Sandvik / Tamrock
550 239 94d Plate, Bearing
DD321-40
| Part Number | 550 239 94d |
| Description | Plate, Bearing |
| Brand | Sandvik (Tamrock) |
| Assembly | Steering Assembly |
| Type | Drill Rig Spare Part |
Quick answer
550 239 94d (also written 55023994d, 550-239-94d, or 550.239.94d) is a Sandvik plate, bearing spare part used in the Steering Assembly assembly of the Sandvik DD321-40. Verified compatible with 23 Sandvik machine models including DD320S, DD321-40, DD321-40C. 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: 55023994d, 550 239 94d, 550-239-94d.
Compatible machines
23
OEM cross-reference
550 239 94d
About Sandvik 550 239 94d Plate, Bearing
Engineered to withstand the extreme loads and vibrations encountered in drilling operations, this bearing maintains precise alignment of rotating components in the Sandvik DD321-40. As part of the Steering Assembly, proper bearing maintenance is essential for optimal drill performance and reduced machine downtime.
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.
