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


Bearing No. 4TR540A

Specification data (main dimensions, etc.)

d(mm)540
D(mm)760
T(mm)560
W(mm)560
r(min.)(mm)5
r1(min.)(mm)6
Basic load ratings : Cr(kN)12200
Basic load ratings : C0r(kN)30600
Fatigue load limit : Cu(kN)2500
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)587 mm
Da(max.)(mm)738 mm
Da(max.)(mm)704 mm
S(min.)(mm)10.5 mm
ra(max.)(mm)4 mm
rb(max.)(mm)6 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)808 kg
JTEKT

2026/07/23