Seals for inch roller bearing units
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| Seal | |||||
| Type | triple-lip
(TriGard) |
labyrinth | radial shaft seal1) | end plug | |
| Material | nitrile rubber,
steel |
metal | nitrile rubber | da< 3 in.:plastic
da≥ 3 in.:steel |
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| Application conditions and requirements | |||||
| Temperature [°F] | –5 to 2302) | –5 to 2302) | –5 to 2302) | da< 3 in.:–5 to 2302) da≥ 3 in.:–5 to 2302) |
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Max. circumferential speed3) [m/s] |
13 | not limited | 6 | n/a | |
| Max. misalignment [°] | 1,5 | 1,5 | 1,5 | n/a | |
| Low friction | + | ++ | – | n/a | |
| Axial shaft displacement | ++ | – | + | n/a | |
| Vertical shaft arrangement | + | + | + | + | |
| Sealing suitability | |||||
| Dust | ++ | + | ++ | ++ | |
| Fine particles | ++ | + | ++ | ++ | |
| Coarse particles | + | + | ++ | ++ | |
| Chips | + | ++ | ++ | ++ | |
| Liquids when sprayed | + | –– | ++ | ++ | |
| Direct sunlight | + | ++ | + | ++ | |
| Symbols: n/a not applicable ++very suitable +suitable –limited suitability ––unsuitable | |||||
- 1) Option only for collar-mount units.
- 2) Imposed by the grease.
- 3) To convert circumferential speeds to rotational speeds, refer to table.
