What are Tapered Roller Bearings?

 

Tapered roller bearings are separate bearings. Both the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into single, double and four-row tapered roller bearings according to the number of rollers installed. Single-row tapered roller bearings can support radial loads and axial loads in one direction. When the bearing is subjected to a radial load, an axial component will be generated, so when another bearing that can bear the axial force in the opposite direction is needed to be balanced.

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.

The outer ring (or inner ring) of a double-row tapered roller bearing is a whole. The two small inner end faces of the inner ring (or outer ring) are close to each other, and there is a spacer in the middle. The clearance is adjusted by the thickness of the spacer. The thickness of the spacer can also be used to adjust the pre-interference of the double-row tapered roller bearing.

Four-row tapered roller bearings, the performance of this bearing is basically the same as double-row tapered roller bearings, but the radial load is greater than double-row tapered roller bearings, the limit speed is slightly lower, mainly used in heavy machinery.

 

The basic dimensions of China tapered roller bearings are listed in the dimensional data sheet,

Single-row tapered roller bearings:

Inner diameter size range: 20mm ~ 1270mm

Outer diameter range: 40mm ~ 1465mm

Width size range: 15mm ~ 240mm

 

Double-row tapered roller bearings:

Inner diameter size range: 38mm ~ 1560mm

Outer diameter range: 70mm ~ 1800mm

Width size range: 50mm ~ 460mm

 

Four-row tapered roller bearings:

Inner diameter size range: 130mm ~ 1600mm

Outer diameter size range: 200mm ~ 2000mm

Width size range: 150mm ~ 1150mm

Features and benefits of Tapered Roller Bearings

  • Low friction
    The optimized roller end design and surface finish on the flangepromote lubricant film formation, resulting in lower friction. This also reduces frictional heat and flange wear. In addition, the bearings can better maintain preload and run at reduced noise levels.
  • Long service life
    The crowned raceway profiles of basic design bearings and the logarithmic raceway profiles of Tapered Roller Bearings optimize the load distribution along the contact surfaces, reduce stress peaks at the roller ends, and reduce the sensitivity to misalignment and shaft deflection compared with conventional straight raceway profiles.
  • Enhanced operational reliability
    Optimized surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.
  • Consistency of roller profiles and sizes
    The rollers incorporated in CoatMastertapered roller bearings are manufactured to such close dimensional and geometrical tolerances that they are practically identical. This provides optimal load distribution, reduces noise and vibration, and enables preload to be set more accurately.
  • Rigid bearing application
    A single row tapered roller bearing is typically adjusted against a second tapered roller bearing. By applying a preload, a rigid bearing application can be achieved.
  • Running-in period with reduced temperature peaks
    Tapered roller bearings typically have a running-in period, during which a conventional design tapered roller bearing experiences a significant amount of friction, resulting in wear. This effect is noticed as a temperature spike. With CoatMaster tapered roller bearing designs, friction, frictional heat and wear are significantly reduced, provided the bearings are mounted and lubricated correctly.
  • Separable and interchangeable
    The inner ring with roller and cage assembly (cone) can be mounted separately from the outer ring (cup). Furthermore, the separable componentsare interchangeable. This facilitates mounting, dismounting and also maintenance inspection routines.

Spherical Roller Thrust Bearings are the same with spherical roller bearing, both of them are all self-aligning design, the raceway surface of the seat is a sphere which centered on a point and be coincident with the center axis of the bearing. and also the rollers of Spherical Roller Thrust Bearings are spherical, Therefore, it has self-aligning function, Less sensitive to concentricity and shaft deflection.

Thrust roller bearings are used to support axial and radial combined loads with axial loads, but radial loads must not exceed 55% of axial loads. Compared with other thrust roller bearings, this type of bearing has lower friction factor, higher speed and has self-aligning performance.

The roller of the 29000 type spherical roller thrust bearing is an asymmetrical spherical roller, which can reduce the relative sliding of the roller and the raceway during operation, and the roller has a long length , a large diameter, a large number of rollers, a high load capacity , and is usually oil lubricated . Individual low speed conditions can be lubricated with grease. When designing and selecting, it should be preferred;

Advantages of Spherical Roller Thrust Bearings

  • Higher performance bearingarrangements: more than double the rating life due to basic dynamic load ratings that are up to 30 % higher than before , higher static load safety factor due to basic static load ratings nearly 10 % higher, reduced wear due to improved surface quality and optimum lubricant film formation, higher speed capability due to reduced friction and operating temperature as well as special cage designs.

This is all made possible by longer rolling elements, optimised contact geometry and bearing kinematics, improved surfaces of the rolling contact partners for an optimised lubricant film, cages with better guidance of rollers and lubricant as well as closer dimensional and running tolerances.

