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


Bearing No. M240648D/611/611D

Specification data (main dimensions, etc.)

d(mm)198.438
D(mm)284.163
T(mm)225.425
W(mm)225.425
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)1870
Basic load ratings : C0r(kN)3780
Fatigue load limit : Cu(kN)426
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)215 mm
Da(max.)(mm)271 mm
Da(max.)(mm)260 mm
S(min.)(mm)5 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)1.6 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)44.7 kg
JTEKT

2026/07/07