Sandvik / Tamrock
551 706 57 Rotation bushing assembly
Rock Drill Spare Part
| Part Number | 551 706 57 |
| Description | Rotation bushing assembly |
| Brand | Sandvik (Tamrock) |
| Assembly | Rock Drill |
| Type | Rock Drill Spare Part |
Quick answer
551 706 57 (also written 55170657, 551-706-57, or 551.706.57) is a Sandvik rotation bushing assembly spare part used in the Rock Drill assembly of the Sandvik DC122R. Verified compatible with 3 Sandvik machine models including DC122R, DQ100, DQ240R. Used in 1 drifter configuration (HEX1). 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: 55170657, 551 706 57, 551-706-57.
Compatible machines
3
Drifter configurations
1
OEM cross-reference
551 706 57
About Sandvik 551 706 57 Rotation bushing assembly
This precision-machined bushing is a critical wear component in the Sandvik DC122R drilling system. Bushings reduce friction between rotating and stationary parts, significantly extending the service life of the entire Rock Drill assembly. Regular inspection and timely replacement of worn bushings prevents costly damage to mating components and reduces unplanned downtime in mining operations.
This is an OEM-compatible aftermarket replacement part for the Sandvik DC122R (DC122R). 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.