Designation Principal dimensions Basic load ratings Fatigue load limit Speed ratings
CoatMaster Bearing dynamic static Reference speed Limiting speed
d[mm] D[mm] H[mm] C[kN] C0[kN] Pu[kN] [r/min] [r/min]
29412 E 60 130 42 390 915 114 2 800 5 000
29413 E 65 140 45 455 1 080 137 2 600 4 800
29414 E 70 150 48 520 1 250 153 2 400 4 300
29415 E 75 160 51 600 1 430 173 2 400 4 000
29416 E 80 170 54 670 1 630 193 2 200 3 800
29317 E 85 150 39 380 1 060 129 2 400 4 000
29417 E 85 180 58 735 1 800 212 2 000 3 600
29318 E 90 155 39 400 1 080 132 2 400 4 000
29418 E 90 190 60 815 2 000 232 1 900 3 400
29320 E 100 170 42 465 1 290 156 2 200 3 600
29420 E 100 210 67 980 2 500 275 1 700 3 000
29322 E 110 190 48 610 1 730 204 1 900 3 200
29422 E 110 230 73 1 180 3 000 325 1 600 2 800
29324 E 120 210 54 765 2 120 245 1 700 2 800
29424 E 120 250 78 1 370 3 450 375 1 500 2 600
29326 E 130 225 58 865 2 500 280 1 600 2 600
29426 E 130 270 85 1 560 4 050 430 1 300 2 400
29328 E 140 240 60 980 2 850 315 1 500 2 600
29428 E 140 280 85 1 630 4 300 455 1 300 2 400
29230 E 150 215 39 408 1 600 180 1 800 2 800
29330 E 150 250 60 1 000 2 850 315 1 500 2 400
29430 E 150 300 90 1 860 5 100 520 1 200 2 200
29332 E 160 270 67 1 180 3 450 375 1 300 2 200
29432 E 160 320 95 2 080 5 600 570 1 100 2 000
29334 E 170 280 67 1 200 3 550 365 1 300 2 200
29434 E 170 340 103 2 360 6 550 640 1 100 1 900
29236 E 180 250 42 495 2 040 212 1 600 2 600
29336 E 180 300 73 1 430 4 300 440 1 200 2 000
29436 E 180 360 109 2 600 7 350 710 1 000 1 800
29338 E 190 320 78 1 630 4 750 490 1 100 1 900
Designation Principal dimensions Basic load ratings Fatigue load limit Speed ratings
CoatMaster Bearing dynamic static Reference speed Limiting speed
d[mm] D[mm] H[mm] C[kN] C0[kN] Pu[kN] [r/min] [r/min]
29438 E 190 380 115 2 850 8 000 765 950 1 700
29240 E 200 280 48 656 2 650 285 1 400 2 200
29340 E 200 340 85 1 860 5 500 550 1 000 1 700
29440 E 200 400 122 3 200 9 000 850 850 1 600
29244 E 220 300 48 690 3 000 310 1 300 2 200
29344 E 220 360 85 2 000 6 300 610 1 000 1 700
29444 E 220 420 122 3 350 9 650 900 850 1 500
29248 240 340 60 799 3 450 335 1 100 1 800
29348 E 240 380 85 2 040 6 550 630 1 000 1 600
29448 E 240 440 122 3 400 10 200 930 850 1 500
29252 260 360 60 817 3 650 345 1 100 1 700
29352 E 260 420 95 2 550 8 300 780 850 1 400
29452 E 260 480 132 4 050 12 900 1 080 750 1 300
29256 280 380 60 863 4 000 375 1 000 1 700
29356 E 280 440 95 2 550 8 650 800 850 1 400
29456 E 280 520 145 4 900 15 300 1 320 670 1 200
29260 300 420 73 1 070 4 800 465 900 1 400
29360 E 300 480 109 3 100 10 600 930 750 1 200
29460 E 300 540 145 5 000 16 600 1 340 670 1 200
29264 320 440 73 1 110 5 100 465 850 1 400
29364 E 320 500 109 3 350 11 200 1 000 750 1 200
29464 E 320 580 155 5 700 19 000 1 530 600 1 100
29268 340 460 73 1 130 5 400 480 850 1 300
29368 340 540 122 2 710 11 000 950 600 1 100
29468 E 340 620 170 6 700 22 400 1 760 560 1 000
29272 360 500 85 1 460 6 800 585 750 1 200
29372 360 560 122 2 760 11 600 980 600 1 100
29472 EM 360 640 170 6 200 21 200 1 630 560 950
29276 380 520 85 1 580 7 650 655 700 1 100
29376 380 600 132 3 340 14 000 1 160 530 1 000
Designation Principal dimensions Basic load ratings Fatigue load limit Speed ratings
CoatMaster Bearing dynamic static Reference speed Limiting speed
d[mm] D[mm] H[mm] C[kN] C0[kN] Pu[kN] [r/min] [r/min]
29476 EM 380 670 175 6 800 24 000 1 860 530 900
29280 400 540 85 1 610 8 000 695 700 1 100
29380 400 620 132 3 450 14 600 1 200 530 950
29480 E 400 710 185 7 650 26 500 1 960 480 850
29480 EM 400 710 185 7 650 26 500 1 960 480 850
29284 420 580 95 1 990 9 800 815 630 1 000
29384 420 650 140 3 740 16 000 1 290 500 900
29484 EM 420 730 185 7 800 27 500 2 080 480 850
29288 440 600 95 2 070 10 400 850 630 1 000
29388 EM 440 680 145 5 200 19 300 1 560 530 850
29488 EM 440 780 206 9 000 32 000 2 320 430 750
29292 460 620 95 2 070 10 600 865 600 950
29392 460 710 150 4 310 19 000 1 500 450 800
29492 EM 460 800 206 9 300 33 500 2 450 430 750
29296 480 650 103 2 350 11 800 950 560 900
29496 EM 480 850 224 9 550 39 000 2 800 340 670
292/500 500 670 103 2 390 12 500 1 000 560 900
293/500 500 750 150 4 490 20 400 1 560 430 800
294/500 EM 500 870 224 9 370 40 000 2 850 340 670
292/530 EM 530 710 109 3 110 15 300 1 220 530 850
293/530 EM 530 800 160 5 870 26 500 2 080 400 750
294/530 EM 530 920 236 10 500 44 000 3 100 320 630
292/560 560 750 115 2 990 16 000 1 220 480 800
294/560 EM 560 980 250 12 000 51 000 3 550 300 560
292/600 EM 600 800 122 3 740 18 600 1 460 450 700
294/600 EM 600 1 030 258 13 100 56 000 4 000 280 530
292/630 EM 630 850 132 4 770 23 600 1 800 400 670
293/630 EM 630 950 190 8 450 38 000 2 900 320 600
294/630 EM 630 1 090 280 14 400 62 000 4 150 260 500
294/670 EM 670 1 150 290 15 400 68 000 4 500 240 450
Designation Principal dimensions Basic load ratings Fatigue load limit Speed ratings
CoatMaster Bearing dynamic static Reference speed Limiting speed
d[mm] D[mm] H[mm] C[kN] C0[kN] Pu[kN] [r/min] [r/min]
293/710 EM 710 1 060 212 9 950 45 500 3 400 280 500
294/710 EF 710 1 220 308 17 600 76 500 5 000 220 430
294/750 EF 750 1 280 315 18 700 85 000 5 500 200 400
292/800 EM 800 1 060 155 6 560 34 500 2 550 320 530
293/800 EM 800 1 180 230 11 300 55 000 3 900 240 450
294/800 EF 800 1 360 335 20 200 93 000 5 850 190 360
294/850 EF 850 1 440 354 23 900 108 000 7 100 170 340
294/900 EF 900 1 520 372 26 700 122 000 7 200 160 300
294/950 EF 950 1 600 390 28 200 132 000 7 800 140 280
294/1000 EF 1 000 1 670 402 31 100 140 000 8 650 130 260
294/1060 EF 1 060 1 770 426 33 400 156 000 8 500 120 240

CoatMaster can produce China Top Quality Spherical Roller Bearings, Brass cage and pressed cage are all available. for small quantity normally delivery date is 3-7days, OEM service is acceptable as Customers’ requested. CoatMaster Adopt the High quality Chrome Steel material and advanced technology standard. Quality Always comes first. and then save the cost of bearings. Choose CoatMaster, then you will find the best soluation for your applications.

What is the miniature thrust ball bearings?

