Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 32004JR

Specifications
(Boundary 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 e()0.37
Axial load factors : Y1()1.60
Axial load factors : Y0()0.88

Mounting dimensions

da(min.)(mm)24.5
db(max.)(mm)25
Da(max.)(mm)37.5
Da(min.)(mm)35
Db(min.)(mm)39
Sa(min.)(mm)3
Sb(min.)(mm)3
ra(max.)(mm)0.6
rb(max.)(mm)0.6

Refer.

(Refer.)Mass(kg) 0.102
JTEKT

2025/05/18