Deep groove ball bearing

Model

d

D

B

Cr

Cor

Reference speed

Extreme speed

W 637/4 XR-2Z 4 mm 8 mm 3 mm 0.225 N 0.072 N - 75000
W 637/5 X-2Z 5 mm 9 mm 3 mm 0.247 N 0.085 N - 67000
W 637/5 X-2ZS 5 mm 9 mm 3 mm 0.247 N 0.085 N - 67000
W 637/5 XR-2Z 5 mm 9 mm 3 mm 0.247 N 0.085 N - 67000
W 637/5 XR-2ZS 5 mm 9 mm 3 mm 0.247 N 0.085 N - 67000
W 637/8 R-2Z 8 mm 12 mm 3.5 mm 0.312 N 0.14 N - 53000
W 637/8 R-2ZS 8 mm 12 mm 3.5 mm 0.312 N 0.14 N - 50000
W 637/8 X 8 mm 14 mm 3.5 mm 0.462 N 0.193 N - 60000
W 637/8 XR 8 mm 14 mm 3.5 mm 0.462 N 0.193 N - 60000
W 637/8-2Z 8 mm 12 mm 3.5 mm 0.312 N 0.14 N - 53000
W 637/8-2ZS 8 mm 12 mm 3.5 mm 0.312 N 0.14 N - 50000
W 637/9 R-2Z 9 mm 14 mm 4.5 mm 0.52 N 0.236 N - 45000
W 637/9-2ZS 9 mm 14 mm 4.5 mm 0.52 N 0.236 N - 45000
W 637-2RS1 7 mm 26 mm 9 mm 3.97 N 1.96 N - 19000
W 637-2RZ 7 mm 26 mm 9 mm 3.97 N 1.96 N - 32000
W 637-2Z 7 mm 26 mm 9 mm 3.97 N 1.96 N - 32000
W 638 8 mm 28 mm 9 mm 3.97 N 1.96 N - 40000
W 638/1 1 mm 3 mm 1.5 mm 0.052 N 0.012 N - 150000
W 638/1.5 R-2Z 1.5 mm 4 mm 2 mm 0.062 N 0.016 N - 110000
W 638/1.5-2Z 1.5 mm 4 mm 2 mm 0.062 N 0.016 N - 110000