Statically Balanced Synchronous Pulleys are available with precision-machined grooves that protect and maximize belt life while reducing noise emissions. These Synchronous Pulleys are available in both classical timing and HTD. These Synchronous Pulleys act as an ideal primer and remove the need for cleaning and coating agents prior to installation. Statically Balanced Synchronous Pulleys are made from close grain grey iron to ensure optimum performance for longer period of time.