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  Deep groove ball bearings

Part Number

d - Bore

D - Outer Diameter

B - Width

Cr - Dynamic Radial Rating

Cor - Static Radial Rating

Reference speed

Limiting speed

W 61910-2Z 50 mm 72 mm 12 mm 12.5 N 11.6 N 19000 rpm 9500 rpm
W 61910-2RZ 50 mm 72 mm 12 mm 12.5 N 11.6 N 19000 rpm 9500 rpm
W 61910-2RS1 50 mm 72 mm 12 mm 12.5 N 11.6 N - 5600 rpm
W 61910 R-2Z 50 mm 72 mm 12 mm 12.5 N 11.6 N 19000 rpm 9500 rpm
W 61910 R 50 mm 72 mm 12 mm 12.5 N 11.6 N 19000 rpm 12000 rpm
W 61910 50 mm 72 mm 12 mm 12.5 N 11.6 N 19000 rpm 12000 rpm
W 61909-2Z 45 mm 68 mm 12 mm 12.1 N 10.8 N 20000 rpm 10000 rpm
W 61909-2RZ 45 mm 68 mm 12 mm 12.1 N 10.8 N 20000 rpm 10000 rpm
W 61909-2RS1 45 mm 68 mm 12 mm 12.1 N 10.8 N - 6000 rpm
W 61909 R-2Z 45 mm 68 mm 12 mm 12.1 N 10.8 N 20000 rpm 10000 rpm
W 61909 R 45 mm 68 mm 12 mm 12.1 N 10.8 N 20000 rpm 13000 rpm
W 61909 45 mm 68 mm 12 mm 12.1 N 10.8 N 20000 rpm 13000 rpm
W 61908-2Z 40 mm 62 mm 12 mm 11.9 N 9.8 N 24000 rpm 12000 rpm
W 61908-2RZ 40 mm 62 mm 12 mm 11.9 N 9.8 N 24000 rpm 12000 rpm
W 61908-2RS1 40 mm 62 mm 12 mm 11.9 N 9.8 N - 6700 rpm
W 61908 R-2Z 40 mm 62 mm 12 mm 11.9 N 9.8 N 24000 rpm 12000 rpm
W 61908 R 40 mm 62 mm 12 mm 11.9 N 9.8 N 24000 rpm 14000 rpm
W 61908 40 mm 62 mm 12 mm 11.9 N 9.8 N 24000 rpm 14000 rpm
W 61907-2Z 35 mm 55 mm 10 mm 9.36 N 7.65 N 26000 rpm 13000 rpm
W 61907-2RZ 35 mm 55 mm 10 mm 9.36 N 7.65 N 26000 rpm 13000 rpm