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


Bearing No. 67782D/20/21D

Specification data (main dimensions, etc.)

d(mm)168.275
D(mm)247.650
T(mm)192.088
W(mm)192.088
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)1270
Basic load ratings : C0r(kN)2800
Fatigue load limit : Cu(kN)319
Axial load factors : Y2(mm)1.54
Axial load factors : Y32.29
Axial load factors : Y01.50
Constant e0.44

Mounting dimensions,weight (reference)

da(min.)(mm)189 mm
Da(max.)(mm)236 mm
Da(max.)(mm)226 mm
S(min.)(mm)5 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)1.54 mm
Axial load factors : Y32.29
Axial load factors : Y01.50
Constant e0.44
Mass(Refer.)(kg)31.7 kg
JTEKT

2026/07/19