Selection of Hole and Axle Interference Fit Tolerance

In production practice，the preferred methods of determining interference fit of hole and axle are mainly empirical methods such as analogy ，which exist a wide range of errors. This paper discusses in detail the selection standard of common interference fit by stress analysis of hole and axle interference fit，puts forward the concept of allowable shearing stress of interference fit which refers to allowable shearing stress in machine design，and determines the preferred method of exact interference fit.