Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 4TR800

Specifications
(Boundary 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 : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Mounting dimensions

da(min.)(mm)869
Da(max.)(mm)1084
Da(max.)(mm)1038
S(min.)(mm)13.5
ra(max.)(mm)6
rb(max.)(mm)5
Axial load factors : Y2(mm)2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Refer.

(Refer.)Mass(kg) 2590
JTEKT

2025/06/01