Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30324JR

Specifications
(Boundary dimensions ...etc)

d(mm)120
D(mm)260
T(mm)59.5
B(mm)55
C(mm)46
r(min.)(mm)4
r1(min.)(mm)3
Basic load ratings : Cr(kN)712
Basic load ratings : C0r(kN)714
Fatigue load limit : Cu(kN)89.9
Limiting speeds(Grease lub.)(min-1)1500
Limiting speeds(Oil lub.)(min-1)2000
Load center spread : a(mm)50.2
Constant e()0.35
Axial load factors : Y1()1.74
Axial load factors : Y0()0.96

Mounting dimensions

da(min.)(mm)138
db(max.)(mm)152
Da(max.)(mm)246
Da(min.)(mm)221
Db(min.)(mm)239
Sa(min.)(mm)10
Sb(min.)(mm)13.5
ra(max.)(mm)3
rb(max.)(mm)2.5

Refer.

(Refer.)Mass(kg) 14.5
JTEKT

2025/06/01