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

Bearing No. 4TR508

Specifications
(Boundary dimensions ...etc)

d(mm)508.000
D(mm)716.000
T(mm)528.000
W(mm)528.000
r(min.)(mm)8
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)10900
Basic load ratings : C0r(kN)26300
Fatigue load limit : Cu(kN)2200
Axial load factors : Y2(mm)1.95
Axial load factors : Y3()2.90
Axial load factors : Y0()1.91
Constant e()0.35

Mounting dimensions

da(min.)(mm)549
Da(max.)(mm)689
Da(max.)(mm)664
S(min.)(mm)9.5
ra(max.)(mm)8
rb(max.)(mm)3.2
Axial load factors : Y2(mm)1.95
Axial load factors : Y3()2.90
Axial load factors : Y0()1.91
Constant e()0.35

Refer.

(Refer.)Mass(kg) 679
JTEKT

2025/06/01