ball bearing
preferred label: بلبرینگ @fa
type: Concept
related: rolling bearing

roller (machinery)
preferred label: غلتک (ماشین‌آلات) @fa
type: Concept
related: rolling bearing

machine bearing
preferred label: یاتاقان ماشین @fa
type: Concept
narrower: rolling bearing

rolling bearing
alternative label: rolling element bearing
scope note: rolling element bearing
related: ball bearing
related: roller (machinery)
broader: machine bearing
preferred label: یاتاقان غلتان @fa
type: Concept