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 K10×14×13 needle roller bearings	7.5 in	Kevlar Packing Seal	Split Cylindrical Retained Type	Round Flange
80 mm x 110 mm x 25 mm JNS NKI 80/25 needle roller bearings	F684HZZ	4x9x4	4	9
INA NK110/40 needle roller bearings	6810-2RD	50x65x7	50	65
IKO TA 1215 Z needle roller bearings	6302ZZ	15x42x13	15	42
NTN RNA4902 needle roller bearings	6802NKE	15x24x5	15	24
NTN KV47X52X32.8ZW needle roller bearings	NN 3019 K	95x132x37	95	132
ZEN BK0910 needle roller bearings	FY 1.3/4 TF	44.45x39x14	44,45	39
45 mm x 62 mm x 25 mm JNS NKI 45/25 needle roller bearings	68/950/1200	950x1200x90	950,000	1200,000
Toyana RNA6904 needle roller bearings	6704-2RS	20x27x4	20	27
Timken B-2220 needle roller bearings	NH203 E	17x40x12	17	40
INA SCH710PP needle roller bearings	39250/39412	63.5x104.775x21.433	63,5	104,775
NBS K 22x28x23 needle roller bearings	6800	10x19x5	10	19