BM Series

20-BM Series

BM Series: Angular contact ball bearings engineered for high rigidity and precision. Features a special internal design with a 40° contact angle, making them ideal for high-speed machine tool spindles.

  • BM Series
  • BM Series
  • BM Series

Dimension and Parameters

Principal Dimensions(mm)
d :20
D :52
B :15
Designation :7304BM
Basic Load Ratlngs(kN)
Cr :17.3
Cor :9.6
Limited Speed(rpm)
Grease :11000
Oil :15000