


Sandvik / Tamrock
770 197 92 Bearing, Roller
DD320S
Available — Request Quote| Part Number | 770 197 92 |
| Description | Bearing, Roller |
| Brand | Sandvik (Tamrock) |
| Assembly | Gearbox |
| Type | Drill Rig Spare Part |
Quick answer
770 197 92 (also written 77019792 or 770-197-92) is a Sandvik bearing, roller spare part used in the Gearbox assembly of the Sandvik DD422i. Verified compatible with 6 Sandvik machine models including DD320S, DD422i, DD422i-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: 77019792, 770 197 92, 770-197-92.
Compatible machines
6
OEM cross-reference
770 197 92
About Sandvik 770 197 92 Bearing, Roller
This high-performance bearing is designed for the Sandvik DD422i and serves a critical role in the Gearbox. It supports rotating elements under heavy axial and radial loads typical in underground and surface drilling applications, ensuring smooth and reliable machine operation.
This is an OEM-compatible aftermarket replacement part for the Sandvik DD422i (DD422i). 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.

