Standard Bearing

Product Detail

Needle roller bearings with three-point contact ball bearings withstand heavy radial loads and bidirectional axial loads at the same time during high-speed rotation.

?Noninterchangeable inner rings are separated at the center of the ball raceway surface, and must be firmly tightened against shaft in the axial direction.

?Axial clearance is 0.1-0.3 mm.

?When the axial load exceeds 25% of the radial load, the radial load will be induced onto the angular contact ball bearing and the bearing life will be affected. Therefore, the relationship between the two loads must be carefully considered.




Principal dimensions				Basic load ratings				Fatigue load limit			Speed ratings			Designation
				radial dynamic	radial static	axial dynamic	axial static	radial	axial		Reference speed	Limiting speed
ID	OD	H	C	C	C 0	C	C 0	P u	P u
mm				kN				kN			r/min
12	24	17.5	16	8.09	9.65	2.07	1.92	1.14		0.083	22000		26000	NKIB 5901
15	28	20	18	11.2	15.3	2.27	2.37	1.83		0.099	19000		22000	NKIB 5902
17	30	20	18	11.4	16.3	2.24	2.74	1.96		0.116	18000		20000	NKIB 5903
20	37	25	23	21.6	28	3.79	4.21	3.35		0.176	15000		17000	NKIB 5904
22	39	25	23	23.3	32	4.14	4.93	3.9		0.205	14000		15000	NKIB 59/22
25	42	25	23	24.2	34.5	4.24	5.26	4.15		0.224	13000		15000	NKIB 5905
30	47	25	23	25.5	39	4.54	6.32	4.65		0.268	11000		13000	NKIB 5906
35	55	30	27	31.9	54	5.83	8.42	6.7		0.355	9500		11000	NKIB 5907
40	62	34	30	42.9	71	7.17	10.9	8.8		0.467	8000		9500	NKIB 5908
45	68	34	30	45.7	78	7.47	12	9.65		0.513	7500		8500	NKIB 5909
50	72	34	30	47.3	85	7.74	13.7	10.6		0.579	7000		8000	NKIB 5910
55	80	38	34	57.2	106	9.27	16.7	13.2		0.697	6300		7000	NKIB 5911
60	85	38	34	60.5	114	9.58	18	14.3		0.77	6000		6700	NKIB 5912
65	90	38	34	61.6	120	9.96	19.2	14.6		0.816	5600		6300	NKIB 5913
70	100	45	40	84.2	163	13.2	25	20.8		1.05	5000		5600	NKIB 5914