Koyo
FOR REFERENCE ONLY
  • Spherical roller bearings
  • Spherical roller bearings


Bearing No. 21312RZ

Specification data (main dimensions, etc.)

d(mm)60
D(mm)130
B(mm)31
r(min.)(mm)2.1
Basic load ratings : Cr(kN)210
Basic load ratings : C0r(kN)193
Fatigue load limit : Cu(kN)15.1
Limiting speeds(Grease lub.)(min-1)3900
Limiting speeds(Oil lub.)(min-1)5100
Constant e0.24
Axial load factors : Y12.78
Axial load factors : Y24.14
Axial load factors : Y02.72

Mounting dimensions,weight (reference)

da(min.)(mm)72 mm
Da(max.)(mm)118 mm
ra(max.)(mm)2 mm
Mass(Refer.)(kg)2.11 kg
JTEKT

2026/07/07