CHAIN SHEAVE NUMBER 40 ON DIAGRAMUSED FROM 0994 - 0296WIDTH OUTER RING B1 (mm)36MAX INNER RING D2 (mm) 40WIDTH INNE RING B2 (mm) 23OUTER DIAMETER D3 (mm) 84WIDTH OF THREAD B3 (mm) 25.3MAX OUTER RING (mm) 100REF NUMBER LS1751