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


Bearing No. 47T493319

Specification data (main dimensions, etc.)

d(mm)244.475
D(mm)327.025
T(mm)193.675
W(mm)193.675
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)1580
Basic load ratings : C0r(kN)3500
Fatigue load limit : Cu(kN)414
Axial load factors : Y2(mm)1.24
Axial load factors : Y31.84
Axial load factors : Y01.21
Constant e0.55

Mounting dimensions,weight (reference)

da(min.)(mm)259 mm
Da(max.)(mm)313 mm
Da(max.)(mm)303 mm
S(min.)(mm)5.5 mm
ra(max.)(mm)3.2 mm
rb(max.)(mm)1.6 mm
Axial load factors : Y2(mm)1.24 mm
Axial load factors : Y31.84
Axial load factors : Y01.21
Constant e0.55
Mass(Refer.)(kg)44.4 kg
JTEKT

2026/07/21