Miniature Thrust Ball Bearings are only one kinds of Thrust Ball Bearings, But smaller size than normally thrust ball bearings, It’s a separable bearing with a contact angle of 90, which can be installed separately and can only bear the axial load. The limit speed of the miniature one-way thrust bearing is low, and the steel ball is squeezed to the outside of the raceway by centrifugal force, which is easy to be scratched, but it is not suitable for high-speed operation. One-way miniature thrust bearing can bear one-way axial load, and two-way bearing can bear two-way axial load. Miniature Thrust ball bearing with spherical seat ring has self-aligning performance, which can eliminate the influence of installation error.

Miniature & small thrust ball bearings list

Dimensions - 51201Abutment dimensions - 51201

EASIER Number Raceway type bore diameter of shaft washer(d) outer diamter of housing washer(D) thickness(H) Balls Qty/pc Balls Size/mm Weight/g
F2-6 flat raceway 2 6 3 6 1 0.6
F2.5-6M groove raceway 2.5 6 3 6 1.2 0.8
F2.5-7 flat raceway 2.5 7 3.5 6 1.2 0.9
F2.5-7M groove raceway 2.5 7 3.5 7 1.3 0.8
F3-6M groove raceway 3 6 2.8 6 1 0.85
F3-8 flat raceway 3 8 3.5 6 1.588 0.6
F3-8M groove raceway 3 8 3.5 6 1.588 0.9
F4-8M groove raceway 4 8 3.3 7 1.3 0.9
F4-9 flat raceway 4 9 4 6 1.588 1.5
F4-9M groove raceway 4 9 4 6 1.588 1.2
F4-10 flat raceway 4 10 4 6 1.588 2
F4-10M groove raceway 4 10 4 6 1.588 1.5
F5-10M groove raceway 5 10 4 7 1.588 1.6
F5-11 flat raceway 5 11 4.5 7 1.588 2.4
F5-11M groove raceway 5 11 4.5 7 1.588 1.9
F5-12M groove raceway 5 12 4 7 1.588 2.1
F6-12 flat raceway 6 12 4.5 8 2 2.5
F6-12M groove raceway 6 12 4.5 8 2 2.2
F6-14M groove raceway 6 14 5 8 2.381 3.5
F7-13M groove raceway 7 13 4.5 9 2 2.6
F7-15 flat raceway 7 15 5 8 2.5 4.4
F7-15M groove raceway 7 15 5 8 2.5 4.3
F7-17M groove raceway 7 17 6 8 2.381 6.5
F8-16 flat raceway 8 16 5 9 3 5
F8-16M groove raceway 8 16 5 9 3 4.5
F8-19M groove raceway 8 19 7 8 3.175 9.1
F9-17 flat raceway 9 17 5 10 2.381 5.1
F9-20M groove raceway 9 20 7 8 3.175 9.9
F10-18 flat raceway 10 18 5.5 10 2.381 6
F10-18M groove raceway 10 18 5.5 10 2.381 5.4
EASIER  Number Raceway type bore diameter of (d) outer diamter (D) thickness(H) Load Rating Cr(KN) Load Rating Cor(KN) Weight/g
51100 groove raceway 10 24 9 10 14 19
51200 groove raceway 10 26 11 12.5 17 28
51101 groove raceway 12 26 9 10.2 15.2 21
51201 groove raceway 12 28 11 13.2 19 31
51102 groove raceway 15 28 9 10.5 16.8 22
51202 groove raceway 15 32 12 16.5 24.8 41
51103 groove raceway 17 30 9 10.8 18.2 24
51203 groove raceway 17 35 12 17 27.2 48
51104 groove raceway 20 35 10 14.2 24.5 36
51204 groove raceway 20 40 14 22.2 37.5 75
51304 groove raceway 20 47 18 35 55.8 150
51105 groove raceway 25 42 11 15.2 30.2 55
51205 groove raceway 25 47 15 27.8 50.5 110
51305 groove raceway 25 52 18 35.5 61.5 170
51405 groove raceway 25 60 24 55.5 89.2 310
51106 groove raceway 30 47 11 16 34.2 62
51206 groove raceway 30 52 16 28 54.2 130
51306 groove raceway 30 60 21 42.8 78.5 260
51406 groove raceway 30 70 28 72.5 125 510
51107 groove raceway 35 52 12 18.2 41.5 77
51207 groove raceway 35 62 18 39.2 78.2 210
51307 groove raceway 35 68 24 55.2 105 370
51407 groove raceway 35 80 32 86.8 155 760
51108 groove raceway 40 60 13 26.8 62.8 110
51208 groove raceway 40 68 19 47 98.2 260
51308 groove raceway 40 78 26 69.2 135 530
51408 groove raceway 40 90 36 112 205 1060
51109 groove raceway 45 65 14 27 66 140
51209 groove raceway 45 73 40 47.8 105 300
51309 groove raceway 45 85 28 75.8 150 660
51409 groove raceway 45 100 39 140 262 1410
51110 groove raceway 50 70 14 27.2 69.2 150
51210 groove raceway 50 78 22 48.5 112 370
51310 groove raceway 50 95 31 96.5 202 920
51410 groove raceway 50 110 43 160 302 1860
51111 groove raceway 55 78 16 33.8 89.2 220
51211 groove raceway 55 90 25 67.5 158 580
51311 groove raceway 55 105 35 115 242 1280
51411 groove raceway 55 120 48 182 355 2510
51112 groove raceway 60 85 17 40.2 108 270
51212 groove raceway 60 95 26 73.5 178 660
51312 groove raceway 60 110 35 118 262 1370
51412 groove raceway 60 130 51 200 395 3080

 

The other kinds of thrust bearings are

— Miniature Thrust Ball Bearings

— Inch size thrust ball bearings

— King pin thrust bearing

— Spherical roller thrust bearings

— Thrust needle roller bearings

— Thrust tapered roller bearings

— Cylindrical roller thrust bearing

— Angular Contact Thrust Ball Bearings

— Thrust spherical plain bearings

— Stainless steel thrust ball bearings

— Ceramic ball thrust bearings

 

Miniature thrust ball bearings are designed to withstand thrust loads during high-speed operation, and it 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.

Miniature thrust ball bearing structure: The material of the bearing retainer is divided into stainless steel and copper, and the material of the plane thrust ball bearing is bearing steel or stainless steel, which is divided into with groove and without groove.

The use of miniature thrust ball bearings: It is only suitable for parts that bear an axial load on one side and have a low speed, such as crane hooks, vertical water pumps, vertical centrifuges, jacks, low-speed reducers, etc. The shaft washer, seat washer and rolling elements of the bearing are separated and can be assembled and disassembled separately.

CoatMaster (China Bearing manufacturer, Germany Technology) can supply complete thrust bearings above mentioned, and we have stock of the thrust bearings list. OEM service available, any more details please contact with us anytime.

