


Sandvik / Tamrock
770 081 41 Ball bearing
DD320-40
| Part Number | 770 081 41 |
| Description | Ball bearing |
| Brand | Sandvik (Tamrock) |
| Assembly | TRANSFER GEAR BOX |
| Type | Drill Rig Spare Part |
Quick answer
770 081 41 (also written 77008141, 770-081-41, or 770.081.41) is a Sandvik ball bearing spare part used in the TRANSFER GEAR BOX assembly of the Sandvik DD320-40. Verified compatible with 1 Sandvik machine model including DD320-40. 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: 77008141, 770 081 41, 770-081-41.
Compatible machines
1
OEM cross-reference
770 081 41
About Sandvik 770 081 41 Ball bearing
Precision-manufactured for the Sandvik DD320-40, this bearing component in the TRANSFER GEAR BOX 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 DD320-40 (DD320-40). 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.









