tworings (steel) featuring raceways (surface on which the rolling bodies "roll")
the inner ring
the outer ring
rolling bodies (usually made of steel) allow the two rings to move with minimum friction
a cage to separate and guide the rolling bodies (made of polyamide, steel sheet, bronze or resin)
lubrication (grease or oil) to reduce friction. This ensures optimum operation and maximum bearing service life.
protection (steel baffle or seal) creating a seal such that the active parts of the bearing (rolling bodies, raceways and cage) always remain impeccably clean and well lubricated.
Thehousing is the area into which the outer bearing ring is inserted. Theshaft is the part inserted into the inner ring.. Thepitch circle diameter is the fictitious diameter passing through the centre of the rolling body.