... , φ178mm, φ194mm, φ219mm. They almost cover all belt width requirement. The correct idler length could be selected according to ... ,305133305350375380455465525530600700790800950115014001600305,30615937538045546552553060064067070075079080090095010501120115014001600306308193.760064075080090095010501120308194530,600,640,750,800,900,950,1050,112030821960064010501120308310 Buffering Roller