Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series


Bearing No. 32315JR

Specification data (main dimensions, etc.)

d(mm)75
D(mm)160
T(mm)58
B(mm)55
C(mm)45
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)454
Basic load ratings : C0r(kN)481
Fatigue load limit : Cu(kN)64.6
Limiting speeds(Grease lub.)(min-1)2500
Limiting speeds(Oil lub.)(min-1)3300
Load center spread : a(mm)40.0
Constant e0.35
Axial load factors : Y11.74
Axial load factors : Y00.96

Mounting dimensions,weight (reference)

da(min.)(mm)89 mm
db(max.)(mm)91 mm
Da(max.)(mm)148 mm
da(min.)(mm)133 mm
db(min.)(mm)149 mm
Sa(min.)(mm)4 mm
Sb(min.)(mm)13 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)5.41 kg
JTEKT

2026/07/01