Sandvik / Tamrock
551 744 89 Bearing
DS422i-7C
Available — Request Quote| Part Number | 551 744 89 |
| Description | Bearing |
| Brand | Sandvik (Tamrock) |
| Assembly | Differential Assembly (No Pinion & Ring Gear) |
| Type | Drill Rig Spare Part |
Quick answer
551 744 89 (also written 55174489 or 551-744-89) is a Sandvik bearing spare part used in the Differential Assembly (No Pinion & Ring Gear) assembly of the Sandvik DS422i-7C. Verified compatible with 1 Sandvik machine model including DS422i-7C. 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: 55174489, 551 744 89, 551-744-89.
Compatible machines
1
OEM cross-reference
551 744 89
About Sandvik 551 744 89 Bearing
Precision-manufactured for the Sandvik DS422i-7C, this bearing component in the Differential Assembly (No Pinion & Ring Gear) 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 DS422i-7C (DS422i-7C). 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.
