Mirror treatment on the outer ring,with and without shaft both available. One of the circular guide rail accessories, used to support sliding blocks, usually consisting of 4 bearings, which can be used together with an eccentric shaft to ensure balance at bends. Double-sealed rollers are better protected from high-pressure liquid and debris than single-sealed rollers, and also operate within a broader temperature range. Overview HT PN: 09343 Main Demensions: 12x33x36.8 mm ID: 12 mm OD: 33 mm T(B): 36.8 mm Weight: 0.083KG