements are spherical rollers

 

Bearings are classified according to the self-aligning function

1) Self-aligning bearing — the raceway is spherical, which can adapt to the angular deviation and angular motion between the axis lines of the two raceways

2) Non-aligning bearings — bearings that can resist the angular deviation of the raceway axis

 

Bearings are classified according to the number of rolling elements row.

1) Single row bearing — bearing with one row of rolling elements

2) Double row bearing — bearing with two rows of rolling elements

3) Multi-row bearings — bearings with more than two rows, such as three-row, four-row bearings

 

Bearings are classified according to whether their parts can be separated or not

1) Separable bearing — bearing with separable parts

2) Non-separable bearing — a bearing in which the rings cannot be freely separated after the bearing is finally assembled

 

And CoatMaster also can supply the other kinds of bearings as follows:

Double Row Deep Groove Ball Bearings Medical device bearing
Pillow Block Bearings Linear Motion Guide
Insert Ball Bearings (Y-bearings) High temperature Bearings
Double Row Angular Contact Ball Bearings Low temperature bearings
Angular Contact Thrust Ball Bearings Bearing for Agricultural machinery
Thin Section Bearings Vibrating screen Bearings
Full Complement Cylindrical Roller Bearings Paper making machinery bearings
Inch Tapered Roller Bearings Woodworking machinery bearing
Double Row Tapered Roller Bearings Industrial fan bearing
Sealed Spherical Roller Bearings Excavator bearing
Toroidal Roller Bearings Rolling Mill Bearings
Cam Roller Bearings Wheel Hub bearings
Support Roller Bearings Robot bearing
Cam Followers Bearing forklift bearing
Cylindrical Roller Thrust Bearings Automobile bearing
Needle Roller Thrust Bearings King Pin Bearings
Tapered Roller Thrust Bearings Clutch release bearings
Spherical Roller Thrust Bearings Transmission bearings/
Cross Roller Bearings bearing for speed changer
Super Precision Bearings Electric motor bearings
Double Direction Angular Contact Thrust Ball Bearings Bearings for household appliances
High precision Axial-radial Cylindrical Roller Bearings Instrument bearing
Angular contact thrust ball bearings for screw drives internal-combustion engine bearing
Linear Motion Guide construction machinery bearings
Linear Guideway railway vehicle bearing
High temperature Bearings and Bearing Units Handling machinery bearing
Electrially Insulated Bearings Machine tool spindle bearing
High temperature Bearings and Bearing Units Bearing for High frequency motor
Bearing with Solid Oil High speed bearing for Aviation turbojet engine
Ball bearing Units Bearing for Centrifugal separator
Plummer Block Housing Bearing for Differential pinion shaft
Super Precision Bearings Oil pump Bearings
Hybrid Bearings Roots blower Bearings
Full Ceramic Bearings Air compressor Bearings
Sensor Bearing Units Fuel injection pump Bearings
Slewing bearings Printing machinery
Spherical Plain Bearings and Rod Ends Truck Wheel bearings
High precision Bearings Concrete Mixer Bearings
High speed Bearings Planetary Gearbox Bearings
Heavy duty bearings Shearer bearing for mining industry
bronze alloy bearings Crescent Swing bearing for Hydraulic Pump
Self lubricating Bearing Concrete Mixer Truck Reducer Bearings
Slide Bearing