Industry 4.0 Approaches to the Standardization of Spur Bevel Gears

Manufacturing technologies and measuring methods of transmissions have undergone great changes, which are usually combined into the concept of Industry 4.0. At the same time, the accuracy standards of bevel gears have remained unchanged for the past ten years. When assembling bevel gearboxes, ANSI/AGMA and ISO standards recommend visual inspection of the contact pattern in the gearing.An additional operation of searching for a satisfactory contact pattern by trial and error method by the operator is also provided. An attempt has been made to regulate installation errors of spur bevel gears, in addition to existing standards, in order to create prerequisites for excluding humans from the assembly process of bevel gears. Mathematical expectation of the load distribution factor was chosen as a criterion for the assembly quality of bevel gears. The probabilistic nature of installation errors was taken into account using the Monte Carlo method. The value of load distribution factor was found depending on the tolerance range for axial displacements and offset error.