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


Bearing No. 15590/20

Specification data (main 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 :e0.35
Axial load factors : Y11.73
Axial load factors : Y00.95

Mounting dimensions,weight (reference)

da(mm)39.0 mm
db(mm)33.5 mm
Da(mm)51.0 mm
Db(mm)53.0 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)1.6 mm
Mass(Refer.)(kg)0.2 kg
JTEKT

2026/07/02