Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 27689/20

Specifications
(Boundary dimensions ...etc)

d(mm)83.345
D(mm)125.412
T(mm)25.400
B(mm)25.400
C(mm)19.845
r(min.)(mm)0.8
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)126
Basic load ratings : C0r(kN)162
Fatigue load limit : Cu(kN)24.4
Limiting speeds(Grease lub.)(min-1)2900
Limiting speeds(Oil lub.)(min-1)3800
Load center spread : a(mm)24.7
Constant :e()0.42
Axial load factors : Y1()1.44
Axial load factors : Y0()0.79

Mounting dimensions

da(mm)90.0
db(mm)90.0
Da(mm)115.0
Db(mm)120.0
ra(max.)(mm)0.8
rb(max.)(mm)1.6

Refer.

(Refer.)Mass(kg) 1.09
JTEKT

2025/06/01