King pin bearings

Steering King Pin Bearings 

2021101722282320211017222832             20211017222841

                King Pin Bearing with Tapered Roller                       King Pin Bearing with Ball              King Pin Bearing with Metal Shell

King Pin Bearings also named King Pin Thrust Bearings, are consist of two pieces washer ( the bearing rings), steel ball or steel rollers,cages, rubber seals, metal shell (normally we use chrome steel materials). the same with thrust ball bearings or thrust roller bearings, the King Pin Bearings can support large axial loads in one direction, requiring a minimum axial load for optimum performance.

The bearings are detachable so that the assembly is simple since the washer, the ball, and the cage can be mounted separately. What is the different is the thrust ball bearings or thrust roller bearings have no metal shell design. The materials we adopt chrome steel, and steel ball or steel rollers.

 

Thrust Ball Bearing with Metal Shell for king pin

thrust ball bearings with metal shell are manufactured as single direction thrust ball bearings. This kind of bearing consist of a shaft washer, a housing washer and a ball and cage assembly, some of king pin bearings are full complement steel balls, without cage. They are designed to accommodate axial loads only and must not be subjected to any radial load.

 

Thrust Tapered Roller Bearings for king pin

· Comprised of two thrust tapered races, rollers and an outside retainer which holds the components together during shipping and installation.

· Full complement design (cageless).

· These thrust bearings are specifically designed for oscillating applications.

· Types TTC, TTCS and TTCL are identical except for the outside retainer construction.

 

EASIER also manufacturer and supply many kinds of the other automotive Bearings:

— Wheel Hub Bearings

— Heavy Duty Truck Wheel Bearings

— Auto Tapered Roller Bearing

— Auto Cylindrical Roller Bearings

— AutoMotive Deep Groove Ball Bearings

— Automobile Needel Roller Bearings

— Auto bearing repair kit

— Clutch release bearing

— Tensioner and idler bearing

— Automotive generator bearings

— Automotive air-conditioning bearings

— Steering Gear Bearings

We are China Bearing manufacturer and exporter of King Pin Bearings with steel ball or steel rollers, also written as king-pin or king pin, is a very important component in any vehicle. It is the main pivot in the mechanism of steering in any vehicle. King Pins are also used as fifth wheel coupling apparatus in vehicles. King Pins have an important property of being able to carry heavier weights and therefore can be mostly seen in Large or Heavy Vehicles.

The Kingpin Bearing is capable of bearing thrust pressure in various industrial pump applications and possesses high resistivity and durability. These are constructed using high grade raw materials, which are tested under the supervision of experienced professionals. Kingpin bearing is the main pivot in the steering mechanism of a car or other vehicles.

EASIER as Top China Bearing manufacturer, it Can manufacture and supply complete series King Pin Bearings & King Pin Thrust Bearings, there are few bearing manufacturer in the world manufacturer this kinds of bearings like Fersa from Spain, TIMKEN from USA, TURBO,TKW from China etc. Our products are the same design and replace them for customers on the market. You can see the King Pin Thrust Bearings as follows.

