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


Bearing No. M281349D/10/10D

Specification data (main dimensions, etc.)

d(mm)649.924
D(mm)914.898
T(mm)674.000
W(mm)672.000
r(min.)(mm)6
r1(min.)(mm)3.6
Basic load ratings : Cr(kN)17100
Basic load ratings : C0r(kN)43800
Fatigue load limit : Cu(kN)3360
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)703 mm
Da(max.)(mm)891 mm
Da(max.)(mm)844 mm
S(min.)(mm)12 mm
ra(max.)(mm)6 mm
rb(max.)(mm)3.6 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)1430 kg
JTEKT

2026/07/21