Martin Bearing MaintenanceBearing Suffixes L - N
Bearing Suffixes: A - B :: C :: D - F :: G - K :: L - N :: P - S :: T - Z
| L | Machined light alloy cage; different designs or materials are identified by a figure, e.g. L1 |
| Machined light alloy cage, outer ring centered | |
| Machined light alloy cage, inner ring centered | |
| Grease fill for low and high temperatures (e.g. –40 to +140 °C). A two-figure number following LHT identifies the actual grease. An additional letter or letter/figure combination as mentioned under "HT" identifies filling degrees other than standard. Examples:
| |
| Bearing without preservative, but coated with low viscosity oil; the actual oil is identified by figures following the LO, e.g. LO10 | |
| Light alloy window-type cage, with punched or reamed pockets, inner or outer ring centered | |
| As LP but with lubrication grooves in the guiding surfaces | |
| Contact seal of Acrylonitrile-Butadiene rubber (NBR) or polyurethane (AU) with or without sheet steel reinforcement, on one side of the bearing | |
| LS contact seal on both sides of the bearing | |
| Grease fill for low temperatures (e.g. –50 to +80 °C). LT or a two-figure number following LT identifies the actual grease. An additional letter or letter/figure combination as mentioned under "HT" identifies filling degrees other than standard. Examples:
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| Bearing rings and rolling elements with special surface coating | |
| Rolling elements with special surface coating | |
| No-Wear bearing with coated rolling elements | |
| No-Wear bearing with coated rolling elements and inner ring raceway(s) | |
| Machined brass cage, rolling element centered; different designs or material grades are identified by a figure or a letter , e.g. M2, MC | |
| Machined brass cage, outer ring centered | |
| As MA but with lubrication grooves in the guiding surfaces | |
| Machined brass cage, inner ring centered | |
| As MB but with lubrication grooves in the guiding surfaces | |
| Machined one-piece window-type brass cage, inner or outer ring centered | |
| Bearing without preservative, but coated with medium viscosity oil; the actual oil is identified by figures following the MO, e.g. MO10 | |
| Machined one-piece window-type brass cage, with punched or reamed pockets, inner or outer ring centered | |
| As MP but with lubrication grooves in the guiding surfaces | |
| Machined one-piece window-type brass cage, rolling element centered | |
| Grease fill for medium temperatures (e.g. –30 to +110 °C). A two-figure number following MT identifies the actual grease. An additional letter or letter/figure combination as mentioned under "HT" identifies filling degrees other than standard. Examples:
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| N | Snap ring groove in the outer ring |
| Snap ring groove in the outer ring with appropriate snap ring | |
| One locating slot (notch) in one outer ring side face or housing washer | |
| Two locating slots (notches) 180° apart in one outer ring side face or housing washer |