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


Bearing No. 4TR540

Specification data (main dimensions, etc.)

d(mm)540
D(mm)690
T(mm)400
W(mm)400
r(min.)(mm)5
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)7220
Basic load ratings : C0r(kN)19800
Fatigue load limit : Cu(kN)1700
Axial load factors : Y2(mm)1.68
Axial load factors : Y32.50
Axial load factors : Y01.64
Constant e0.40

Mounting dimensions,weight (reference)

da(min.)(mm)566 mm
Da(max.)(mm)668 mm
Da(max.)(mm)648 mm
S(min.)(mm)10.5 mm
ra(max.)(mm)4 mm
rb(max.)(mm)2 mm
Axial load factors : Y2(mm)1.68 mm
Axial load factors : Y32.50
Axial load factors : Y01.64
Constant e0.40
Mass(Refer.)(kg)369 kg
JTEKT

2026/07/19