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Sandvik / Tamrock
550 257 94 BEARING HOUSING ASSEMBLY
Rock Drill Spare Part
Available — Request Quote| Part Number | 550 257 94 |
| Description | BEARING HOUSING ASSEMBLY |
| Brand | Sandvik (Tamrock) |
| Assembly | HYDRAULIC ROCK DRILL HEX 1 |
| Type | Rock Drill Spare Part |
Compatibility
Drifter Models
Machine Models
Quick answer
550 257 94 (also written 55025794 or 550-257-94) is a Sandvik bearing housing assembly spare part used in the HYDRAULIC ROCK DRILL HEX 1 assembly of the Sandvik DC122R. Verified compatible with 8 Sandvik machine models including COMMANDO 120 RF, COMMANDO 120R, COMMANDO DC125R. 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: 55025794, 550 257 94, 550-257-94.
Compatible machines
8
Drifter configurations
1
OEM cross-reference
550 257 94
About Sandvik 550 257 94 BEARING HOUSING ASSEMBLY
Engineered to withstand the extreme loads and vibrations encountered in drilling operations, this bearing maintains precise alignment of rotating components in the Sandvik DC122R. As part of the HYDRAULIC ROCK DRILL HEX 1, proper bearing maintenance is essential for optimal drill performance and reduced machine downtime.
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
Why are bearings critical in drilling equipment?
Bearings support rotating shafts and components under extreme loads and vibrations. Failed bearings can cause catastrophic damage to gearboxes, drive trains, and drilling mechanisms, leading to extended downtime and costly repairs.
What causes premature bearing failure in mining equipment?
Common causes include contamination from dust and water ingress, misalignment during installation, excessive loads, inadequate lubrication, and operating beyond rated temperature ranges. Proper sealing and regular lubrication schedules are essential preventive measures.
