Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30314JR

Specifications
(Boundary dimensions ...etc)

d(mm)70
D(mm)150
T(mm)38
B(mm)35
C(mm)30
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)288
Basic load ratings : C0r(kN)273
Fatigue load limit : Cu(kN)42.2
Limiting speeds(Grease lub.)(min-1)2600
Limiting speeds(Oil lub.)(min-1)3500
Load center spread : a(mm)30.5
Constant e()0.35
Axial load factors : Y1()1.74
Axial load factors : Y0()0.96

Mounting dimensions

da(min.)(mm)84
db(max.)(mm)89
Da(max.)(mm)138
Da(min.)(mm)130
Db(min.)(mm)140
Sa(min.)(mm)4
Sb(min.)(mm)8
ra(max.)(mm)2.5
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 3.08
JTEKT

2025/06/11