Koyo
FOR REFERENCE ONLY
  • Rolling mill roll neck bearings
  • Four-row tapered roller bearings
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Bearing No. 4TR580

Specifications
(Boundary dimensions ...etc)

d(mm)580
D(mm)770
T(mm)510
W(mm)510
r(min.)(mm)4
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)11000
Basic load ratings : C0r(kN)29600
Fatigue load limit : Cu(kN)2410
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)618
Da(max.)(mm)752
Da(max.)(mm)723
S(min.)(mm)12
ra(max.)(mm)3
rb(max.)(mm)1.5
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) 671
JTEKT

2025/06/01