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

Bearing No. M238849D/810/810D

Specifications
(Boundary dimensions ...etc)

d(mm)187.325
D(mm)269.875
T(mm)211.138
W(mm)211.138
r(min.)(mm)3.2
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)1510
Basic load ratings : C0r(kN)3220
Fatigue load limit : Cu(kN)367
Axial load factors : Y2(mm)2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Mounting dimensions

da(min.)(mm)206
Da(max.)(mm)257
Da(max.)(mm)245
S(min.)(mm)5
ra(max.)(mm)3.2
rb(max.)(mm)1.6
Axial load factors : Y2(mm)2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98
Constant e()0.33

Refer.

(Refer.)Mass(kg) 39.5
JTEKT

2025/06/01