Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
>

Bearing No. 30260

Specifications
(Boundary dimensions ...etc)

d(mm)300
D(mm)540
T(mm)96
B(mm)85
C(mm)71
r(min.)(mm)6
r1(min.)(mm)5
Basic load ratings : Cr(kN)1890
Basic load ratings : C0r(kN)2360
Fatigue load limit : Cu(kN)240
Limiting speeds(Grease lub.)(min-1)550
Limiting speeds(Oil lub.)(min-1)730
Load center spread : a(mm)103.9
Constant e()0.42
Axial load factors : Y1()1.44
Axial load factors : Y0()0.79

Mounting dimensions

da(min.)(mm)328
db(max.)(mm)350
Da(max.)(mm)518
Da(min.)(mm)475
Db(min.)(mm)505
Sa(min.)(mm)14
Sb(min.)(mm)24
ra(max.)(mm)5
rb(max.)(mm)4

Refer.

(Refer.)Mass(kg) 84.7
JTEKT

2025/05/25