What is a bearing and what are its uses?

Name: Sale of ITC Ashtiani brand bearings in Tehran
Address: Plate 72, Tehran Passage, Nazem Al-Atba Alley, Ekbatan Street, Tehran, Plate 72, Tehran Passage, Nazem Al-Atba Alley, Ekbatan Street, Tehran, Tehran
Telephone: 09129594826
Price range: $$$

Sale of ITC Ashtiani brand bearings in Tehran

spare parts