Sandvik / Tamrock
550 103 03a RUBBER BUSHING
DD321-40
| Part Number | 550 103 03a |
| Description | RUBBER BUSHING |
| Brand | Sandvik (Tamrock) |
| Assembly | Step Box |
| Type | Drill Rig Spare Part |
Quick answer
550 103 03a (also written 55010303a, 550-103-03a, or 550.103.03a) is a Sandvik rubber bushing spare part used in the Step Box assembly of the Sandvik DX700. Verified compatible with 15 Sandvik machine models including DD320S, DD321-40, DD321-40C. 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: 55010303a, 550 103 03a, 550-103-03a.
Compatible machines
15
OEM cross-reference
550 103 03a
About Sandvik 550 103 03a RUBBER BUSHING
A vital component in the Step Box of the Sandvik DX700, 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 DX700 (DX700). 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.
