Ordering by number: this is 3121002300, the Atlas Copco rotation chuck bushing. This part keeps the steel captive in the rock drill under repeated impact, so it is inspected at every steel change and replaced on condition rather than on a schedule.
Crowder’s breakdowns list this part on the RH 658L/LS/LS-01 Rock Drill and RH 656W Rock Drill. It comes off the RH 658 L Surface Rock Drill. Pull up the diagram and confirm the reference number for your serial before ordering.
Need the parts around it? They are on the same breakdown, and the parts diagram hub covers every machine we publish. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3121002300
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121002300
- Listed on breakdowns for: RH 658L/LS/LS-01 Rock Drill, RH 656W Rock Drill

