One New Aftermarket Manufacturer Part 1533M25PACKAGED UOM 1EACHTECHNICAL SPECIFICATIONS Brand DD Powerdrive, WidthThick 25mm, Length 153mm, No Of Teeth 51, Material Neoprene, Series 3M, Pitch 3mmFEATURES BENE FitsAlso called HTD for High Torque Design these belts have metic pitches in millimeters size 3M, 5M, 8M, 14M and 20MRound curvilinear tooth profile increases the distribution of tension on the timing belt allowing significantly higher horesepower ratingsBecause of their round teeth HTD timing belts mesh accurately with their associated pulley grooves to eliminate belt slippage and speed variationsHTD belt drives are 99 efficient compared to standard sychronous belt drivesliliMeets all RMA standards for oil resistance, heat resistance and static conductivityliliHTD timing belts eliminate the need for maintenance like relubrica