Groove Measurement 1 14.50, Rear Distance 0.50, Free run w/, Width 1 41.60, Bore dia. 17.00, Grooves 6, Depth 10.50, Belt type Multi Belt, Thread size M16-1.50, Outer Diameter 56.00, Remarks Attention: Always change OADTM pulleys with the same OADTM technology – To prevent damages and loss of warranty in case of failures., Pulley type OAD