HTD pulleys have a different design from the traditional toothed pulleys. The axial grooves are designed to allow the beltteeth to catch the pulley teeth with negligible triction. HTD Pulleys are available with full hub and for assembly with SER-SIT taper bushing.
The CLASSICA® synchronous belt, being designed with imperial pitch, is a valid and economical altenative solution in low/medium torque transmission systems.
Reduced elongation, no need of lubrication and low wearing makes this belt an economic and reliable option.