nonmoving part

In a piece of machinery with multiple parts, a part that is not powered to move.

Japanese Meaning

動かない部品 / 非可動部品 / 固定部品

The technician inspected the nonmoving part to ensure it wouldn't cause wear on the adjacent gears.

技術者は、隣接する歯車に摩耗を引き起こさないよう、その固定部品を検査した。

Sense（1）

In a piece of machinery with multiple parts, a part that is not powered to move.

nonmoving parts

（ plural ）