Continental® Blackhawk® HTD 8M, 14M Nearly every conceivable industrial drive application where precise shaft synchronization is required. Blackhawk Pd® belts can also be used as an alternative to problem V-belt and chain drives.Unlike chain drives, Blackhawk Pd® sprockets and matching belts do not require lubrication. There is virtually no need for retensioning like there is for V-belt and chain drives. Install Blackhawk Pd® and watch your maintenance costs drop to practically nothing. Check out our pulley section and Contact Us if you have any questions. See QD required bushing for sprocket sold seprately if applicable.