King Pin Bearing List — EASIER Brand, China Bearing manufacturer
Designation Dimension(mm) Type Structure Seals
25TAG001 45*25.3*15.8 King Pin Ball Bearing Ball O Ring
25TAG11C 44*25.3*11.8 King Pin Ball Bearing Ball O Ring
25TAG12A 48*25.3*15.8 King Pin Ball Bearing Ball O Ring
028TAG05-2 54*28.3*16.4 King Pin Ball Bearing Ball O Ring
28TAG003 47*28.3*12 King Pin Ball Bearing Ball O Ring
28TAG12 51.8*28.3*15.8 King Pin Ball Bearing Ball
28TAG12A 51.8*28.3*15.8 King Pin Ball Bearing Ball O Ring
28TAG12E 51.6*28.3*15.8 King Pin Ball Bearing Ball O Ring
30TAG001 51.8*30.3*16.8 King Pin Ball Bearing Ball O Ring
30TAG002 51.8*30.3*15.8 King Pin Ball Bearing cage or without cage O Ring
249210K1 78*50.3*22 King Pin Thrust Bearing Taper Rollers
329210 78*50.3*22 King Pin Thrust Bearing Taper Rollers
329910 78*47.3*22 King Pin Thrust Bearing Taper Rollers
3328712 56*30.5*16.4 King Pin Thrust Bearing Taper Rollers
353118 73.5.45.5.20 King Pin Thrust Bearing Taper Rollers
3553118 73.5.45.5.20 King Pin Thrust Bearing Taper Rollers
35TAG12A 65*35.3*19 King Pin Ball Bearing Ball O Ring
35TAGB02B 65*35.3*18 King Pin Ball Bearing Ball
40TAG12-1 70*40.2*21 King Pin Ball Bearing Ball O Ring
47TAG001 78*47*23 King Pin Ball Bearing cage or without cage O Ring
55TAG001K 90*55.3*26 King Pin Ball Bearing Ball or Roller
517-52 83*52.3*23 King Pin Ball Bearing Ball O Ring
520-117 42.2*22*13.3 King Pin Ball Bearing Cage
528548B 78*50.3*22 King Pin Thrust Bearing Taper Rollers
528548B1 78*50.3*22 King Pin Thrust Bearing Taper Rollers
528548EJ 78*50.3*22 King Pin Thrust Bearing Taper Rollers
528548EJ-A 78*51.3.22 King Pin Thrust Bearing Taper Rollers
56925 73*40*20 King Pin Bearing Taper Rollers
AF-83345 43.4*23.3*9 King Pin Ball Bearing Ball Black Colour
B-59 82*55.5*22/25 King Pin Thrust Bearing Taper Rollers Special Design
B-130 56*33.3*16 King Pin Ball Bearing With Cage
BE-14 41*22.3*14.3 King Pin Bearing Ball
B139A 67*39.2*20/23 King Pin Bearing
B139B 73*39.2*20/23 King Pin Bearing
CRTD752B 65*35.3*18.2 King Pin Ball Bearing Ball O Ring
CRTD953B 72*45*19 King Pin Ball Bearing Ball Special Design
D15 78.5*41.8*20/23.3 King Pin Bearing
D19 78.6*41.75*20 King Pin Bearing
D27 88.8*50.3*23.8 King Pin Bearing
F78 83*52*5.5/8.5 King Pin Bearing
F-35-A 65*35*18 King Pin Ball Bearing Ball O Ring
F50-4 76*50.3*19 King Pin Ball Bearing Ball O Ring
H-10 42*21.6*13.8 King Pin Bearing Ball or Roller
JLB-U26 48*24.2*15 King Pin Bearing With Cage
JLB-U61 42*25.7*9 King Pin Bearing With Cage Special Design
M74 48*30.3*12 King Pin Bearing With Cage Special Design
N57 56*35.3.16 King Pin Ball Bearing Ball O Ring
N58 51.5*29.3*16 King Pin Ball Bearing Ball O Ring
S14 74*47.2*6 King Pin Bearing
S18 46*25*6/10 King Pin Bearing
T-37-RC 66*37*19.7 King Pin Bearing Taper Rollers
T-21 40*22.2*12.8 King Pin Ball Bearing Ball
T28S-1 53*28.3*16 King Pin Ball Bearing Ball O Ring
T33 56*33*16 King Pin Thrust Bearing Taper Rollers
T50RC 82*50.3*22 King Pin Thrust Bearing With Cage O Ring
TK50RC 82*50.3*22 King Pin Thrust Bearing With Cage O Ring
T113 55.5*29*16 King Pin Thrust Bearing Taper Rollers
T115 48*27.2*12.3 King Pin Ball Bearing With Cage
T119 56*30.5*16 King Pin Thrust Bearing Taper Rollers
T121 55.5*30.7*15.9 King Pin Thrust Bearing Taper Rollers
T126 56*32.3*16 King Pin Thrust Bearing Taper Rollers
T127 66.6*32*19.5 King Pin Thrust Bearing Taper Rollers
T133 56*33.3*16 King Pin Thrust Bearing Taper Rollers
T138 66*36.2*19.5 King Pin Thrust Bearing Taper Rollers
T1380 56*35.2*16 King Pin Thrust Bearing Taper Rollers
T139 59*35.2*16 King Pin Thrust Bearing Taper Rollers
T149 66*38*19.5 King Pin Thrust Bearing Taper Rollers
T163 72.8*41.6*21.4 King Pin Thrust Bearing Taper Rollers
T177 78*46.3*22 King Pin Thrust Bearing Taper Rollers
T178 73*40*19 King Pin Thrust Bearing Taper Rollers
T179S 79*45.5*23 King Pin Thrust Bearing Taper Rollers Rubber Seal
T179SP 79*45.5*23 King Pin Thrust Bearing Taper Rollers Rubber Seal
T179SP-SPEC 79*45.5*25.8 King Pin Thrust Bearing Taper Rollers O Ring
T182 83*46.3*23.8 King Pin Thrust Bearing Taper Rollers
T182S 87*46.3.25 King Pin Thrust Bearing Taper Rollers Rubber Seal
T1822S 83*46.3*17 King Pin Thrust Bearing Taper Rollers Rubber Seal
T188S 87*47.8*23.8 King Pin Thrust Bearing Taper Rollers Rubber Seal
T189S 87*47.8*23 King Pin Thrust Bearing Taper Rollers Rubber Seal
T194S 97*49.4.28.5 King Pin Thrust Bearing Taper Rollers Rubber Seal
T208 93*52.5*27 King Pin Thrust Bearing Taper Rollers
T208S 97*52.6*28.5 King Pin Thrust Bearing Taper Rollers Rubber Seal
T1910 81*41.8*16 King Pin Thrust Bearing Taper Rollers Rubber Seal
T1910-4 80*41.5*15.8 King Pin Thrust Bearing Taper Rollers
T1921 80*41.5*15.8 King Pin Thrust Bearing Taper Rollers
T3563TS-5 64*35.6*17 King Pin Ball Bearing Ball O Ring
T4072RS 72*40.3*19 King Pin Ball Bearing Ball O Ring
T4075RS 75*40.3*20 King Pin Ball Bearing Ball O Ring
T5082RS 82*50.3*20 King Pin Ball Bearing Ball Double Shell
T508523RS 85*50.3*23 King Pin Bearing Taper Rollers
TAG20-4A 37*20.3*11 King Pin Ball Bearing Ball O Ring
TAG21-1 41.5*21.2*14.3 King Pin Ball Bearing Ball
TAG45-1 72*45*15 King Pin Ball Bearing Ball O Ring
TX151WAPAD 72.7*38.8.21.3 King Pin Bearing With Cage O Ring
Y25 45*25.3*13.8 King Pin Ball Bearing Ball O Ring
Y25-3 45*25.3*13.8 King Pin Ball Bearing Ball O Ring
Y28-2DB 54.2*28.3*9 King Pin Ball Bearing Ball Double direction
Y30-1AB 51.8*30.3.13.8 King Pin Bearing Ball or Roller O Ring
Y30-2F 54*30.3*13.8 King Pin Bearing Ball or Roller O Ring
Y30Z-1B 56*30.7*16 King Pin Ball Bearing Ball
Y38 66*38.3*20 King Pin Ball Bearing Ball O Ring
Y45 73*45.3*22 King Pin Ball Bearing Ball O Ring
Y50-9B 80*50.3*19 King Pin Bearing Ball or Roller O Ring
Y50-9J 80*50.3*19 King Pin Bearing Ball or Roller O Ring

China King pin Bearings for Man Truck Bearings, IVECO Truck Bearings, DAF Truck bearings, Renault Truck Bearings, Scania Truck bearings, SAF Truck Bearings, Volvo Truck Bearings, Mercedes Benz truck bearings, truck wheel hub bearing, bearing set without spacer, bearing set with spacer, and tapered roller bearing.

Features of King Pin Bearings

— Excellent prevention from overrunning & backstopping

— Self-Aligned ,

— High load sustaining capacity

— Seal excludes contamination with a separator and bore liner,

— Prevent rotational damage,

— Get automatically locked when rolled in opposite direction

What is the Difference Between DE and NDE Bearing?

The floating end of the motor is also called the free end, which is relative to the fixed end; in general, the free end is selected at the non-drive end, but the motor load requirements are higher, and the axial matching size requirements with the load equipment are not very high. In this case, the free end will be selected as the drive end.

When the motor bearing support system is a double fulcrum and double bearing structure, the drive end is also used as the free end when the radial load is large. Especially for low-voltage, high-power and high-voltage motors, the cylindrical roller bearing at the free end can meet the radial load requirements. Large load requirements.

The rollers and raceways of cylindrical roller bearings are in line contact or under-line contact. The radial load capacity is large. It is more suitable for bearing heavy loads and impact loads. The inner ring or outer ring can be separated for easy installation and disassembly. This series of bearings has a small friction coefficient and is suitable for operating conditions with high speed and limit speed close to deep groove ball bearings. The more commonly used N-type and NU-type cylindrical roller bearings in motors can move axially between the inner and outer rings of the bearing, which can adapt to changes in the relative position of the shaft and the housing caused by thermal expansion or installation errors, and can be used as a free end support. However, the bearing has higher requirements for the machining of the shaft or the bearing chamber hole, and the relative deviation of the inner and outer ring axes after the bearing is installed must be strictly controlled to avoid contact stress concentration.

