Sandvik / Tamrock
550 191 77 BEARING BUSHING
Rock Drill Spare Part
| Part Number | 550 191 77 |
| Description | BEARING BUSHING |
| Brand | Sandvik (Tamrock) |
| Assembly | HYDRAULIC ROCK DRILL |
| Type | Rock Drill Spare Part |
Compatibility
Drifter Models
Machine Models
Quick answer
550 191 77 (also written 55019177, 550-191-77, or 550.191.77) is a Sandvik bearing bushing spare part used in the HYDRAULIC ROCK DRILL assembly of the Sandvik DT820-SC. Verified compatible with 4 Sandvik machine models including AXERA D07 RP-112, AXERA T12 DATA-315 C, DT1330i. Used in 4 drifter configurations (HFX5, HFX5T, HLX5). 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: 55019177, 550 191 77, 550-191-77.
Compatible machines
4
Drifter configurations
4
OEM cross-reference
550 191 77
About Sandvik 550 191 77 BEARING BUSHING
This precision-machined bushing is a critical wear component in the Sandvik DT820-SC drilling system. Bushings reduce friction between rotating and stationary parts, significantly extending the service life of the entire HYDRAULIC 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 DT820-SC (DT820-SC). 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.
