China excellent quality NKI series,Needle roller bearing,light series

Powerlong needle roller bearings with machined rings are made of carbon chromium bearing steel. We supplies these bearings with or without flanges on the outer ring, in a wide range of series and sizes. Powerlong also supplies them with or without an inner ring.

Bearings with an inner ring are used for applications where the shaft can not be hardened and ground,which have limited permissible axial displacement of the shaft relative to the housing,which can be extended,if needed,by using a wide inner ring.

NKI 5/12 TN	5	15	12	3800	4250	36000	0.01
NKI 5/16 TN	5	15	16	5010	5850	36000	0.02
NKI 6/12 TN	6	16	12	4400	5200	34000	0.01
NKI 6/16 TN	6	16	16	5720	7200	34000	0.02
NKI 7/12 TN	7	17	12	4570	5700	32000	0.01
NKI 7/16 TN	7	17	16	5940	8000	32000	0.02
NKI 9/12	9	19	12	6710	8150	30000	0.02
NKI 9/1 6	9	19	16	9130	12000	30000	0.02
NKI 10/16	10	22	16	10200	12500	28000	0.03
NKI 10/20	10	22	20	12800	16600	28000	0.04
NKI 12/16	12	24	16	11700	15300	26000	0.03
NKI 12/20	12	24	20	14500	20000	26000	0.04
NKI 15/16	15	27	16	13400	19000	24000	0.04
NKI 15/20	15	27	20	16500	25500	24000	0.05
NKI 17/16	17	29	16	13800	20400	22000	0.04
NKI 17/20	17	29	20	17200	27000	22000	0.05
NKI 20/16	20	32	16	15400	24500	19000	0.05
NKI 20/20	20	32	20	19000	32500	19000	0.06
NKI 22/16	22	34	16	15700	26000	17000	0.05
NKI 22/20	22	34	20	19400	34500	17000	0.07
NKI 25/20	25	38	20	22000	36500	15000	0.08
NKI 25/30	25	38	30	31900	60000	15000	0.12
NKI 28/20	28	42	20	23300	40500	14000	0.10
NKI 28/30	28	42	30	34100	65500	14000	0.15
NKI 30/20	30	45	20	24600	45000	13000	0.11
NKI 30/30	30	45	30	35800	72000	13000	0.17
NKI 32/20	32	47	20	25100	46500	12000	0.12
NKI 32/30	32	47	30	36900	76500	12000	0.18
NKI 35/20	35	50	20	26400	51000	11000	0.13
NKI 35/30	35	50	30	38000	83000	11000	0.19
NKI 38/20	38	53	20	27500	55000	11000	0.14
NKI 38/30	38	53	30	40200	90000	11000	0.21
NKI 40/20	40	55	20	27500	57000	10000	0.14
NKI 40/30	40	55	30	40200	93000	10000	0.22
NKI 42/20	42	57	20	29200	61000	10000	0.15
NKI 42/30	42	57	30	41800	98000	10000	0.22
NKI 45/25	45	62	25	38000	78000	9000	0.23
NKI 45/35	45	62	35	49500	110000	9000	0.32
NKI 50/25	50	68	25	40200	88000	8500	0.27
NKI 50/35	50	68	35	52300	122000	8500	0.38
NKI 55/25	55	72	25	41800	96500	7500	0.27
NKI 55/35	55	72	35	55000	134000	7500	0.38
NKI 60/25	60	82	25	44000	95000	6700	0.39
NKI 60/35	60	82	35	60500	146000	6700	0.55
NKI 65/25	65	90	25	52800	106000	6300	0.47
NKI 65/35	65	90	35	73700	163000	6300	0.66
NKI 70/25	70	95	25	56100	127000	5600	0.52
NKI 70/35	70	95	35	76500	190000	5600	0.74
NKI 75/25	75	105	25	69300	132000	5300	0.64
NKI 75/35	75	105	35	96800	200000	5300	0.91
NKI 80/25	80	110	25	72100	140000	5000	0.68
NKI 80/35	80	110	35	101000	216000	5000	0.96
NKI 85/26	85	115	26	73700	146000	4800	0.74
NKI 85/36	85	115	36	105000	232000	4800	1.05
NKI 90/26	90	120	26	76500	156000	4500	0.78
NKI 90/36	90	120	36	108000	250000	4500	1.10
NKI 95/26	95	125	26	78100	166000	4300	0.82
NKI 95/36	95	125	36	112000	265000	4300	1.15
NKI 100/30	100	130	30	96800	220000	4000	0.99
NKI 100/40	100	130	40	123000	305000	4000	1.35

Bearings without an inner ring are an excellent choice for compact bearing arrangements if the shaft can be hardened and ground.

Relubrication features:

Powerlong supplies needle roller bearings with different features to facilitate effective lubrication and relubrication.

Range of hardness of needle roller:

The range hardness of needle roller is 60~64 HRC