Insulated bearing for motor

Compared with the fixed-end bearing, in order to meet the axial displacement requirements of the rotor part during the operation of the motor, the axial clearance requirements of the outer ring of the bearing and the inner and outer cover of the bearing are different according to the selection of the bearing.

(1) When the free end adopts a bearing with separable inner and outer rings, for the two-bearing structure motor, the fixed end is selected at the non-driving end; the outer ring of the fixed end and the free end bearing and the inner and outer cover of the bearing are axially free of gaps Cooperate.

(2)When a non-separable bearing is used at the free end, that is, the relatively common two ends of small and medium-sized motors are ball bearing structures. In view of the impact on the installation accuracy of the drag equipment, the drive end is used as the fixed end, and the inner ring of the free end bearing should be limited There is a gap between the outer ring and the stop of the inner and outer cover of the bearing; at the same time, in order to ensure the axial matching displacement requirement during the operation of the motor, the radial matching between the outer ring of the bearing and the bearing chamber is not easy to be too tight. When there is no obvious difference between the fixed end and the free end of the motor, the matching relationship is in accordance with the principles in the previous issue of “Selection and Matching Relationship Requirements for Motor Fixed End Bearings”.

structure of insulated bearing in motor

Insulated bearings are mainly used in motor products. Its use is determined according to the power state of the motor. Normal grid power supply has no high-frequency voltage and current components. Generally, insulated bearings are not used. Only high-voltage motors and large motors such as 400 and above are used.

But now the variable frequency power supply power supply, because the quality of the power supply contains a lot of high-frequency components, which causes the motor shaft current to increase, so this issue should be considered for specifications above 400KW, and even the smaller specifications should also consider installing insulation Bearings according to the usage conditions. such as the main motors used in electric vehicles and electric rail locomotives, are generally about 100KW, and electrical insulated bearings must be used (or other insulation structures are used to ensure that the shaft current does not flow).

With the development of society and the progress of industrial technology, more and more equipment and application scenarios have stricter  requirements on the service life, noise level, and stability of bearings. As the most widely used power output device in industry, the motor is the most widely used power output device. Stability and service life play a particularly critical role in the application of equipment.

图片2

In the actual production and processing process, due to the actual integration of customers or production resources, especially the repair process of the motor, the substitution of bearings will inevitably occur. The more common one is the interchange of deep groove ball bearings and cylindrical roller bearings. , Especially when the radial load requirements are high, the deep groove ball bearing is often chosen to be replaced with a cylindrical roller bearing. If this situation exists, the conformity of the axial and radial matching relationship between the fixed end and the free end bearing must be considered .

 

Reprinted source:https://www.electricallyinsulatedbearings.com/What-Is-The-Difference-between-DE-And-NDE-Bearing-id3120599.html

Schaeffler acquires BEGA International B.V.

On August 4, 2021, Schaeffler announced the acquisition of BEGA International B.V., a leading manufacturer of special tools for mounting and dismounting rolling bearings.

This acquisition is another important move for Schaeffler to continuously expand its bearing service product portfolio throughout its life cycle.

Connecting BEGA’s intelligent maintenance tools to the industrial IoT platform dedicated to the Schaeffler OPTIME condition monitoring system can open up new application potential.

Customers will also benefit from this acquisition. All customer service-related applications will adopt a unified interface, which improves the user experience throughout the bearing life cycle, including bearing installation to monitoring, maintenance and repair.

In addition, customers and partners can not only obtain one-stop bearing maintenance and monitoring solutions and services, but also obtain various repair and maintenance solutions more conveniently.

Rauli Hantikainen, Head of Industry 4.0 Strategy Business of Schaeffler Group, said: “Industry 4.0 is of great strategic significance to Schaeffler. Our goal is to become the partner of choice for preventive and proactive maintenance solutions. Through the acquisition of BEGA Company, we can provide customers with full life cycle services and solutions for bearings and other drive products.”

Henk Van Essen, the current CEO of BEGA International, said: “Through this partnership, Schaeffler and BEGA will become one of the industry’s leading maintenance solution providers. At the same time, our goal is to become one of the most innovative equipment suppliers.” Henk Van Essen will continue to serve as the company’s CEO after the acquisition.

Schaeffler continues to expand its product portfolio and is committed to becoming the customer’s preferred technology partner through innovation, agility and efficiency.

As part of the company’s strategic direction, Schaeffler is actively expanding its asset lifecycle management products and services. Schaeffler will continue to advance toward its goals under the guidance of the “2025 Strategic Plan”.

About BEGA International

BEGA was founded in 1978 and is headquartered in Wassen, the Netherlands. It is a professional company that manufactures and distributes bearing and drive component installation and removal tools.

BEGA’s users are mainly the production and maintenance departments of MRO and OEM companies. BEGA’s products are exported to more than 60 countries and provide customized solutions for many industries such as wind energy, railways, mining and steel.

BEAG’s induction heater can reduce energy consumption during the bearing installation and disassembly process, and shorten the installation time. Induction heating does not require fossil fuels such as oil and gas, which is environmentally friendly and safe.

RBC Bearings Reached an Agreement to Acquire Dodge Mounted Bearings

On July 27, ABB announced the signing of a definitive agreement to sell its mechanical power transmission business unit (Dodge) to RBC Bearing Company for US$2.9 billion in cash.

The transaction will create a highly engineered, performance-oriented bearing and motion control component manufacturing company. The transaction is expected to be completed before the end of 2021, subject to completion conditions including regulatory approval.

ABB CEO Bjoern Rosengren announced in November last year that ABB will explore Dodge and its options for turbocharging units and power conversion businesses.

Investors hope that his strategy will solve ABB Group’s structural problems and improve profitability. Dodge’s products include mounting bearings, enclosed transmissions and bushings for industrial applications. As part of the acquisition of Baldor Electric Co. in 2011, ABB acquired the business.

China bearing manufacturer

 

For more than 140 years, Dodge Bearing has always been the market and technology leader in the fields of Mounted bearings, gearboxes and mechanical power transmission components, providing a very wide range of mechanical power transmission product portfolios on the market, covering various industrial fields, such as mining, aggregates and Cement, storage and food and beverage industries.

Dodge has approximately 1,500 employees worldwide. As of June 30, Dodge had achieved sales revenue of approximately US$600 million in the past 12 months, of which more than 90% came from the Americas, and its operating profit margin before interest, tax and amortization was close to 23%. Dodge has six production bases, five of which are in the United States and one in China. Its headquarter is located in Greenville, South Carolina. The head of this business unit is Roger Costa.

Earlier news reported that both Schaeffler and Timken were considering bidding for ABB’s mechanical power transmission business, but they were eventually acquired by the Royal Bank of Canada Bearing Company (RBC Bearing Inc.).

ABB Group CEO Robin Ang said: “We are very happy to find an outstanding new ownership for Dodge-RBC Bearings, where we will continue to write exciting development chapters.

