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


Bearing No. 47T342318

Specification data (main dimensions, etc.)

d(mm)170
D(mm)230
T(mm)175
W(mm)175
r(min.)(mm)2
r1(min.)(mm)1
Basic load ratings : Cr(kN)1100
Basic load ratings : C0r(kN)2370
Fatigue load limit : Cu(kN)308
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)183 mm
Da(max.)(mm)220 mm
Da(max.)(mm)210 mm
S(min.)(mm)6 mm
ra(max.)(mm)2 mm
rb(max.)(mm)1 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)19.9 kg
JTEKT

2026/07/19