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Needle roller bearing is a roller bearing with cylindrical rollers. Compared with its diameter, the rollers are thin and long. This kind of roller is called needle roller.

Part Number

d - Bore

D - Outer Diameter

B - Width

Cr - Dynamic Radial Rating

Cor - Static Radial Rating

Reference speed

Limiting speed

NA4900-2RSR-XL 10 mm 22 mm 14 mm 7700 N 6900 N - -
NK10/12-TV-XL - 17 mm - 5300 N 5500 N 29000 rpm 29500 rpm
NK10/16-TV-XL - 17 mm - 7000 N 7800 N 28500 rpm 29500 rpm
NKI10/16-XL 10 mm 22 mm 16 mm 11400 N 11500 N 16400 rpm 24600 rpm
NKI10/20-XL 10 mm 22 mm 20 mm 14500 N 15600 N 16100 rpm 24600 rpm
RNAO10X17X10-TV-XL - 17 mm - 5300 N 5500 N 28000 rpm 29500 rpm
NA4901-2RSR-XL 12 mm 24 mm 14 mm 8600 N 8300 N - -
NA4901-RSR-XL 12 mm 24 mm 14 mm 8600 N 8300 N - -
NA4901-XL 12 mm 24 mm 13 mm 10600 N 10900 N 14200 rpm 23200 rpm
NK12/12-XL - 19 mm - 7200 N 7100 N 22400 rpm 26500 rpm
NK12/16-XL - 19 mm - 10100 N 11000 N 21600 rpm 26500 rpm
NKI12/16-XL 12 mm 24 mm 16 mm 12800 N 13900 N 14500 rpm 23200 rpm
NKI12/20-XL 12 mm 24 mm 20 mm 16300 N 18800 N 14200 rpm 23200 rpm
RNAO12X22X12-TV-XL - 22 mm - 11300 N 9900 N 19700 rpm 26000 rpm
NK14/16-XL - 22 mm - 11400 N 11500 N 18600 rpm 24600 rpm
NK14/20-XL - 22 mm - 14500 N 15600 N 18300 rpm 24600 rpm
NA4902-2RSR-XL 15 mm 28 mm 14 mm 9700 N 10300 N - -
NA4902-RSR-XL 15 mm 28 mm 14 mm 9700 N 10300 N - -
NA4902-XL 15 mm 28 mm 13 mm 12000 N 13600 N 11200 rpm 21100 rpm
NA6902-XL 15 mm 28 mm 23 mm 19500 N 25500 N 10900 rpm 21100 rpm