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

Bearing No. 51111

Specifications
(Boundary dimensions ...etc)

d(mm)55
D(mm)78
T(mm)16
r(min.)(mm)0.6
Basic load ratings Ca(kN)43.5
Basic load ratings C0a(kN)93.1
Fatigue load limit : Cu(kN)4.20
Limiting speeds(Grease lub.)(min-1)2800
Limiting speeds(Oil lub.)(min-1)4300
d1(max.)(mm)78
D1(min.)(mm)57
D2(mm)-
D3(mm)-
A(mm)-
R(mm)-
C(mm)-

Mounting dimensions

da(min.)(mm)69
Da(max.)(mm)64
ra(max.)(mm)0.6

Refer.

(Refer.)Mass(kg) 0.240
JTEKT

2025/06/16