4-bolt flange bearing units manufacturer from China

4-bolt flange bearing units is one kind of mounted ball bearing units, this design have 4 bolt in the housing and its suffix is UCF series, The UCF Ball bearing unit are also the most widely used on the market.

4-bolt flange bearing units feature an internal structure identical to single row deep groove ball bearings and can bear significant radial load, as well as a great deal of axial load in both directions. We called this design is UC pillow block bearing, The hardened steel balls exhibit a high degree of “roundness” and the races are highly polished to accommodate a smooth ride at a wide range of speeds. UC Series bearing are the most used in the mounted ball bearing units.

flange bearing units have the special ability to self-align inside the housing because of the spherical shape of the outer diameter of the bearing insert and the concave shape of the inner diameter of the housing into which it fits.

The housings are made primarily of gray cast iron, and stamped steel. Plastic and cast steel, Gray cast iron is the most popular choice for bearing units because of its optimal characteristics of vibration absorption, high strength, and excellent heat dissipation.

UCF Standard duty, Wider inner ring bearing, Setscrew locking, Cast gray iron housing, pressed steel housing, plastic housing,

Cast DUCTILE iron housing available upon request.

Unit No.	Shaft Dia		Dimensions(mm)										Bolt Size (mm)	Weight (kg)
	d		L	J	A2	A1	A	N	B	S	Z	A3
	(in)	(mm)	L	J	A2	A1	A	N	B	S	Z	A3
UCF201		12	86	64	15	12	25.5	12	31	12.7	33.3		M10	0.61
UCF201-8	1/2		86	64	15	12	25.5	12	31	12.7	33.3		M10	0.61
UCF202		15	86	64	15	12	25.5	12	31	12.7	33.3		M10	0.61
UCF202-9	9/16		86	64	15	12	25.5	12	31	12.7	33.3		M10	0.61
UCF202-10	5/8		86	64	15	12	25.5	12	31	12.7	33.3		M10	0.61
UCF203		17	86	64	15	12	25.5	12	31	12.7	33.3		M10	0.61
UCF203-11	11/16		86	64	15	12	25.5	12	31	12.7	33.3		M10	0.61
UCF204		20	86	64	15	12	25.5	12	31	12.7	33.3	38.2	M10	0.61
UCF204-12	3/4		86	64	15	12	25.5	12	31	12.7	33.3	38.2	M10	0.61
UCF205		25	95	70	16	14	27	12	34.1	14.3	35.8	40	M10	0.80
UCF205-14	7/8		95	70	16	14	27	12	34.1	14.3	35.8	40	M10	0.80
UCF205-15	15/16		95	70	16	14	27	12	34.1	14.3	35.8	40	M10	0.80
UCF205-16	1		95	70	16	14	27	12	34.1	14.3	35.8	40	M10	0.80
UCF206		30	108	83	18	14	31	12	38.	15.9	40.2	44	M10	1.00
UCF206-17	1-1/16		108	83	18	14	31	12	38.	15.9	40.2	44	M10	1.00
UCF206-18	1-1/8		108	83	18	14	31	12	38.	15.9	40.2	44	M10	1.00
UCF206-19	1-3/16		108	83	18	14	31	12	38.	15.9	40.2	44	M10	1.00
UCF206-20	1-1/4		108	83	18	14	31	12	38.	15.9	40.2	44	M10	1.00
UCF207		35	117	92	19	16	34	14	42.9	17.5	44.4	48.5	M12	1.40
UCF207-20	1-1/4		117	92	19	16	34	14	42.9	17.5	44.4	48.5	M12	1.40
UCF207-21	1-5/16		117	92	19	16	34	14	42.9	17.5	44.4	48.5	M12	1.40
UCF207-22	1-3/8		117	92	19	16	34	14	42.9	17.5	44.4	48.5	M12	1.40
UCF207-23	1-7/16		117	92	19	16	34	14	42.9	17.5	44.4	48.5	M12	1.40
