NAV Series Size 25x47x22mm Needle Roller Bearing NAV4005 for wheel hub

Needle roller bearing /cam follower is composed of a stud used as the tray of a group of rollers and a thick wall outer ring .The shoulder of the stud and the surface retaining ring on the stud form the guiding faces on the two sides of the outer ring.When the curve rollers are running on the plain tray or cam wheel,the inner stress on the rollers will increase due to the deformation of the outer ring.

Products Information

We offer almost of all types of the needle roller bearings good quality accompany with competitive prices.

This kind of bearing has multiple structural styles for the choice of customers, such as narrow & broad series, with or without inner races, cages, ribs or sealings. It can be designed according to the special structural requirements of customers as well.

Product Precision Accuracy:
Dimensional tolerance and geometrical accuracy is based on GB/T5801.
Mutual difference of needle roller diameter is 2μ M, and the precision grade is G2 (ISO GB309).
The diameter of inscribed circle conforms to tolerance grade F6 before the fitting of outer ring with cage and roller assembly.
Bearing radial running clearance conforms to the value defined by 0 group of GB/T4604.
Special precision grade is based on GB/T307.1
For fuller information on the special requirements of bearing running clearance, inscribed circle and precision grade, please contact this company.

Materials

Material for needle roller is GCr15 bearing steel, quench-hardening HRC60---65.
Material for inner and outer races is GCr15 bearing steel, quench-hardening HRC61---65.
Material for cages is quality low-carbon steel or reinforced nylon.

Product Overview

NO.	Size( mm )			Weight( g )
NAV4002	15	32	17	76
NAV4003	17	35	18	94
NAV4004	20	42	22	170
NAV4005	25	47	22	195
NAV4006	30	55	25	299
NAV4007	35	62	27	402
NAV4008	40	68	28	482
NAV4009	45	75	30	617
NAV4010	50	80	30	669
NAV4011	55	90	35	55
NAV4012	60	95	35	1087
NAV4013	65	100	35	1156
NAV4014	70	110	40	1666
NAV4015	75	115	45	1762
NAV4016	80	125	45	2450
NAV4017	85	130	45	2500