Back-Up Ring

Engineered for demanding surface and underground operations, the Back-Up Ring (OEM 3217 3921 07) is a premium aftermarket replacement for rock drilling and drifter equipment. It retains, guides or seals adjacent components in position, maintaining correct assembly alignment and supporting reliable internal operation.

Manufactured from hardened, wear-resistant material to precise tolerances, it withstands vibration, pressure and cyclic loading while ensuring secure, repeatable performance. Offered as an aftermarket alternative, it delivers full interchangeability and proven durability at a more competitive cost.

Delkom manufactures and exports premium alternative rock drilling, drifter equipment and spare parts to more than 100 countries. Contact us for current availability, bulk pricing and technical support.