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Sandvik / Tamrock
BG 003 773 12a Bearing Assembly
DT821-C
Available — Request Quote| Part Number | BG 003 773 12a |
| Description | Bearing Assembly |
| Brand | Sandvik (Tamrock) |
| Assembly | Gearbox |
| Type | Drill Rig Spare Part |
Quick answer
BG 003 773 12a (also written BG00377312a or BG-003-773-12a) is a Sandvik bearing assembly spare part used in the Gearbox assembly of the Sandvik DT821-C. Verified compatible with 9 Sandvik machine models including DD321-40C, DD421-60, DD421-60C. 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: BG00377312a, BG 003 773 12a, BG-003-773-12a.
Compatible machines
9
OEM cross-reference
BG 003 773 12a
About Sandvik BG 003 773 12a Bearing Assembly
Precision-manufactured for the Sandvik DT821-C, this bearing component in the Gearbox 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 DT821-C (DT821-C). 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.
