WD Bearing Group
WD Bearings America LLC
5845 W 82nd Street, Suite 102,
Indianapolis, IN 46278.
Tel: +1 317 661 3293
Email: Contact@wd-bearing.com
WD Waelzlager GmBH
Ost Strasse 74A 40724,
Hilden, Germany
Tel: +49 2103 968 6352
Email: Contact@wd-bearing.com
WD Bearing Group
No. 100, Zhenyang Road,
Jiangyin, Wuxi, P.R China, 214401
Tel: 0510-8655 7067
Fax: 0510-8655 7065
Email: Contact@wd-bearing.com
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Heavy-Duty-Needle-Roller-Bearings-Without-Inner-Ring---NK50-Series---3D
Unit of Measure
1 2 3 4 

Item #

Outside Diameter

Dimension C

Dynamic (Cr) Basic Load Rating

CAD

RNA6902 N/A 28 mm N/A 23 mm N/A 10800 N N/A
NK22/16 N/A 30 mm N/A 16 mm N/A 13500 N N/A
NKS22 N/A 35 mm N/A 20 mm N/A 21500 N N/A
RNA4903 N/A 30 mm N/A 13 mm N/A 12000 N N/A
RNA6903 N/A 30 mm N/A 23 mm N/A 14000 N N/A
NK25/16 N/A 33 mm N/A 16 mm N/A 12900 N N/A
NK25/20 N/A 33 mm N/A 20 mm N/A 16800 N N/A
NKS25 N/A 38 mm N/A 20 mm N/A 25800 N N/A
RNA4904 N/A 37 mm N/A 17 mm N/A 11900 N N/A
RNA6904 N/A 37 mm N/A 30 mm N/A 26000 N N/A
NK26/16 N/A 34 mm N/A 16 mm N/A 15000 N N/A
NK26/20 N/A 34 mm N/A 20 mm N/A 17000 N N/A
NKS28 N/A 42 mm N/A 20 mm N/A 25900 N N/A
RNA283833 N/A 38 mm N/A 33 mm N/A 33000 N N/A
NK30/20 N/A 40 mm N/A 20 mm N/A 20600 N N/A
NK30/30 N/A 40 mm N/A 30 mm N/A 31500 N N/A
RNA4905 N/A 42 mm N/A 17 mm N/A 23600 N N/A
RNA6905 N/A 42 mm N/A 30 mm N/A 39000 N N/A
NK32/20 N/A 42 mm N/A 20 mm N/A 22600 N N/A
NKS32 N/A 47 mm N/A 22 mm N/A 31000 N N/A
RNA49/28 N/A 45 mm N/A 17 mm N/A 17400 N N/A
RNA69/28 N/A 45 mm N/A 30 mm N/A 39500 N N/A
RNA4906 N/A 47 mm N/A 17 mm N/A 17000 N N/A
RNA6906 N/A 47 mm N/A 30 mm N/A 35000 N N/A
NK40/20 N/A 50 mm N/A 20 mm N/A 26500 N N/A
Unit of Measure
1 2 3 4