Nki Style Standard Needle Roller Bearing With Inner Ring Factory

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The NKI series needle roller bearings consist of machined bearing rings and needle roller and cage assemblies with cages made from either plastic or deep drawn steel strip. They have an inner ring while series NK is supplied without an inner ring. The bearings without an inner ring are most suitable if the shaft can be hardened and ground, which depends on the application.

In contrast to the outer cups of drawn cup needle roller bearings, which are produced by forming methods, the bearing rings are machined. Due to their non-locating bearing function, the bearings cannot guide the shaft axially in any direction.

Since the inner ring has no flange, it can be installed in the inner ring, outer ring, full set of needle and cage respectively, without limiting the axial displacement of the shaft or the shell. Because of the use of cage to separate the needle roller and reduce friction, it can be used in components with high speed.

In addition, the standard cages for NKI series needle roller bearing are made from sheet steel or plastic (polyamide PA66). Bearings with a plastic cage have the suffix TV.

Application

The needle roller bearings are widely used in the steering transmissions, drivetrain components, sport vehicles, mechanical pumps, industrial machinery etc.

Bearing Model	Dimensions(mm)					permisive offset (s)	Basic Load Rating(N)		Limiting Speed(rpm)	Weight(Kg)
Bearing Model	d	F	D	B	fmin	permisive offset (s)	Dyn.C	Stat.Co	Oil	Weight(Kg)
NKI5/12	5	8	15	12	0.3	1.5	3.2	3.28	25600	0.012
NKI6/12	6	9	16	12	0.3	1.5	3.64	4	24000	0.013
NKI6/16	6	9	16	16	0.3	2	4.4	5.12	24000	0.017
NKI7/12	7	10	17	12	0.3	1.5	3.64	4.08	22400	0.014
NKI7/16	7	10	17	16	0.3	2	4.36	5.16	22400	0.018
NKI9/12	9	12	19	12	0.3	1.5	4	4.88	20800	0.018
NKI9/16	9	12	19	16	0.3	2	7.2	8.8	20800	0.022
NKI10/16	10	14	22	16	0.3	0.5	8.24	9.2	19200	0.03
NKI10/20	10	14	22	20	0.3	0.5	10.4	12.48	19200	0.038
NKI12/16	12	16	24	16	0.3	0.5	9.76	11.92	18400	0.033
NKI12/20	12	16	24	20	0.3	0.5	11.68	15.04	18400	0.042
NKI15/16	15	19	27	16	0.3	0.5	10.64	13.92	16800	0.039
NKI15/20	15	19	27	20	0.3	0.5	12.8	17.76	16800	0.045
NKI17/16	17	21	29	16	0.3	0.5	11	15	15200	0.042
NKI17/20	17	21	29	20	0.3	0.5	14.64	21.68	15200	0.053
NKI20/16	20	24	32	161	0.3	0.5	12.16	17.84	13600	0.049
NKI20/20	20	24	32	20	0.3	0.5	14.88	23.04	13600	0.061
NKI22/16	22	26	34	16	0.3	0.5	12.48	18.88	12000	0.046
NKI22/20	22	26	34	20	0.3	0.5	15.28	24.4	12000	0.064
NKI25/20	25	29	38	20	0.3	1	17.76	27.2	11200	0.079
NKI25/30	25	29	38	30	0.3	1.5	22	40.4	11200	0.123
NKI28/20	28	32	42	20	0.3	1	18.8	30	10400	0.096
NKI28/30	28	32	42	30	0.3	1.5	27.2	48.4	10400	0.146
NKI30/20	30	35	45	20	0.3	0.5	19.84	33.2	8800	0.112
NKI30/30	30	35	45	30	0.3	1	28.8	53.2	8800	0.171
NKI32/20	32	37	47	20	0.3	0.5	20.24	34.8	8800	0.117
NKI32/30	32	37	47	30	0.3	1	29.2	55.6	8800	0.17
NKI35/20	35	40	50	20	0.3	0.5	21.12	37.6	8000	0.13
NKI35/30	35	40	50	30	0.3	1	30.8	60.8	8000	0.193
NKI38/20	38	43	53	20	0.3	0.5	22	40.8	7600	0.134
NKI38/30	38	43	53	30	0.3	1	32	65.6	7600	0.207
NKI40/20	40	45	55	20	0.3	0.5	22.4	42	7200	0.143
NKI40/30	40	45	55	30	0.3	1	32.8	68.4	7200	0.216
NKI42/20	42	47	57	20	0.3	0.5	23	44.4	6800	0.148
NKI42/30	42	47	57	30	0.3	1	34	73.2	6800	0.222
NKI45/25	45	50	62	25	0.6	1.5	30.8	59.6	6400	0.229
NKI45/35	45	50	62	35	0.6	2	40.8	84.8	6400	0.322
NKI50/25	50	55	68	25	0.6	1.5	32.8	65.6	6000	0.271
NKI50/35	50	55	68	35	0.6	2	43.2	94.4	6000	0.379
NKI55/25	55	60	72	25	0.6	1.5	32.8	68	5200	0.271
NKI55/35	55	60	72	35	0.6	2	45.6	104	5200	0.379
NKI60/25	60	68	82	25	0.6	1	35.6	71.2	4800	0.393
NKI60/35	60	68	82	35	0.6	1	50.4	111.2	4800	0.551
NKI65/25	65	73	90	25	1	1	43.2	80	4400	0.466
NKI65/35	65	73	90	35	1	1	61.2	124.8	4400	0.66
NKI70/25	70	80	95	25	1	0.8	45.6	95.2	4000	0.525
NKI70/35	70	80	95	35	1	0.8	63.6	147.2	4000	0.738
NKI75/25	75	85	105	25	1	1	56.4	98.4	3760	0.642
NKI75/35	75	85	105	35	1	1	80	154.4	3760	0.853
NKI80/25	80	90	110	25	1	1	57.2	102.4	3520	0.68
NKI80/35	80	90	110	35	1	1	83.2	166.4	3520	0.959
NKI85/26	85	95	115	261	1	1.5	59.6	109.6	3360	0.743
NKI85/36	85	95	115	36	1	1.5	86.4	178.4	3360	1.05
NKI90/26	90	100	120	261	1	1.5	58,8	109.6	3200	0.781
NKI90/36	90	100	120	36	1	1.5	85.6	178.4	3200	1.09
NKI95/26	95	105	125	26	1	1.5	61.2	117.6	3040	0.819
NKI95/36	95	105	125	36	1	1.5	88.8	190.4	3040	1.15
NKI100/30	100	110	130	30	1.1	1.5	78	163.2	2880	0.99
NKI100/40	100	110	130	40	1.1	2	103.2	233,6	2880	1.34
NKI110/40	110	120	140	40	1.1	1	90.4	214.4	2640	1.49
NKI120/40	120	130	150	40	1.1	1	92.8	226.4	2480	1.57
NKI130/32	130	145	170	32	1.5	1	88.8	190.4	2240	1.9
NKI130/42	130	145	170	42	1.5	1	122.4	288	2240	2.54
NKI140/32	140	155	180	32	1.5	1	91.2	201.6	2080	2.04
NKI140/42	140	155	180	42	1.5	1	124.8	304	2080	2.69
NKI150/32	150	165	190	32	1.5	1	93.6	212	1920	2.32
NKI150/42	150	165	190	42	1.5	1	128	320	1920	2.84