Koyo
FOR REFERENCE ONLY
  • Thrust ball bearings
  • Single direction
  • With flat back faces
>

Bearing No. 51144

Specifications
(Boundary dimensions ...etc)

d(mm)220
D(mm)270
T(mm)37
r(min.)(mm)1.1
Basic load ratings Ca(kN)221
Basic load ratings C0a(kN)740
Fatigue load limit : Cu(kN)21.3
Limiting speeds(Grease lub.)(min-1)880
Limiting speeds(Oil lub.)(min-1)1350
d1(max.)(mm)267
D1(min.)(mm)223
D2(mm)-
D3(mm)-
A(mm)-
R(mm)-
C(mm)-

Mounting dimensions

da(min.)(mm)250
Da(max.)(mm)240
ra(max.)(mm)1

Refer.

(Refer.)Mass(kg) 4.50
JTEKT

2025/06/19