 

Mounted bearing application

 

This transaction will further strengthen ABB’s balance sheet. Based on the priority of capital allocation, we plan to invest the proceeds of the transaction in organic growth first, pay a continuously growing dividend per share, and conduct value-based creative acquisitions. Next, we will announce a possible listing plan for exiting the turbocharging business and electric transportation business at an appropriate time. ”

Dr. Michael J. Hartnett, Chairman, President and CEO of RBC Bearings, said: “Today, we are very pleased to announce that ABB and RBC Bearings have signed a Dodge acquisition agreement. This merger will enhance the strength, business layout and customer coverage of RBC Bearings. At the same time, it helps us enter Dodge’s attractive end market. Our two businesses are highly complementary. Dodge will bring new products, new end markets and larger organizations. The combined company will have a diversified customer base and The vast geographical layout is in a favorable position in the aerospace, defense and industrial markets. We look forward to the excellent team of Dodge to join RBC bearings.”

ABB expects to include approximately US$2.2 billion in non-operating pre-tax book income through the sale of Dodge, and estimates that cash tax expenditures related to the transaction are approximately US$400 million.

 

From: https://www.electricallyinsulatedbearings.com/RBC-Bearings-Reached-an-Agreement-to-Acquire-Dodge-Mounted-Bearings-id3747129.html

INA Standard F-49285 Bearing for Planetary Gear Box

Designation: F-49285

Dimension: 40×61.74×32mm

Weight: 0.4kg

Type: Cylindrical Roller Bearing, Without outer ring

Brand: INA, CoatMaster, EASIER, C&U

Application: Planetary gear transmission

Planetary gear transmission is a transmission that uses planetary gear mechanism to achieve speed change. It is usually installed behind the torque converter to form a hydraulic automatic transmission. The planetary gear mechanism gets its name because it is similar to the solar system. In its center is the sun wheel. Around the sun wheel are several planet wheels that revolve around it. Between the planet wheels, there is a shared planet carrier. On the outside of the planetary gear, there is a large ring gear.

 

The design trend of industrial gearboxes is to adopt a smaller form factor to improve their compactness, while continuously increasing the power level of the gearbox, Increasing power density in a very small space also places higher requirements on the bearings used.

Based on the requirements of high load-bearing capacity, small space, safety and reliability, low noise, and easy to follow, we provide targeted bearing solutions.

  1. RSL type single row and double row full complement cylindrical roller bearings without outer ring have high dynamic and static load carrying capacity and very compact radial dimensions
  2. RN type cylindrical roller bearing with cage guide, especially suitable for high speed
  3. KZK series needle roller cage assembly is suitable for high centrifugal force, high acceleration and very high speed

F series cylindrical roller bearing

1 F-212543
2 F-219593
3 F-208098
4 F-208099
5 F-127621
6 F-385328
7 F-229575.1
8 F-208266
9 F-208266.5
10 F-212355.2
11 F-49285
12 F-244026
13 F-554377
14 F-239535
15 F-236487.04
16 F-2439
17 F-2419
18 F-204782
19 F-204781
20 F-227450
21 F-93666.02
22 F-237005
23 F-209297
24 F-507037
25 F-229075.2
26 F-210408
27 F-123243
28 F-217615
29 F-254026
30 F-213617

CoatMaster is the China bearing manufacturer & exporter & supplier, it can supply  INA Standard F-49285 Bearing for Planetary Gear Box, Our large quantity bearing Stock can meet your need with good quality and fast delivery, Also you can find the other type and brand construction machinery bearings, agricultural machinery bearings, spherical roller bearings, cylindrical roller bearings, tapered roller bearings, deep groove ball bearings, thrust roller bearings, mounted ball bearings etc.

Japan Bearing Industry History

Although Japan’s bearing industry started late, its development speed is fast, and in recent years it has become the world’s leading bearing power and power. Japan is a strong country in the production of precision bearings, leading the world in terms of product development, design and manufacturing, technological level, product quality and production equipment.

The development history of Japan’s bearing industry

Pay attention to improving the level of technology and quality

Same as “Made in Japan” synonymous with poor quality and low price, the development of the Japanese bearing industry has also experienced unsatisfactory periods. For example, before 1980, the first choice of bearing manufacturers for the important positions of industrial manufacturing in European and American countries were Timken and FAG, and only Japanese bearings were used in the secondary position.

Later, in the process of developing trade revitalization, Japan gradually paid attention to the technical level and quality level of the development of the bearing industry, and paid great attention to product quality management. With the continuous improvement of product quality level, Japan implemented export inspection exemption policy after 1993. Although Japan has a global open market, it rarely applies foreign bearing brands due to its strong domestic bearing industry. Japanese bearings have good quality and are also based on the support of two technologies.

ONE:  Process equipment and technology;

TWO:  Ultra-cleanliness bearing steel.

In terms of process equipment and technology, Japanese bearing companies pay great attention to it. Automatic production lines, CNC machine tools, and automated machine tools are commonly used in the manufacturing process. Large-scale enterprises extensively independently manufacture important equipment and use this as the core technology. In terms of vibration, noise and abnormal sound, Japan has introduced silent and ultra-quiet bearings. Compared with Japanese bearings, the vibration extreme level of Chinese bearings generally differs by more than 10dB. For example, Japan’s low-noise deep groove ball bearing technology was applied in an automated production line in 1959. The accuracy of the product has been significantly improved, and the price of the product has been greatly reduced.

The country is very concerned

Japan is the country that pays the most attention to the development of the bearing industry in the world. For a long time, Japan has always regarded the bearing industry as a pillar industry such as the foundation for improving people’s lives, the core machinery industry, and the defense industry. After the 1950s, Japan enacted the Electromechanical and Machinery Promotion Law, which paid special attention to and supported the development of the bearing industry. Among them, the creation of a scientific production system, that is, restricting the types of production, organizing the production scale, and dividing the scope of production are very obvious measures. In this way, the development of the bearing industry can be effectively unified, which is conducive to the scale of production. , Centralization and improvement of professionalism.

Pay attention to the division of labor

Japan’s land area is roughly the same as that of my country’s Yunnan Province, but it has more than 30 bearing companies, including the top five bearing companies in the world, and has the world’s largest corporate equivalent density. Despite this, its status has been for decades. However, it is in an “ecological balance”, and it is not the same as that of the bearing companies in European and American countries where there is a very drastic reorganization and merger. In fact, competition among Japanese bearing companies has always existed. However, the focus of their competition is quality and technology, not vicious competition on prices, but joint implementation of monopoly policies on prices. Japanese bearing companies are not only large and powerful, many small and medium-sized bearing companies also have advanced technology and product quality in the global field. In short, one of the powerful tools that the Japanese bearing industry can gain a global competitive advantage is solidarity and mutual assistance and win-win development.

