Model

Model search

  • Model query
  • d - Bore (mm)
  • D - Outer Diameter (mm)
  • B - Width (mm)
  • Cr - Dynamic Radial Rating
  • Cor - Static Radial Rating

Tel:18663012692

E-mail:markq.niu@vip.163.com

  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 638/8 R-2Z 8 mm 16 mm 6 mm 0.715 N 0.3 N 90000 rpm 45000 rpm
W 638/5-2Z 5 mm 11 mm 5 mm 0.403 N 0.143 N 120000 rpm 60000 rpm
W 638/5-2RZ 5 mm 11 mm 5 mm 0.403 N 0.143 N 120000 rpm 60000 rpm
W 638/5-2RS1 5 mm 11 mm 5 mm 0.403 N 0.143 N - 34000 rpm
W 638/5 R-2Z 5 mm 11 mm 5 mm 0.403 N 0.143 N 120000 rpm 60000 rpm
W 638/5 R-2RS1 5 mm 11 mm 5 mm 0.403 N 0.143 N - 34000 rpm
W 638/4-2Z 4 mm 9 mm 4 mm 0.364 N 0.114 N 140000 rpm 70000 rpm
W 638/4-2RZ 4 mm 9 mm 4 mm 0.364 N 0.114 N 140000 rpm 70000 rpm
W 638/4-2RS1 4 mm 9 mm 4 mm 0.364 N 0.114 N - 40000 rpm
W 638/4 XR-2Z 4 mm 10 mm 4 mm 0.553 N 0.245 N 130000 rpm 63000 rpm
W 638/4 XR-2RS1 4 mm 10 mm 4 mm 0.553 N 0.245 N - 36000 rpm
W 638/4 X-2Z 4 mm 10 mm 4 mm 0.553 N 0.245 N 130000 rpm 63000 rpm
W 638/4 X-2RZ 4 mm 10 mm 4 mm 0.553 N 0.245 N 130000 rpm 63000 rpm
W 638/4 X-2RS1 4 mm 10 mm 4 mm 0.553 N 0.245 N - 36000 rpm
W 638/4 R-2Z 4 mm 9 mm 4 mm 0.364 N 0.114 N 140000 rpm 70000 rpm
W 638/4 R-2RS1 4 mm 9 mm 4 mm 0.364 N 0.114 N - 40000 rpm
W 638/3-2Z 3 mm 7 mm 3 mm 0.178 N 0.057 N 160000 rpm 80000 rpm
W 638/3-2RS1 3 mm 7 mm 3 mm 0.178 N 0.057 N - 45000 rpm
W 638/3 R-2Z 3 mm 7 mm 3 mm 0.178 N 0.057 N 160000 rpm 80000 rpm
W 638/3 R-2RS1 3 mm 7 mm 3 mm 0.178 N 0.057 N - 45000 rpm