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


Bearing No. M383240D/210/210D

Specification data (main dimensions, etc.)

d(mm)714.375
D(mm)1016
T(mm)704.850
W(mm)704.850
r(min.)(mm)6.4
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)20900
Basic load ratings : C0r(kN)52200
Fatigue load limit : Cu(kN)3880
Axial load factors : Y2(mm)1.92
Axial load factors : Y32.86
Axial load factors : Y01.88
Constant e0.35

Mounting dimensions,weight (reference)

da(min.)(mm)776 mm
Da(max.)(mm)992 mm
Da(max.)(mm)940 mm
S(min.)(mm)14.5 mm
ra(max.)(mm)6.4 mm
rb(max.)(mm)3.2 mm
Axial load factors : Y2(mm)1.92 mm
Axial load factors : Y32.86
Axial load factors : Y01.88
Constant e0.35
Mass(Refer.)(kg)1900 kg
JTEKT

2026/07/18