Implement internationalization strategy

In the 1950s and 1960s, Japan imitated and introduced advanced technologies from Europe and the United States through a cooperative technology model and low-cost labor cost advantages, and penetrated a lot of products in the world market. This caused excessive competition and overflowing of second-hand goods. Big trade friction. After nearly two decades of hard work, Japan has established a dominant position in many fields. Not only does its products have low prices, but they also have attentive services, complete functions, and high quality, which puts European and American countries facing very large competitive pressures. Currently, Japan’s five largest bearing companies have set up more than 200 overseas companies, and the sales of international markets account for at least two-thirds of the sales of domestic markets. Japanese bearing companies have continued to optimize and upgrade their overseas construction of branch factories, such as shifting from production based on previous demand to optimal production.

Japan Bearing Company List

NSK: Nippon Seiko Co., Ltd. Founded in the 1920s, it is currently the top three in the world, producing a full range of bearings.

NTN: Toyo Japan. It was established a little later than NSK. Top ten in the world, producing a full range of bearings, automotive bearings

KOYO: Japan Koyo. Top ten in the world, producing a full range of bearings, automotive bearings

NACHI: Fujitsu Co., Ltd. of Japan. Production of industrial robots and drill bits (one of the best in the world). Bearing products account for only a small part.

NMB: Production of miniature bearings. The scale of miniature bearings alone ranks among the top in the world

IKO: Linear motion series, needle roller bearings.

THK: Linear Motion Series

IJK: Precision bearings, miniature bearings, and widened bearings. Currently under NSK

ASAHI: Japan’s Asahi Seiko. Spherical bearing with seat.

FYH: Kobayashi Seiko of Japan. Spherical bearing with seat.

EZO: Miniature bearings, stainless steel bearings, special material bearings.

KYK (production of a full range of bearings),

JNS (Needle Bearing),

Misumi (bearings for toys, ball bearings, needle roller bearings, roller bearings), etc.

Insulated Angular Contact Ball Bearings

CoatMaster has been able to increase reliability and machine uptime by virtually eliminating the damaging effects of stray electric currents. CoatMaster bearing designs The standard range of CoatMaster bearings in the most frequently used sizes and variants are available from stock as

  • single row deep groove ball bearings
  • single row cylindrical roller bearings.
  • single row angular contactball bearings.

The performance data as well as the dimensional and running accuracy of CoatMaster bearings are identical to standard non insulated bearings.

CoatMaster bearings with coated outer ring Bearings with an electrically insulating coating on the external surfaces of the outer ring are the most common CoatMaster bearings. They are identified by the suffix VL0241. Outer ring coated CoatMaster bearings are recommended for medium size motors, that use 7215, 7313 size bearings and larger. For applications where smaller bearings are used, CoatMaster recommends hybrid deep groove ball bearings.

 

CoatMaster bearings with coated inner ring Bearings with an electrically insulating coating on the external surfaces of the inner ring provide enhanced protection against electric current damage. The enhanced protection results from the increased impedance due to the smaller coated surface area. Bearings with a coated inner ring are identified by the

suffix VL2071 and are recommended for larger size motors (typically from bearing sizes 7226, 7324 sizes and larger), or other applications where the bearings risk being subjected to high shaft voltages.

 

CoatMaster Electrically Insulated angular contact ball bearings can only bear axial load in one direction. When bearing radial load, additional axial force will be caused. And it can only limit the axial displacement of the shaft or housing in one direction. Angular contact ball bearings have a contact angle of 40 degrees, so they can withstand large axial loads. Angular contact ball bearings are of non-separable design, and the shoulders on both sides of the inner and outer rings are different in height. In order to improve the load capacity of the bearing, the shoulder on one side will be processed lower so that the bearing can be loaded with more steel balls.

Electrically Insulated angular contact ball bearings can withstand larger radial loads, mainly combined radial and axial loads and moment loads, limiting the axial displacement of the shaft on both sides. The tiltability between the inner and outer rings of the double row angular contact ball bearing is mainly used to limit the bidirectional axial displacement of the shaft and the housing. The allowable tilt angle depends on the internal clearance of the bearing, bearing size, internal design and acting on it. The force and moment on the bearing, and the maximum allowable inclination angle should ensure that no excessive additional stress is generated in the bearing. If there is an inclination angle between the inner and outer rings of the bearing, it will affect the life of the bearing, and at the same time cause the bearing’s running accuracy to decrease and the running noise to increase. Double row angular contact ball bearings generally use nylon cages or brass solid cages. Pay attention to the installation of double row angular contact ball bearings. Although the bearing can withstand two-way axial loads, if there is a gap for the ball on one side, care should be taken not to allow the main axial load to pass through the gap on the side of the groove. When the bearing is used, care should be taken to make the side raceway without the ball notch bear the main load.

 

Electrically Insulated Paired double ball bearings

If it is installed in pairs, the outer rings of a pair of bearings are opposite, that is, the wide end faces the wide end face and the narrow end faces the narrow end face. In this way, additional axial force can be avoided, and the shaft or housing can be restricted to the axial clearance range in both directions.

Because the raceways of the inner and outer rings can have relative displacement on the horizontal axis, they can bear radial load and axial load at the same time—combined load (single row angular contact ball bearings can only bear axial load in one direction, so they usually Install in pairs).

The material of the cage is brass, synthetic resin, etc., which are differentiated according to the type of bearing and the conditions of use.

Angular contact ball bearings are mostly manufactured by foreign bearing manufacturers, and more domestic ones are used in imported equipment such as angular contact ball bearings 3204RS, etc.

The narrow side is outside, the wide side is inside, the other wide side is inside, and the narrow side is outside, which means back-to-back contact.

The accuracy grades of angular contact ball bearings include dimensional tolerances and rotation accuracy. The accuracy from low to high is represented as P0 (normal), P6 (P6X), P5, P4, P2.

 

Technical features and benefits of Electrically Insulated bearings

  • The coating is applied using a plasmaspray technique. Sophisticated pre- and post- application processes yield an outstanding coating quality.
  • CoatMasterbearings are treated with a unique sealant to guard against humidity

and water from penetrating the coating and reducing its effectiveness.

  • Due to the quality of the application and finishing processes, CoatMasterbearings

provide reliable and consistent insulation, that is virtually insensitive to heat, moisture

and chemicals.

  • CoatMaster can supply values for relevant electric parameters for the bearings (capacitance,

impedance) to optimize the insulating solution for any application.

  • CoatMasterbearings are environmentally friendly.
  • CoatMasterbearings with an outer ring coating are suitable for all types of housings. No additional mounting precautions are necessary