Support roller(Yoke type track rollers)are single- or double-row bearing units mounted on a shaft or bolt. They consist of thick outer rings with a specific outer surface shape and
needle roller-retainer assembly or full complement needle roller or full
complement cylindrical roller assemblies. The outer ring has a crowned trimmed
or cylindrical surface.
The RSTO series are detachable. The outer ring, needle roller and cage assemblies,
and inner ring can be installed independently.