Cover for Rotational Shaft Mechanism

This page is the CodyCross answer for the clue below from Inside the Spaceship, Group 1190, Puzzle 2 (Always Learning).

Question is: Cover for Rotational Shaft Mechanism

and the answer is: CRANKCASE

Word Meaning:

CRANKCASE — The part of an engine that contains the crankshaft.

Definitions from Wiktionary.