Page 394 - SKF-bearing-housings

Split pillow blocks SAF and SAW series

Standard seals for SAF and SAW housings

Seal
Type Labyrinth PosiTrac PosiTrac Plus

Designation LER LOR LOR and B-10724
Material aluminum aluminum and aluminum and
nitrile rubber nitrile rubber

Application conditions and requirements
Temperature [°F] –30 to 300 –30 to 220 –30 to 220
Max. circumferential speed same as bearing same as bearing limited
Misalignment [°] 0.3 0.3 0.3
Low friction ++ ++ +
Axial shaft displacement ++ + –
Vertical arrangement – – ++
Grease relubrication + + +
Oil lubrication – – ++
Replacement – – –
Sealing suitability
Dust – – +
Fine particles – – +
Coarse particles + + +
Chips + + –
Liquids when sprayed – – – – –
Direct sunlight + + +

Symbols: n/a not applicable, ++ very suitable, + suitable, – limited suitability, – – unsuitable

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