Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 48680D/20/20D

Specifications
(Boundary dimensions ...etc)

d(mm)139.700
D(mm)200.025
T(mm)160.340
W(mm)157.166
r(min.)(mm)3.3
r1(min.)(mm)0.8
Basic load ratings : Cr(kN)903
Basic load ratings : C0r(kN)1960
Fatigue load limit : Cu(kN)266
Axial load factors : Y2(mm)2.01
Axial load factors : Y3()2.99
Axial load factors : Y0()1.96
Constant e()0.34

Mounting dimensions

da(min.)(mm)157
Da(max.)(mm)187
Da(max.)(mm)182
S(min.)(mm)4
ra(max.)(mm)3.3
rb(max.)(mm)0.8
Axial load factors : Y2(mm)2.01
Axial load factors : Y3()2.99
Axial load factors : Y0()1.96
Constant e()0.34

Refer.

(Refer.)Mass(kg) 16.6
JTEKT

2025/06/01