Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 48290D/20/20D

Specifications
(Boundary dimensions ...etc)

d(mm)127.000
D(mm)182.563
T(mm)158.750
W(mm)158.750
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)835
Basic load ratings : C0r(kN)1720
Fatigue load limit : Cu(kN)239
Axial load factors : Y2(mm)2.21
Axial load factors : Y3()3.29
Axial load factors : Y0()2.16
Constant e()0.31

Mounting dimensions

da(min.)(mm)140
Da(max.)(mm)171
Da(max.)(mm)166
S(min.)(mm)3.7
ra(max.)(mm)3.2
rb(max.)(mm)1.6
Axial load factors : Y2(mm)2.21
Axial load factors : Y3()3.29
Axial load factors : Y0()2.16
Constant e()0.31

Refer.

(Refer.)Mass(kg) 13.6
JTEKT

2025/06/12