Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings


Bearing No. 48290D/20/20D

Specification data (main 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 : Y33.29
Axial load factors : Y02.16
Constant e0.31

Mounting dimensions,weight (reference)

da(min.)(mm)140 mm
Da(max.)(mm)171 mm
Da(max.)(mm)166 mm
S(min.)(mm)3.7 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)2.21 mm
Axial load factors : Y33.29
Axial load factors : Y02.16
Constant e0.31
Mass(Refer.)(kg)13.6 kg
JTEKT

2026/07/19