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


Bearing No. M270449D/10/10D

Specification data (main dimensions, etc.)

d(mm)449.949
D(mm)594.949
T(mm)368.000
W(mm)368.000
r(min.)(mm)5
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)6400
Basic load ratings : C0r(kN)16200
Fatigue load limit : Cu(kN)1470
Axial load factors : Y2(mm)2.03
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33

Mounting dimensions,weight (reference)

da(min.)(mm)478 mm
Da(max.)(mm)573 mm
Da(max.)(mm)557 mm
S(min.)(mm)9 mm
ra(max.)(mm)5 mm
rb(max.)(mm)2 mm
Axial load factors : Y2(mm)2.03 mm
Axial load factors : Y33.02
Axial load factors : Y01.98
Constant e0.33
Mass(Refer.)(kg)278 kg
JTEKT

2026/07/18