Sandvik / Tamrock
551 552 04b Bearing Assembly
Rock Drill Spare Part
| Part Number | 551 552 04b |
| Description | Bearing Assembly |
| Brand | Sandvik (Tamrock) |
| Assembly | Rock Drill |
| Type | Rock Drill Spare Part |
Quick answer
551 552 04b (also written 55155204b, 551-552-04b, or 551.552.04b) is a Sandvik bearing assembly spare part used in the Rock Drill assembly of the Sandvik DD421-60C. Verified compatible with 1 Sandvik machine model including DD421-60C. Used in 1 drifter configuration (RD525). 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: 55155204b, 551 552 04b, 551-552-04b.
Compatible machines
1
Drifter configurations
1
OEM cross-reference
551 552 04b
Reference image
Available
About Sandvik 551 552 04b Bearing Assembly
Precision-manufactured for the Sandvik DD421-60C, this bearing component in the Rock Drill 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 DD421-60C (DD421-60C). 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.
