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
NTN K62X70X23.8 needle roller bearings 0 Inch | 0Millimeter Cast Iron Pillow Block Bearing 2 Bolt Pillow Block;
NTN K6X9X8 needle roller bearings Bearing Steel SCHAEFFLER GROUP No
NTN ARXJ38.5X56.5X4.2 needle roller bearings 0644075218184 1.772 Inch | 45 Mill Ball Bearing Yes
JNS RNA 4906 needle roller bearings Bearing Yes Double Row | Single 3.125 Inch | 79.38 M
JNS NK12/12M needle roller bearings 4547359123135 Straight Click here 8482.50.00.00
JNS NK100/26 needle roller bearings 8482.10.50.08 Ball Thrust Thrust Ball Bearings 0.56 Inch | 14.224 M
JNS RNA 4908UU needle roller bearings 0.72 NSK 0.0 NSK
JNS NK60/25 needle roller bearings Steel None 5500 rpm Self Centering
80 mm x 110 mm x 54 mm JNS NA 6916 needle roller bearings Bearings 0644075278560 B00308 N/A
JNS RNA 4826 needle roller bearings FAG BEARING No Ball B00308
20 mm x 37 mm x 16 mm JNS NAF 203716 needle roller bearings 7.087 Inch | 180 Mil Spherical Roller Bea Double Row Tapered
12 mm x 24 mm x 16 mm JNS NKI 12/16 needle roller bearings 5.8 Inch | 148 Milli 4.07 Inch | 103.378 12 8483.20.40.80
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