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Bearing terminology

To better understand frequently used plain bearing and rod end specific terms, definitions for spherical plain bearings are provided in fig. 1 and for rod ends in fig. 2.
fig. 1
fig. 2

Spherical plain bearing

1    Outer ring
2    Sliding contact surfaces
3    Seal
4    Inner ring
5    Lubrication hole
6    Lubrication groove

Rod end

1     Spherical plain bearing
2     Rod end
2a   Rod end housing
2b   Rod end shank, with an external (male) thread.
       Shanks are also available with an internal (female) thread
       or with a welding shank.
3     Grease fitting
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