Sandvik / Tamrock
551 645 72b Shaft
DD321-40
| Part Number | 551 645 72b |
| Description | Shaft |
| Brand | Sandvik (Tamrock) |
| Assembly | Bracket |
| Type | Drill Rig Spare Part |
Quick answer
551 645 72b (also written 55164572b, 551-645-72b, or 551.645.72b) is a Sandvik shaft spare part used in the Bracket assembly of the Sandvik DD321-40. Verified compatible with 14 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: 55164572b, 551 645 72b, 551-645-72b.
Compatible machines
14
OEM cross-reference
551 645 72b
About Sandvik 551 645 72b Shaft
An essential drivetrain component in the Sandvik DD321-40, this shaft serves the Bracket by reliably transferring torque and rotational motion. Manufactured from high-strength alloy steel, it withstands the continuous mechanical stress of mining and drilling applications.
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
What are signs of shaft wear in drilling machines?
Symptoms include increased vibration during operation, unusual noise from the drivetrain, visible wear marks or scoring on shaft surfaces, and difficulty maintaining proper alignment of connected components.
