Sandvik / Tamrock
551 900 37a Housing, Bearing
Rock Drill Spare Part
Available — Request Quote| Part Number | 551 900 37a |
| Description | Housing, Bearing |
| Brand | Sandvik (Tamrock) |
| Assembly | Bearing Assembly |
| Type | Rock Drill Spare Part |
Quick answer
551 900 37a (also written 55190037a or 551-900-37a) is a Sandvik housing, bearing spare part used in the Bearing Assembly assembly of the Sandvik DD321-40. Verified compatible with 6 Sandvik machine models including DD321-40, DD421-60C, DD422i-60C. Used in 3 drifter configurations (HLX5, RD520, RD525). 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: 55190037a, 551 900 37a, 551-900-37a.
Compatible machines
6
Drifter configurations
3
OEM cross-reference
551 900 37a
About Sandvik 551 900 37a Housing, Bearing
Precision-manufactured for the Sandvik DD321-40, this bearing component in the Bearing Assembly 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 DD321-40 (DD321-40). 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.