UCF208		40	130	102	21	16	36	16	49.2	19	51.2	55.1	M14	1.80
UCF208-24	1-1/2		130	102	21	16	36	16	49.2	19	51.2	55.1	M14	1.80
UCF208-25	1-9/16		130	102	21	16	36	16	49.2	19	51.2	55.1	M14	1.80
UCF209		45	137	105	22	18	38	16	49.2	19	52.2	57	M14	2.20
UCF209-26	1-5/8		137	105	22	18	38	16	49.2	19	52.2	57	M14	2.20
UCF209-27	1-11/16		137	105	22	18	38	16	49.2	19	52.2	57	M14	2.20
UCF209-28	1-3/4		137	105	22	18	38	16	49.2	19	52.2	57	M14	2.20
UCF210		50	143	111	22	18	40	16	51.6	19	54.6	60	M14	2.40
UCF210-30	1-7/8		143	111	22	18	40	16	51.6	19	54.6	60	M14	2.40
UCF210-31	1-15/16		143	111	22	18	40	16	51.6	19	54.6	60	M14	2.40
UCF210-32	2		143	111	22	18	40	16	51.6	19	54.6	60	M14	2.40
UCF211		55	162	130	25	20	43	19	55.6	22.2	58.4	63	M16	3.50
UCF211-32	2		162	130	25	20	43	19	55.6	22.2	58.4	63	M16	3.50
UCF211-34	2-1/8		162	130	25	20	43	19	55.6	22.2	58.4	63	M16	3.50
UCF211-35	2-3/16		162	130	25	20	43	19	55.6	22.2	58.4	63	M16	3.50
UCF212		60	175	143	29	20	48	19	65.1	25.4	68.7	73.5	M16	4.20
UCF212-36	2-1/4		175	143	29	20	48	19	65.1	25.4	68.7	73.5	M16	4.20
UCF212-38	2-3/8		175	143	29	20	48	19	65.1	25.4	68.7	73.5	M16	4.20
UCF212-39	2-7/16		175	143	29	20	48	19	65.1	25.4	68.7	73.5	M16	4.20
UCF213		65	187	149	30	22	50	19	65.1	25.4	69.7	74.5	M16	5.30
UCF213-40	2-1/2		187	149	30	22	50	19	65.1	25.4	69.7	74.5	M16	5.30
UCF214		70	193	152	31	22	54	19	74.6	30.2	75.4	80	M16	5.90
UCF214-44	2-3/4		193	152	31	22	54	19	74.6	30.2	75.4	80	M16	5.90
UCF215		75	200	159	34	22	56	19	77.8	33.3	78.5	82.5	M16	6.30
UCF215-47	2-15/16		200	159	34	22	56	19	77.8	33.3	78.5	82.5	M16	6.30
UCF215-48	3		200	159	34	22	56	19	77.8	33.3	78.5	82.5	M16	6.30
UCF216		80	208	165	34	22	58	23	82.6	33.3	83.3	89	M20	7.30
UCF217		85	220	175	36	24	63	23	85.7	34.1	87.6	92.1	M20	8.90
UCF217-52	3-1/4		220	175	36	24	63	23	85.7	34.1	87.6	92.1	M20	8.90
UCF218		90	235	187	40	25	68	23	96	39.7	96.3	102	M20	11.60
UCF218-56	3-1/2		235	187	40	25	68	23	96	39.7	96.3	102	M20	11.60

Notes:1. Pressed steel covers available at one end.S=Open cap,SM=Close cap. Ordering example:UCF205+SM.

2. Bearing housing solid base optional,add suffix SB as designation.

CoatMaster (China bearing manufacturer & exporter) can manufacture and supply complete mounted bearing unit, UCF Series bearing unit we can supply our own brand for customer who have very high demand about the quality and lead time.

CoatMaster not only produce and supply 4-bolt Ball Bearing Unit, But also the other ball & roller bearing as follows:

1. Deep Groove Ball Bearing
2. Self-aliging Ball Bearing
3. Cylindrical Roller Bearing
4. Spherical Roller Bearing, Sinle row, and sealed spherical roller bearing
5. Needle Roller Bearing
6. Angular contact ball Bearing
7. Tapered roller bearing
8. Thrust Ball Bearing
9. Thurst Roller Bearing
10.Bearing Unit
11.Thin Section Bearing
12.Plummer Block housing
13.Insulated bearing
14.Track Roller Bearing
15.Linear motion bearing
16.Slewing Bearing
17.Spherical Plain Bearing

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