Suffixes L - N

LMachined light alloy cage; different designs or materials are identified by a figure, e.g. L1
LAMachined light alloy cage, outer ring centred
LBMachined light alloy cage, inner ring centred
LHTGrease 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:
  • LHT23, LHT23C or LHT23F7
LOBearing without preservative, but coated with low viscosity oil; the actual oil is identified by figures following the LO, e.g. LO10
LPLight alloy window-type cage, with punched or reamed pockets, inner or outer ring centred
LPSAs LP but with lubrication grooves in the guiding surfaces
LSContact seal of acrylonitrile-butadiene rubber (NBR) or polyurethane (AU) with or without sheet steel reinforcement, on one side of the bearing
2LSLS contact seal on both sides of the bearing
LTGrease 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:
  • LT, LT10 or LTF1
L4BBearing rings and rolling elements with special surface coating
L5BRolling elements with special surface coating
L5DANoWear bearing with coated rolling elements
L7DANoWear bearing with coated rolling elements and inner ring raceway(s)
MMachined brass cage, rolling element centred; different designs or material grades are identified by a figure or a letter , e.g. M2, MC
MAMachined brass cage, outer ring centred
MASAs MA but with lubrication grooves in the guiding surfaces
MBMachined brass cage, inner ring centred
MBSAs MB but with lubrication grooves in the guiding surfaces
MLMachined one-piece window-type brass cage, inner or outer ring centred
MOBearing without preservative, but coated with medium viscosity oil; the actual oil is identified by figures following the MO, e.g. MO10
MPMachined one-piece window-type brass cage, with punched or reamed pockets, inner or outer ring centred
MPSAs MP but with lubrication grooves in the guiding surfaces
MRMachined one-piece window-type brass cage, rolling element centred
MTGrease 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:
  • MT33 or MT37F9
NSnap ring groove in the outer ring
NRSnap ring groove in the outer ring with appropriate snap ring
N1One locating slot (notch) in one outer ring side face or housing washer
N2Two locating slots (notches) 180° apart in one outer ring side face or housing washer
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