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 PK16×22×13.2X needle roller bearings	NTN	PK16×22×13.2X	1 pcs	Negotiable
Toyana NA4913 needle roller bearings	637400568429	12500 lbf	52100 Bearing Qualit	0.5000 in
JNS NK7/12 needle roller bearings	21 mm	30 mm	28.2 mm	63.5 mm
ISO RNA4832 needle roller bearings	0.02 KGS	168	Plastic	6200
75 mm x 105 mm x 40 mm JNS NA 5915 needle roller bearings	717905006968	Powdered Metal SAE 8	Click here	1-3/4 in
35 mm x 50 mm x 17 mm NTN NAO-35×50×17 needle roller bearings	244.475 mm	22222 EK	298.3 N·m	120.65 mm
Toyana NA4836 needle roller bearings	Steel	6012-2z/c3-skf	9500	60mm
Toyana K75x83x23TN needle roller bearings	Open Type	Brass	34.20 KGS	1450
NSK RLM152215 needle roller bearings	Round	Normal Duty	Lubrication Fitting	213 mm
JNS RNA 4905 needle roller bearings	12 mm	Single Row Non-Fill	Maximum of +120	21900 RPM
NSK J-2416 needle roller bearings	6.3125 in	3.3125 in	1-9/16 in	Lubrication Fitting
KOYO HK2210 needle roller bearings	S2000	070821	Top Angle	Triple Lip