Needle roller bearings

Contact Now

A needle roller bearing is a special type of roller bearing which uses long, thin cylindrical rollers resembling needles. Ordinary roller bearings' rollers are only slightly longer than their diameter, but needle bearings typically have rollers that are at least four times longer than their diameter.Like all bearings, they are used to reduce the friction of a rotating surface.

Compared to ball bearings and ordinary roller bearings, needle bearings have a greater surface area in contact with the races, so they can support a greater load. They are also thinner, so they require less clearance between the axle and the surrounding structure.

Needle bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.

Bearing Number	Bore Dia	Outer DIa	Width	Size
AST SCE2020 needle roller bearings	68/750	750x920x78	750	920
NSK FJT-1212 needle roller bearings	NJ422	110x280x65	110	280
NTN K55X63X27.8 needle roller bearings	6702LLF	15x21x4	15	21
NTN K19X24X25.5 needle roller bearings	68/800	800x980x82	800	980
17,000 mm x 26,000 mm x 20,000 mm NTN NK21/20R+IR17X21X20 needle roller bearings	672H	2x4x1.2	2	4
IKO RNA 4830 needle roller bearings	6810LLB	50x65x7	50	65
Timken WJ-162116 needle roller bearings	6819-2RS	95x120x13	95	120
Timken JTT-810 needle roller bearings	6315-2RS	75x160x37	75	160
ISO K155x163x26 needle roller bearings	6800Z	10x19x5	10,000	19,000
Timken K10X14X10H needle roller bearings	6308-NR	40x90x23	40	90
200 mm x 280 mm x 80 mm IKO NA 4940 needle roller bearings	6934-RS	170x230x28	170	230
KOYO HK1512 needle roller bearings	C0 (Normal)	55 mm	Non-Contact Seals	0.168 Kg