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


Bearing No. EE724121D/195/196D

Specification data (main dimensions, etc.)

d(mm)304.800
D(mm)495.300
T(mm)349.250
W(mm)342.900
r(min.)(mm)6.4
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)4700
Basic load ratings : C0r(kN)9370
Fatigue load limit : Cu(kN)922
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)355 mm
Da(max.)(mm)474 mm
Da(max.)(mm)438 mm
S(min.)(mm)7 mm
ra(max.)(mm)6.4 mm
rb(max.)(mm)3.2 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)267 kg
JTEKT

2026/07/23