Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30264

Specifications
(Boundary dimensions ...etc)

d(mm)320
D(mm)580
T(mm)104
B(mm)92
C(mm)75
r(min.)(mm)6
r1(min.)(mm)5
Basic load ratings : Cr(kN)2190
Basic load ratings : C0r(kN)2770
Fatigue load limit : Cu(kN)273
Limiting speeds(Grease lub.)(min-1)490
Limiting speeds(Oil lub.)(min-1)660
Load center spread : a(mm)111.9
Constant e()0.42
Axial load factors : Y1()1.44
Axial load factors : Y0()0.79

Mounting dimensions

da(min.)(mm)348
db(max.)(mm)370
Da(max.)(mm)558
Da(min.)(mm)505
Db(min.)(mm)540
Sa(min.)(mm)14
Sb(min.)(mm)28
ra(max.)(mm)5
rb(max.)(mm)4

Refer.

(Refer.)Mass(kg) 108
JTEKT

2025/06/13