When it comes to energy-efficient power transmission for HVAC systems, nothing compares to Gates synchronous belts. Our complete line of OE-quality synchronous belts is designed with a variety of tooth grip profiles to fit your HVAC application, helping to prevent slips, reduce the need for re-tensioning, retain energy efficiency over belt life, and more. No oil. No stretch. Virtually maintenance-free. Gates HVAC synchronous belts help keep your heating, ventilation and cooling systems running as they should.