needle roller bearings

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
NTN K58X64X16.3 needle roller bearings	6800LLB	10x19x5	10	19
Timken K22X26X13H needle roller bearings	6800ZZ	10x19x5	10	19
NBS K 6x9x8 TN needle roller bearings	EC-6208	40x80x18	40	80
IKO TLAW2538Z needle roller bearings	6213-2RS	65x120x23	65	120
30 mm x 45 mm x 17 mm IKO NAF 304517 needle roller bearings	674A	4x7x2	4	7
KOYO RS263119 needle roller bearings	68/950	950x1150x90	950,000	1150,000
Toyana RNA4905-2RS needle roller bearings	68/950	950x1150x90	950	1150
Toyana NA4860 needle roller bearings	68/800	800x980x82	800	980
JNS NK6/12M needle roller bearings	6703ZZ	17x23x4	17	23
NSK FJLT-3023 needle roller bearings	691	1x4x1.6	1	4
NSK RNA4920TT needle roller bearings	KZK 14x19x12	14	19	14 mm
KOYO K70X78X30H needle roller bearings	607ZZ	7x19x6	7	19