Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30313CR

Specifications
(Boundary dimensions ...etc)

d(mm)65
D(mm)140
T(mm)36
B(mm)33
C(mm)25
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)241
Basic load ratings : C0r(kN)227
Fatigue load limit : Cu(kN)35.1
Limiting speeds(Grease lub.)(min-1)2900
Limiting speeds(Oil lub.)(min-1)3900
Load center spread : a(mm)34.3
Constant e()0.55
Axial load factors : Y1()1.10
Axial load factors : Y0()0.60

Mounting dimensions

da(min.)(mm)79
db(max.)(mm)81
Da(max.)(mm)128
Da(min.)(mm)113
Db(min.)(mm)130
Sa(min.)(mm)5
Sb(min.)(mm)11
ra(max.)(mm)2.5
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 2.44
JTEKT

2025/06/01