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


Bearing No. 4TR800

Specification data (main dimensions, etc.)

d(mm)800
D(mm)1120
T(mm)820
W(mm)820
r(min.)(mm)7.5
r1(min.)(mm)6
Basic load ratings : Cr(kN)25800
Basic load ratings : C0r(kN)70200
Fatigue load limit : Cu(kN)4970
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)869 mm
Da(max.)(mm)1084 mm
Da(max.)(mm)1038 mm
S(min.)(mm)13.5 mm
ra(max.)(mm)6 mm
rb(max.)(mm)5 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)2590 kg
JTEKT

2026/07/19