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-With-Inner-Ring---NA-Series---3D
Unit of Measure
1 2 3 4 

Item #

Bore Diameter

Outside Diameter

Dimension C

Dynamic (Cr) Basic Load Rating

CAD

NKI45/35 N/A 45 mm N/A 62 mm N/A 35 mm N/A 41500 N N/A
NKIS45 N/A 45 mm N/A 72 mm N/A 22 mm N/A 43000 N N/A
NA4910 N/A 50 mm N/A 72 mm N/A 22 mm N/A 53000 N N/A
NA6910 N/A 50 mm N/A 72 mm N/A 40 mm N/A 82000 N N/A
NKI50/25 N/A 50 mm N/A 68 mm N/A 25 mm N/A 32000 N N/A
NKI50/35 N/A 50 mm N/A 68 mm N/A 35 mm N/A 53000 N N/A
NKIS50 N/A 50 mm N/A 80 mm N/A 28 mm N/A 60000 N N/A
NA4911 N/A 55 mm N/A 80 mm N/A 25 mm N/A 65000 N N/A
NA6911 N/A 55 mm N/A 80 mm N/A 45 mm N/A 102000 N N/A
NKI55/35 N/A 55 mm N/A 72 mm N/A 35 mm N/A 48000 N N/A
NA4912 N/A 60 mm N/A 85 mm N/A 25 mm N/A 68000 N N/A
NA6912 N/A 60 mm N/A 85 mm N/A 45 mm N/A 106000 N N/A
NKI60/25 N/A 60 mm N/A 82 mm N/A 25 mm N/A 35500 N N/A
NKIS60 N/A 60 mm N/A 90 mm N/A 28 mm N/A 65000 N N/A
NA4913 N/A 65 mm N/A 90 mm N/A 25 mm N/A 69000 N N/A
NA6913 N/A 65 mm N/A 90 mm N/A 45 mm N/A 108000 N N/A
NKI65/25 N/A 65 mm N/A 90 mm N/A 25 mm N/A 53000 N N/A
NA4914 N/A 70 mm N/A 100 mm N/A 30 mm N/A 95000 N N/A
NA6914 N/A 70 mm N/A 100 mm N/A 54 mm N/A 145000 N N/A
NKI70/35 N/A 70 mm N/A 95 mm N/A 35 mm N/A 78000 N N/A
NA4915 N/A 75 mm N/A 105 mm N/A 30 mm N/A 97000 N N/A
NA6915 N/A 75 mm N/A 105 mm N/A 54 mm N/A 147000 N N/A
NA4916 N/A 80 mm N/A 110 mm N/A 30 mm N/A 101000 N N/A
NA6916 N/A 80 mm N/A 110 mm N/A 54 mm N/A 153000 N N/A
NKI80/35 N/A 80 mm N/A 110 mm N/A 35 mm N/A 103000 N N/A
Unit of Measure
1 2 3 4