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


Bearing No. 32004JR

Specification data (main dimensions, etc.)

d(mm)20
D(mm)42
T(mm)15
B(mm)15
C(mm)12
r(min.)(mm)0.6
r1(min.)(mm)0.6
Basic load ratings : Cr(kN)34.1
Basic load ratings : C0r(kN)31.5
Fatigue load limit : Cu(kN)4.35
Limiting speeds(Grease lub.)(min-1)9700
Limiting speeds(Oil lub.)(min-1)13000
Load center spread : a(mm)10.5
Constant e0.37
Axial load factors : Y11.60
Axial load factors : Y00.88

Mounting dimensions,weight (reference)

da(min.)(mm)24.5 mm
db(max.)(mm)25 mm
Da(max.)(mm)37.5 mm
da(min.)(mm)35 mm
db(min.)(mm)39 mm
Sa(min.)(mm)3 mm
Sb(min.)(mm)3 mm
ra(max.)(mm)0.6 mm
rb(max.)(mm)0.6 mm
Mass(Refer.)(kg)0.102 kg
JTEKT

2026/07/04