Berges® Control Pulley type R450b for use with wide belts type CW-b 83 and spring tensioning pulley F450b. Diameter of 470mm with length trough the bore 280mm. Die-cast aluminum pulley faces with steel slide hub with thrust bearing on one side. Casting numbers ; castings maybe used on other series of pulleys. Maximum shaft diameter 70mm with standard bores listed for sale, alternative bores are available contact TVT for non-standard bore quotation.