Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which orientation matters when fitting a ring gear?

  • A.The chamfered face must face the starter pinion
  • B.Either orientation is acceptable, since the teeth are symmetrical and therefore engage equally well from either side
  • C.The gear must be centred
  • D.The unworn face must be presented, which is achieved by reversing the gear when it is refitted to the flywheel

Answer: A

The lead chamfer helps the pinion enter, and fitting the gear reversed makes engagement harsh and noisy. Reversing to present an unworn face is a genuine technique but only where the chamfer permits it, which is why the last option tempts. Reading the definition literally, rather than recalling a summary, avoids the usual confusion. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.