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


Bearing No. 25590/26

Specification data (main dimensions, etc.)

d(mm)45.618
D(mm)85.000
T(mm)23.812
B(mm)25.400
C(mm)19.050
r(min.)(mm)3.6
r1(min.)(mm)2.4
Basic load ratings : Cr(kN)96.8
Basic load ratings : C0r(kN)100
Fatigue load limit : Cu(kN)15.1
Limiting speeds(Grease lub.)(min-1)4800
Limiting speeds(Oil lub.)(min-1)6300
Load center spread : a(mm)17.5
Constant :e0.33
Axial load factors : Y11.79
Axial load factors : Y00.99

Mounting dimensions,weight (reference)

da(mm)58.0 mm
db(mm)51.0 mm
Da(mm)74.0 mm
Db(mm)78.0 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)2.4 mm
Mass(Refer.)(kg)0.585 kg
JTEKT

2026/07/18