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Needle roller bearings

Needle roller bearing is a bearing with cylindrical roller. The diameter of cylindrical roller is smaller than its length. The improved roller / raceway profile prevents stress peaks, thereby extending the service life of the bearing.

Basic dimensions							Basic load rating		Speed ratings		Mass	Model
							dynamic	static	Reference speed	Limiting speed		Bearing No.
Fw [mm]	d [mm]	Ew [mm]	D [mm]	B [mm]	C [mm]	U [mm]	C [kN]	C0 [kN]	[r/min]	[r/min]	[kg]
47		52				27	30.24	74.7	8100	9000	0.051	K 47X52X27 Bearing
50		55				13.5	15.84	32.85	7650	8550	0.03	K 50X55X13.5 Bearing
50		55				20	22.95	54	7650	8550	0.043	K 50X55X20 Bearing
50		55				30	33.66	88.2	7650	8550	0.065	K 50X55X30 Bearing
50		57				18	28.71	57.6	7200	8100	0.047	K 50X57X18 Bearing
50		58				20	30.69	55.8	7200	8100	0.075	K 50X58X20 Bearing
50		58				25	37.62	73.35	7200	8100	0.09	K 50X58X25 Bearing
52		57				12	15.48	32.85	7200	8100	0.024	K 52X57X12 Bearing
55		60				20	24.3	60.3	6750	7650	0.04	K 55X60X20 Bearing
55		60				30	35.64	97.2	6750	7650	0.071	K 55X60X30 Bearing
55		62				18	30.69	63.9	6750	7650	0.052	K 55X62X18 Bearing
55		63				20	34.2	67.5	6750	7650	0.067	K 55X63X20 Bearing
55		63				25	44.55	93.6	6750	7650	0.08	K 55X63X25 Bearing
55		63				32	53.46	116.1	6750	7650	0.1	K 55X63X32 Bearing
58		65				18	30.24	63.9	6300	7200	0.052	K 58X65X18 Bearing
60		65				20	25.29	64.8	6300	7200	0.052	K 60X65X20 Bearing
60		65				30	37.17	104.4	6300	7200	0.077	K 60X65X30 Bearing
60		66				40	49.5	135	6300	7200	0.12	K 60X66X40 ZW Bearing
60		68				20	37.62	77.85	6030	6750	0.071	K 60X68X20 Bearing
60		68				23	42.57	91.8	6030	6750	0.094	K 60X68X23 Bearing
60		68				25	46.08	100.8	6030	6750	0.089	K 60X68X25 Bearing
65		70				20	26.28	68.85	5670	6750	0.056	K 65X70X20 Bearing
65		70				30	37.62	112.5	5670	6750	0.083	K 65X70X30 Bearing
65		73				23	39.6	85.5	5670	6300	0.11	K 65X73X23 Bearing
65		73				30	48.51	112.5	5670	6300	0.14	K 65X73X30 Bearing
68		74				20	30.24	74.7	5400	6300	0.071	K 68X74X20 Bearing
68		74				30	40.14	106.2	5400	6300	0.1	K 68X74X30 Bearing
68		74				35	42.12	112.5	5400	6300	0.12	K 68X74X35 ZW Bearing
70		76				20	30.69	77.85	5400	6030	0.071	K 70X76X20 Bearing
70		76				30	45.09	126	5400	6030	0.11	K 70X76X30 Bearing