Grooves 6, Thread size M16-1.50, Outer Diameter 56.00, Belt type Multi Belt, Depth 10.50, Free run w/, Width 1 41.60, Groove Measurement 1 14.50, Rear Distance 0.50, Bore dia. 17.00, 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