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


Bearing No. 47T342418A

Specification data (main dimensions, etc.)

d(mm)170
D(mm)240
T(mm)175
W(mm)175
r(min.)(mm)2.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)1200
Basic load ratings : C0r(kN)2340
Fatigue load limit : Cu(kN)306
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)184 mm
Da(max.)(mm)228 mm
Da(max.)(mm)218 mm
S(min.)(mm)7.5 mm
ra(max.)(mm)2 mm
rb(max.)(mm)1.5 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)24.7 kg
JTEKT

2026/07/07