Sandvik / Tamrock
803 978 39a Bearing, Spherical, Roller
Rock Drill Spare Part
Available — Request Quote| Part Number | 803 978 39a |
| Description | Bearing, Spherical, Roller |
| Brand | Sandvik (Tamrock) |
| Assembly | Rock drill |
| Type | Rock Drill Spare Part |
Quick answer
803 978 39a (also written 80397839a or 803-978-39a) is a Sandvik bearing, spherical, roller spare part used in the Rock drill assembly of the Sandvik DT820. Verified compatible with 2 Sandvik machine models including DT820, RANGER DX500. Used in 1 drifter configuration (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: 80397839a, 803 978 39a, 803-978-39a.
Compatible machines
2
Drifter configurations
1
OEM cross-reference
803 978 39a
About Sandvik 803 978 39a Bearing, Spherical, Roller
Precision-manufactured for the Sandvik DT820, 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 DT820 (DT820). 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.
