Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 2789R/35X

Specifications
(Boundary dimensions ...etc)

d(mm)39.688
D(mm)73.025
T(mm)23.812
B(mm)25.654
C(mm)19.050
r(min.)(mm)3.6
r1(min.)(mm)0.8
Basic load ratings : Cr(kN)92.6
Basic load ratings : C0r(kN)92.2
Fatigue load limit : Cu(kN)13.8
Limiting speeds(Grease lub.)(min-1)5400
Limiting speeds(Oil lub.)(min-1)7200
Load center spread : a(mm)15.9
Constant :e()0.30
Axial load factors : Y1()1.98
Axial load factors : Y0()1.09

Mounting dimensions

da(mm)52.0
db(mm)45.0
Da(mm)66.0
Db(mm)69.0
ra(max.)(mm)3.6
rb(max.)(mm)0.8

Refer.

(Refer.)Mass(kg) 0.422
JTEKT

2025/06/01