also: ローラベアリング
noun
roller bearing
A mechanical bearing that uses cylindrical rollers to reduce friction between moving parts.
この機械にはローラーベアリングが使われている。
This machine uses roller bearings.
Spelling with an interpunct; sometimes seen in technical contexts.
Rare spelling with interpunct and without the long vowel mark.
Ball bearing uses balls instead of rollers; roller bearings can handle heavier loads.
Loanword from English 'roller bearing'.