Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 25590/26

Specifications
(Boundary 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 :e()0.33
Axial load factors : Y1()1.79
Axial load factors : Y0()0.99

Mounting dimensions

da(mm)58.0
db(mm)51.0
Da(mm)74.0
Db(mm)78.0
ra(max.)(mm)3.6
rb(max.)(mm)2.4

Refer.

(Refer.)Mass(kg) 0.585
JTEKT

2025/06/01