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30X47X17Mm Needle Roller Bearings

Material: Chrome Steel, Carbon Steel, Stainless Steel

Brand Name: Timken SKF NSK NTN Koyo NACHI & OEM

Quality Standard: SGS ISO9001

Supply Ability: 1,000,000 pcs/Day In stock Fast Delivery!

Payment Terms: T/T, L/C, Paypal, Western UnionPackage：

Plastic bag + single box + carton + plywood pallet

Neutral industrial packaging + neutral carton packaging + pallet

According to customer requirements

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Product Details

Needle roller bearing is a common mechanical part, which is mainly used to support the movement of the rotating shaft. The working principle of the needle roller bearing is to use the rolling body (needle roller) to roll between the inside and outside, thereby reducing friction and resistance, so that the bearing can withstand larger loads and rotational speeds.

The structure of the needle roller bearing is relatively simple, consisting of an inner ring, an outer ring, a needle roller and a cage. The inner ring and the outer ring are the main parts of the bearing, which are respectively fixed on the shaft and the housing. The needle roller is the rolling element of the bearing, which rolls between the inner and outer rings, bearing axial and radial loads. The cage is used to fix the position of the needle roller to prevent the needle from colliding with each other and falling off.

New domestic models	Old domestic model	Inner diameter (mm)	Outer diameter (mm)	Width(mm)	Cr(kN)	Cor(kN)	Grease lubrication speed (r/min)	Oil lubrication speed (r/min)	Weight (kg)
NAV4003	4074103	17	35	18	–	–	–	–	0.098
NAV4004	4074104	20	42	22	–	–	–	–	0.175
RNAV4016	4084116	100.3	125	45	–	–	–	–	0
RNAV4015	4084115	92.7	115	40	–	–	–	–	1.025
RNAV4014	4084114	88	110	40	–	–	–	–	0.982
RNAV4013	4084113	80.3	100	35	–	–	–	–	0.692
RNAV4012	4084112	74.6	95	35	–	–	–	–	1.025
RNAV4011	4084111	69.8	90	35	–	–	–	–	0.645
RNAV4010	4084110	62.1	80	30	–	–	–	–	0.426
RNAV4009	4084109	57.4	75	30	–	–	–	–	0.39
RNAV4008	4084108	51.6	68	28	–	–	–	–	0.304
RNAV4007	4084107	45.9	62	27	–	–	–	–	0.259
RNAV4006	4084106	40.1	55	25	–	–	–	–	0.193
RNAV4005	4084105	33.5	47	22	–	–	–	–	0.129
RNAV4920	4084920E	115	140	40	–	–	–	–	0
RNAV4919	4084919E	110	130	35	–	–	–	–	0
RNAV4918	4084918E	105	125	35	–	–	–	–	0
RNAV4916	4084916E	90	110	30	–	–	–	–	0
RNAV4914	4084914E	80	100	30	–	–	–	–	0
RNAV4912	4084912E	68	85	25	–	–	–	–	0
RNAV4910	4084910E	58	72	22	–	–	–	–	0
RNAV4909	4084909E	52	68	22	–	–	–	–	0
RNAV4908	4084908E	48	62	22	–	–	–	–	0
RNAV4907	4084907E	42	55	20	–	–	–	–	0
RNAV4906	4084906E	35	47	17	–	–	–	–	0
RNAV4905	4084905E	30	42	17	–	–	–	–	0
RNAV4904	4084904E	25	37	17	–	–	–	–	0
RNAV4903	4084903E	22	30	13	–	–	–	–	0
RNAV4902	4084902E	20	28	13	–	–	–	–	0
NA6901	6544901	12	24	22	16.3	21.7	27000	–	0.045
NA6902	65449O2	15	28	23	18.4	27.1	22000	–	0.062
NA6903	6544903	17	30	23	18.9	29	20000	–	0.067
NA6904	65449O4	20	37	30	35.4	48.9	17000	–	0.137
NA6905	6544905	25	42	30	40.1	60.7	15000	–	0.162
NA6906	6544906	30	47	30	42.7	69	13000	–	0.186
NA6907	6254907	35	55	36	51.4	85.1	11000	–	0.297
NA6908	6254908	40	62	40	66.7	115	9400	–	0.415
NA6909	6254909	45	68	40	70.7	127	8800	–	0.496
RNA6901	6644901	12	24	22	16.3	21.7	27000	–	0.03
RNA6902	6644902	15	28	23	18.4	27.1	22000	–	0.038
RNA6903	6644903	17	30	23	18.9	29	20000	–	0.04
RNA6904	6644904	20	37	30	35.4	48.9	17000	–	0.096