时间：2013-11-20 08:58　作者：admin　点击： 次

There are many types of couplings, which are connected to various mechanical equipment, and the torque transmitted can be large or small. The material of the coupling is 45#, 40CrM0, stainless steel, cast steel, cast iron, aluminum alloy, etc.
45# steel is the name in GB. It is a high-quality carbon structural steel. It is widely used in machinery. It has high strength, good plasticity and toughness. After quenching, it has a hardness greater than HRC45 before tempering. HRC55) is qualified. After heat treatment and quenching, it can reach HRC62-42, which not only guarantees its good mechanical properties, but also obtains the surface hardness requirements. It is used to make small cross-section quality parts with larger load and smaller stress Large normalized parts and surface hardened parts that do not require high core strength.
The material of the elastic element in the middle of the coupling includes nylon, PP, polyurethane and so on.
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