SKF support rollers have an internal design very similar to that of a needle or cylindrical roller bearing. They are characterized by a thick-walled outer ring that enables them to accommodate shock loads while reducing distortion and bending stresses. The outer ring running surface is crowned as standard. However, support rollers with a cylindrical (flat) running surface are available for certain applications. These pre-greased, ready-to-mount units are suitable for all types of cam drives, tracks and conveyor systems.