Roller Assembly T601 Upper 60 mm Concentric OLS# 601013 October 3, 2022 / Roller Assembly T601 Upper 60 mm Concentric OLS# 601013 Product Details Additional Information Roller Diameter: 60 mm (2.36") Pin Type: concentric Car Frame Model: T601 – Upper Roller (anodized finish) Original Date of Supply: April 2009 – November 2014