The Daikin Key, Crank Shaft, is a vital component used in Daikin compressors. It securely fits into the keyway of the crankshaft, ensuring proper alignment and efficient torque transmission between the crankshaft and other system components. Made from durable materials, the crankshaft key prevents slippage, minimizing the risk of misalignment and ensuring smooth operation. It plays a crucial role in maintaining the overall performance, reliability, and longevity of the compressor by keeping critical parts securely in place.