Sandvik / Tamrock
770 210 31 Bushing
DL321-7
Available — Request Quote| Part Number | 770 210 31 |
| Description | Bushing |
| Brand | Sandvik (Tamrock) |
| Assembly | Brake |
| Type | Drill Rig Spare Part |
Quick answer
770 210 31 (also written 77021031 or 770-210-31) is a Sandvik bushing spare part used in the Brake assembly of the Sandvik DL321-7. Verified compatible with 1 Sandvik machine model including DL321-7. Available as an aftermarket replacement drill part from BK Drilling — Turkey-based Sandvik and Epiroc spare parts supplier serving mining contractors worldwide. Quote on request via WhatsApp; typical lead time 3-7 days for stock items.
Part code alternate forms: 77021031, 770 210 31, 770-210-31.
Compatible machines
1
OEM cross-reference
770 210 31
About Sandvik 770 210 31 Bushing
A vital component in the Brake of the Sandvik DL321-7, this bushing acts as a sacrificial wear element designed to protect more expensive surrounding components. Its precise dimensional tolerances ensure smooth operation and minimal vibration during drilling operations.
This is an OEM-compatible aftermarket replacement part for the Sandvik DL321-7 (DL321-7). Also compatible with Tamrock branded equipment of the same model series. BK Drilling supplies this part with fast worldwide shipping and competitive pricing.
Frequently asked questions
What does a bushing do in a drilling machine?
A bushing acts as a wear-resistant liner that reduces friction between moving and stationary parts. It protects more expensive components from direct contact wear, extends service intervals, and maintains precise alignment of rotating elements in drilling equipment.
How often should bushings be replaced?
Bushing replacement intervals depend on operating conditions, but typical mining applications require inspection every 500-1000 operating hours. Signs of wear include increased play or vibration, unusual noise, and visible scoring or deformation of the bushing surface.
