Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 32312JR

Specifications
(Boundary dimensions ...etc)

d(mm)60
D(mm)130
T(mm)48.5
B(mm)46
C(mm)37
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)306
Basic load ratings : C0r(kN)315
Fatigue load limit : Cu(kN)44.1
Limiting speeds(Grease lub.)(min-1)3100
Limiting speeds(Oil lub.)(min-1)4200
Load center spread : a(mm)32.3
Constant e()0.35
Axial load factors : Y1()1.74
Axial load factors : Y0()0.96

Mounting dimensions

da(min.)(mm)74
db(max.)(mm)74
Da(max.)(mm)118
Da(min.)(mm)107
Db(min.)(mm)120
Sa(min.)(mm)4
Sb(min.)(mm)11.5
ra(max.)(mm)2.5
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 2.99
JTEKT

2025/06/01