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Kotomora

ヘリカルギヤ

also: ヘリカルギア

ヘ
リ
カ
ル
ギ
ヤ

Meanings

1

noun

helical gear

A gear with teeth cut at an angle, used in machinery for smoother and quieter operation than spur gears.

See also: 斜歯歯車