Question

Which of the following factors can cause misalignment of the teeth on the pinion relative to those on the gear?

1. Inaccurate gear teeth

2. Misalignment of the axes of shafts carrying gears

3. Thermal distortions during operation

Select the correct answer using the code given below

1. 1 and 2 only
2. 1 and 3 only
3. 2 and 3 only
4. 1, 2 and 3
5.

Answer 1

Correct Answer - Option 4 : 1, 2 and 3

Explanation:

Cause misalignment of the teeth on the pinion relative to those on the gear:

• Check the compatibility/level of gear accuracy with the specified tolerances before actual use, i.e., to assure required accuracy and quality.
• Provide an insight into the performance of the gear manufacturing process including the setup of the gear-making machine tools (misalignment), condition of the gear cutting tools, machine tool control, and basic machining practices.
• Determine the thermal distortions caused by possible heat treatment to facilitate corrective action.
• Minimize the overall cost of manufacture by controlling rejection and scrapping.