needle roller bearings

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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
KOYO HJ-729636 needle roller bearings 10.0000 to 11.5000 i Round Medium Duty 3.0000 in
NTN K55X61X19 needle roller bearings 2930 1200 22340embw33w45a-timk In Stock
ISO NK6/12 needle roller bearings UETM200 Lubrication Fitting 0.7500 in Accu-Loc
100 mm x 130 mm x 30 mm ISO NKI100/30 needle roller bearings 7 mm 97 mm 119 mm 3.5 mm
SKF K185x195x37 needle roller bearings Steel Without Snap Ring 95 mm 32 mm
Toyana K115X125X35 needle roller bearings 0.6250 in Female Threaded with Economy/General 5/8-18
NSK J-2824 needle roller bearings Stainless Steel 1 in 1 ft Plain
NBS AXK 120155 needle roller bearings 3461 lb 1.99 in Round 5500 RPM
KOYO K18X22X13H needle roller bearings Non-Expansion Bearin 4.7188 in Ductile Iron Round
NTN KJ35X42X30 needle roller bearings 170mm 0.02 KGS 58mm Open Type
NSK RLM607240 needle roller bearings Click here M10 Non-Expansion Bearin Normal Duty
INA BCE24-TN needle roller bearings 208 Set Screw 17.48 mm 40 mm