The Grasso Key is a vital mechanical component used in Grasso compressors and refrigeration systems. Made from durable materials such as steel, it fits into keyways to securely lock components like pulleys, gears, or shafts in place. This key ensures proper alignment and efficient transmission of torque, preventing slippage and maintaining the system’s operational reliability. It is essential for ensuring smooth functioning and extending the lifespan of the equipment by keeping critical parts securely connected.