Turning is a widely used processing method in mechanical manufacturing. The wide range of processed parts, such as shafts, bevel gears, driven pulleys... has led to an increasing variety of steering chuck types. The chuck used for quick-change chucks is connected with the metal frame and rubber. It features high rigidity of the metal frame and high elasticity of the rubber, and has the characteristics of large expansion, high clamping accuracy, large clamping force, and long service life. It is suitable for rough and fine processing of various shaft parts.