What are the correct meshing conditions for gear transmission?
1 Answers
The correct meshing conditions for a pair of gears: 1. The modules of the two gears must be the same. 2. The pressure angles (tooth profile angles) of the two gears must be equal. 3. The addendum coefficients of the two gears must be equal. 4. The meshing center distance 'a' between the two gears must be within the required assembly tolerance range. Other correct meshing conditions for gear transmission: 1. Meshing conditions for spur gears: The modules of the two gears must be equal, and the pressure angles on the pitch circles must be equal. 2. Meshing conditions for helical gears: The normal modules of the two gears must be equal, the pressure angles must be equal, the helix angles must be equal and opposite in direction. 3. Meshing conditions for straight bevel gears: The modules and pressure angles at the large ends of the two gears must be equal, respectively.