Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 15590/20

Specifications
(Boundary dimensions ...etc)

d(mm)28.575
D(mm)57.150
T(mm)17.462
B(mm)17.462
C(mm)13.495
r(min.)(mm)3.6
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)47.2
Basic load ratings : C0r(kN)42.7
Fatigue load limit : Cu(kN)6.10
Limiting speeds(Grease lub.)(min-1)7000
Limiting speeds(Oil lub.)(min-1)9400
Load center spread : a(mm)12.7
Constant :e()0.35
Axial load factors : Y1()1.73
Axial load factors : Y0()0.95

Mounting dimensions

da(mm)39.0
db(mm)33.5
Da(mm)51.0
Db(mm)53.0
ra(max.)(mm)3.6
rb(max.)(mm)1.6

Refer.

(Refer.)Mass(kg) 0.2
JTEKT

2025/05/15