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


Bearing No. 76589D/20/20D

Specification data (main dimensions, etc.)

d(mm)266.700
D(mm)355.600
T(mm)228.600
W(mm)230.188
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)2130
Basic load ratings : C0r(kN)4830
Fatigue load limit : Cu(kN)507
Axial load factors : Y2(mm)1.83
Axial load factors : Y32.73
Axial load factors : Y01.79
Constant e0.37

Mounting dimensions,weight (reference)

da(min.)(mm)285 mm
Da(max.)(mm)342 mm
Da(max.)(mm)331 mm
S(min.)(mm)7 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)1.83 mm
Axial load factors : Y32.73
Axial load factors : Y01.79
Constant e0.37
Mass(Refer.)(kg)59.8 kg
JTEKT

2026/07/19