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


Bearing No. 47T745026

Specification data (main dimensions, etc.)

d(mm)374.650
D(mm)501.650
T(mm)260.350
W(mm)260.350
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)3150
Basic load ratings : C0r(kN)7750
Fatigue load limit : Cu(kN)737
Axial load factors : Y2(mm)1.56
Axial load factors : Y32.32
Axial load factors : Y01.52
Constant e0.43

Mounting dimensions,weight (reference)

da(min.)(mm)399 mm
Da(max.)(mm)486 mm
Da(max.)(mm)459 mm
S(min.)(mm)7 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)1.56 mm
Axial load factors : Y32.32
Axial load factors : Y01.52
Constant e0.43
Mass(Refer.)(kg)145 kg
JTEKT

2026/07/19