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Four Point Contact Ball Bearings

Description Warranty Info

Description

COKB® Angular contact ball bearings have raceways in the inner and outer rings that are offset in relation to each other in the direction of the bearing axis. These bearings are designed to accommodate combined loads and reach high speeds. The contact angle α is defined as the angle between the line joining the contact points of the ball and the raceways in the radial plane, and a line perpendicular to the bearing axis. The load carrying capacity of angular contact ball bearings increases with the increasing of contact angle. Angular contact ball bearings are generally used in pairs or even more with spacers.

COKB® offers comprehensive ranges of angular contact ball bearings, which are available in:

– Single row and double row

– Open and sealed types

– Contact angle of 15, 30 or 40 degree

– Chrome steel, ceramic or hybrid materials

– Polyamide, steel and brass cage assemblies

Bearing Designations	Boundary Dimensions				Basic Load Rating		Limited Speed		distance of	Shoulder Dimension			Mass
	Boundary Dimensions				Basic Load Rating		Limited Speed		working points	Shoulder Dimension			Mass
	d	D	B	r	Cr	Cor	Grease	Oil	a	da	Da	ra	Approx
	d	D	B	(min.)	Cr	Cor	Grease	Oil	a	(min.)	(max.)	(max.)	Approx
6204BI	20	47	14	1	23.5	15.3	12000	16000	23.5	25.5	41.5	1	0.129
6205BI	25	52	15	1	26.7	18.8	10000	14000	270	30.5	46.5	1	0.156
6206BI	30	62	16	1	36.3	27.6	8600	12000	32.6	35.5	56.5	1	0.241
6207BI	35	72	17	1.1	47.1	36.7	7500	10000	37.5	42	65	1	0.351
6208BI	40	80	18	1.1	55.9	46.5	6600	9000	42.7	47	73	1	0.451
6209BI	45	85	19	1.1	58.7	51.3	6100	8400	45.9	52	78	1	0.512
6210BI	50	90	20	1.1	65.4	58	5700	7900	49	57	83	1	0.575
6211BI	55	100	21	1.5	80	72.3	5200	7100	54.3	63.5	91.5	1.5	0.763
6212BI	60	110	22	1.5	91.7	87.6	4600	6300	60.6	68.5	101.5	1.5	0.983
6213BI	65	120	23	1.5	95.1	90.1	4300	5900	64.8	73.5	111.5	1.5	1.23
6214BI	70	125	24	1.5	103	99	4100	5600	68.3	78.5	116.5	1.5	1.35
6215BI	75	130	25	1.5	108	108	3900	5300	71.8	83.5	121.5	1.5	1.47
6216BI	80	140	26	2	126	128	3600	4900	77	90	130	2	1.8
6217BI	85	150	28	2	146	150	3400	4600	82.3	95	140	2	2.25
6218BI	90	160	30	2	167	173	3100	4300	87.5	100	150	2	2.77
6219BI	95	170	32	2.1	190	198	3000	4100	92.8	107	158	2	3.37
6220BI	100	180	34	2.1	201	213	2800	3800	98	112	168	2	4.02
6222BI	110	200	38	2.1	242	275	2500	3400	108.5	122	188	2	5.64
6304BI	20	52	15	1.1	27.4	18.1	11000	15000	25.2	27	45	1	0.179
6305BI	25	62	17	1.1	40.8	28	9200	13000	30.5	32	55	1	0.285
6306BI	30	72	19	1.1	49.5	36.6	7800	11000	35.7	37	65	1	0.426
6307BI	35	80	21	1.5	61.2	46.4	7000	9600	40.3	43.5	71.5	1.5	0.565
6308BI	40	90	23	1.5	74.1	57.6	6200	8500	45.5	48.5	81.5	1.5	0.778
6309BI	45	100	25	1.5	87.9	70	5500	7600	50.8	53.5	91.5	1.5	1.04
6310BI	50	110	27	2	103	83.7	5000	6900	56	60	100	2	1.35
6311BI	55	120	29	2	119	98.5	4500	6200	61.3	65	110	2	1.72
6312BI	60	130	31	2.1	145	126	4100	5700	67.2	72	118	2	2.17
6313BI	65	140	33	2.1	164	145	3800	5300	72.1	77	128	2	2.36
6314BI	70	150	35	2.1	184	165	3600	4900	77	82	138	2	3.25
6315BI	75	160	37	2.1	200	187	3400	4600	82.3	87	148	2	3.9
6316BI	80	170	39	2.1	217	210	3100	4300	87.5	92	158	2	4.63
6317BI	85	180	41	3	234	234	3000	4100	92.8	99	166	2.5	5.45
6318BI	90	190	43	3	252	260	2800	3800	98	104	176	2.5	6.36
6319BI	95	200	45	3	269	287	2600	3600	103.3	109	186	2.5	7.37

Warranty Info

Four Point Contact Ball Bearings

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