Cam followers have an internal design very similar to that of a needleor cylindrical roller bearing. They are characterized by a thick walledouter ring that enables them to accommodate shock loads while reducingdistortion and bending stresses. The outside running surface is crownedas standard. However, cam followers with cylindrical (flat) runningsurfaces are available for certain applications. Instead of an innerring, cam followers have a solid stud (pin) that is threaded so that thecam follower can be quickly and easily attached to appropriate machinecomponents by means of a hexagonal nut.
Axial guidance for the outer ring is provided by an integral flange atthe head of the stud and a flange ring pressed onto the stud, or by theroller complement. Cam followers are pre-greased ready-to-mount unitsthat are suitable for all types of cam drives, tracks and conveyorsystems.