A fluid drives are reliable form of speed control for many devices. They can run for years without service. But there are parts that do wear out over extended run-time, and there are internal fluid drive parts that can fail if there is a lose of lube oil. It is highly recommended that fluid drives have spare parts on-hand should an unforeseen event cause a problem.
TRI Transmission and Bearing Corp. manufactures fluid drives and components for Gyrol-style fluid drives. These parts are available from purchase. Please call (610) 363-8570 or use the TRI Transmission and Bearing contact page to request price and delivery.