Table 4
Designation system for SKF ConCentra ball bearing units
Examples SY 25 LF
FY 1.15/16 LF/AH
FYTB 60 LF
FYT 1. LF/AH
Identification of housing shape
SY Plummer block cast iron housing
FY Square flange (4-bolt) cast iron housing
FYTB Oval flanged (2-bolt) metric cast iron housings
FYT Oval flanged (2-bolt) inch cast iron housings
Identification of size
Bearing units for metric shafts: in millimetres uncoded
25 20 mm bore diameter
to
60 60 mm bore diameter
Bearing units for inch shafts: in inches uncoded
1 1 in = 25,4 mm bore diameter
to
2.11/16 2
11
/16 in = 68,26 mm bore diameter
Identification of inserted Y-bearing
LF SKF ConCentra ball bearings with integral contact seal
and plain sheet flingers
Other features
AH Anti-rotation pin, and loose alignment torque
SY 30 LF
FY 1.15/16 LF /AH
FYTB 60 LF
FYT 1. LF /AH
C
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