Sandvik / Tamrock
770 213 23 Bearing, Roller
DL321-7
| Part Number | 770 213 23 |
| Description | Bearing, Roller |
| Brand | Sandvik (Tamrock) |
| Assembly | Hub |
| Type | Drill Rig Spare Part |
Quick answer
770 213 23 (also written 77021323, 770-213-23, or 770.213.23) is a Sandvik bearing, roller spare part used in the Hub assembly of the Sandvik DL321-7. Verified compatible with 1 Sandvik machine model including DL321-7. 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: 77021323, 770 213 23, 770-213-23.
Compatible machines
1
OEM cross-reference
770 213 23
About Sandvik 770 213 23 Bearing, Roller
Precision-manufactured for the Sandvik DL321-7, this bearing component in the Hub 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 DL321-7 (DL321-7). 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.
