Double Speed Belt Shaft Lock

Refers to the use of parts of the materials should have the material properties, including mechanical properties, physical properties and chemical properties. Mechanical property characterization parameters are strength limit sigma B, elastic limit sigma e, yield strength of sigma S or sigma 0.2, elongation and contraction section rate psi, impact toughness AK and hardness of HRC or HBS and, for the most part, the mechanical properties is the main will be able to index. The strength of these parameters is the main performance index of the mechanical performance, only in the strength to meet the requirements of the case, to ensure the normal work of the parts, and durable. In the study of material mechanics, it has been found that the use of allowable stress, which is used in the design and calculation of the dangerous section of the part of the design and safety, should be based on the material strength data.