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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 61707-2RS1 35 mm 44 mm 5 mm 1.06 N 0.915 N - 8500 rpm
W 61707 35 mm 44 mm 5 mm 1.06 N 0.915 N 30000 rpm 19000 rpm
W 61706-2RZ 30 mm 37 mm 4 mm 0.65 N 0.53 N 36000 rpm 18000 rpm
W 61706 R 30 mm 37 mm 4 mm 0.65 N 0.53 N 36000 rpm 22000 rpm
W 61706 30 mm 37 mm 4 mm 0.65 N 0.53 N 36000 rpm 22000 rpm
W 61705-2RZ 25 mm 32 mm 4 mm 0.618 N 0.465 N 43000 rpm 20000 rpm
W 61705-2RS1 25 mm 32 mm 4 mm 0.618 N 0.465 N - 12000 rpm
W 61705 R 25 mm 32 mm 4 mm 0.618 N 0.465 N 43000 rpm 26000 rpm
W 61705 25 mm 32 mm 4 mm 0.618 N 0.465 N 43000 rpm 26000 rpm
W 61704-2ZS 20 mm 27 mm 4 mm 0.585 N 0.39 N 50000 rpm 26000 rpm
W 61704-2RS1 20 mm 27 mm 4 mm 0.585 N 0.39 N - 14000 rpm
W 61704 R-2ZS 20 mm 27 mm 4 mm 0.585 N 0.39 N 50000 rpm 26000 rpm
W 61704 R 20 mm 27 mm 4 mm 0.585 N 0.39 N 50000 rpm 32000 rpm
W 61704 20 mm 27 mm 4 mm 0.585 N 0.39 N 50000 rpm 32000 rpm
W 61703-2Z 17 mm 23 mm 4 mm 0.559 N 0.34 N 60000 rpm 30000 rpm
W 61703-2RS1 17 mm 23 mm 4 mm 0.559 N 0.34 N - 17000 rpm
W 61703 R-2ZS 17 mm 23 mm 4 mm 0.559 N 0.34 N 60000 rpm 30000 rpm
W 61703 R 17 mm 23 mm 4 mm 0.559 N 0.34 N 60000 rpm 38000 rpm
W 61703 17 mm 23 mm 4 mm 0.559 N 0.34 N 60000 rpm 38000 rpm
W 61702-2Z 15 mm 21 mm 4 mm 0.527 N 0.29 N 67000 rpm 32000 rpm