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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Imperial Deep Groove Ball Bearing 3D
Imperial Deep Groove Ball Bearing Diagram
Unit of Measure
1 2 

Item #

Bore Diameter

Outside Diameter

Dimension B - Open

Dimension B - Shield

Dynamic (Cr) Basic Load Rating

CAD

R2 N/A 3.175 mm N/A 9.525 mm N/A 3.969 mm N/A 3.969 mm N/A 640 kN N/A
R2A N/A 3.175 mm N/A 12.7 mm N/A 4.366 mm N/A 4.366 mm N/A 640 kN N/A
R144 N/A 3.175 mm N/A 6.35 mm N/A 2.779 mm N/A 2.779 mm N/A 294 kN N/A
R155 N/A 3.969 mm N/A 7.938 mm N/A 2.779 mm N/A 3.175 mm N/A 392 kN N/A
R3 N/A 4.763 mm N/A 12.7 mm N/A 3.969 mm N/A 4.798 mm N/A 1310 kN N/A
R156 N/A 4.763 mm N/A 7.938 mm N/A 2.779 mm N/A 3.175 mm N/A 392 kN N/A
R166 N/A 4.763 mm N/A 9.525 mm N/A 3.175 mm N/A 3.175 mm N/A 715 kN N/A
R186 N/A 4.763 mm N/A 12.7 mm N/A 2.779 mm N/A 3.969 mm N/A 1313 kN N/A
1601 N/A 4.763 mm N/A 17.463 mm N/A 6.35 mm N/A 7.938 mm N/A 1511 kN N/A
R4 N/A 6.35 mm N/A 15.875 mm N/A 4.978 mm N/A 4.978 mm N/A 1470 kN N/A
R4A N/A 6.35 mm N/A 19.05 mm N/A 5.556 mm N/A 7.144 mm N/A 2410 kN N/A
R168 N/A 6.35 mm N/A 9.525 mm N/A 3.175 mm N/A 3.175 mm N/A 421 kN N/A
R188 N/A 6.35 mm N/A 12.7 mm N/A 3.175 mm N/A 4.763 mm N/A 833 kN N/A
1602 N/A 6.35 mm N/A 17.463 mm N/A 6.35 mm N/A 7.938 mm N/A 1511 kN N/A
R1810 N/A 7.938 mm N/A 12.7 mm N/A 3.969 mm N/A 3.969 mm N/A 882 kN N/A
1603 N/A 7.938 mm N/A 22.225 mm N/A 7.144 mm N/A 8.731 mm N/A 2547 kN N/A
1605 N/A 7.938 mm N/A 23.019 mm N/A 7.938 mm N/A 7.938 mm N/A 2547 kN N/A
R6 N/A 9.525 mm N/A 22.225 mm N/A 5.556 mm N/A 7.144 mm N/A 3350 kN N/A
1604 N/A 9.525 mm N/A 22.225 mm N/A 7.144 mm N/A 8.731 mm N/A 2547 kN N/A
1606 N/A 9.525 mm N/A 23.019 mm N/A 7.938 mm N/A 7.938 mm N/A 2547 kN N/A
1614 N/A 9.525 mm N/A 28.575 mm N/A 9.525 mm N/A 9.525 mm N/A 3921 kN N/A
1607 N/A 11.1125 mm N/A 23.019 mm N/A 7.938 mm N/A 7.938 mm N/A 3556 kN N/A
1615 N/A 11.1125 mm N/A 28.575 mm N/A 9.525 mm N/A 9.525 mm N/A 3921 kN N/A
1620 N/A 11.1125 mm N/A 34.925 mm N/A 11.1125 mm N/A 11.1125 mm N/A 5881 kN N/A
R8 N/A 12.7 mm N/A 28.575 mm N/A 6.35 mm N/A 7.938 mm N/A 5110 kN N/A
Unit of Measure
1 2