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


Bearing No. M667947D/911/911D

Specification data (main dimensions, etc.)

d(mm)409.575
D(mm)546.100
T(mm)334.963
W(mm)334.963
r(min.)(mm)6.4
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)4890
Basic load ratings : C0r(kN)11500
Fatigue load limit : Cu(kN)1080
Axial load factors : Y2(mm)1.62
Axial load factors : Y32.42
Axial load factors : Y01.59
Constant e0.42

Mounting dimensions,weight (reference)

da(min.)(mm)432 mm
Da(max.)(mm)524 mm
Da(max.)(mm)509 mm
S(min.)(mm)8.5 mm
ra(max.)(mm)6.4 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)1.62 mm
Axial load factors : Y32.42
Axial load factors : Y01.59
Constant e0.42
Mass(Refer.)(kg)213 kg
JTEKT

2026/07/19