Koyo
FOR REFERENCE ONLY
  • Ball bearing units
  • Square-flanged type with spigot joint


Bearing No. UCFS311

Specification data (main dimensions, etc.)

d(mm)55
L(mm)185
H3(mm)150
J(mm)140
N(mm)23
A1(mm)20
A2(mm)17
A3(mm)13
A4(mm)39
A5(mm)58
B(mm)66
S(mm)25
Bolt sizeM20
Basic load ratings : Cr(kN)71.6
Basic load ratings : C0r(kN)45.0
Fatigue load limit : Cu(kN)2.05
factor : f013.2
Nipple sizeR1/8

JTEKT

2026/07/07