Sandvik / Tamrock
550 487 20a Bearing
DX700
Available — Request Quote| Part Number | 550 487 20a |
| Description | Bearing |
| Brand | Sandvik (Tamrock) |
| Assembly | PISTON MOTOR |
| Type | Drill Rig Spare Part |
Quick answer
550 487 20a (also written 55048720a or 550-487-20a) is a Sandvik bearing spare part used in the PISTON MOTOR assembly of the Sandvik DX700. Verified compatible with 6 Sandvik machine models including DX700, DX780, DX780R. 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: 55048720a, 550 487 20a, 550-487-20a.
Compatible machines
6
OEM cross-reference
550 487 20a
About Sandvik 550 487 20a Bearing
Precision-manufactured for the Sandvik DX700, this bearing component in the PISTON MOTOR provides reliable rotational support even under the harsh vibration and impact conditions of rock drilling. Timely replacement prevents cascading damage to adjacent drivetrain components.
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
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.
