This is the Atlas Copco rifle nut part number 3121089600, Crowder SKU AC-3121089600. It is part of the rotation mechanism of the rock drill the drive train that indexes the steel between blows. Wear here shows as slow or intermittent rotation.
Crowder’s breakdowns list this part on the BBD 46 WS/WR Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
If you need the parts around it, the parts breakdown index has the full breakdown library, and the Atlas Copco lineup covers the machines themselves. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3121089600
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121089600
- Listed on breakdowns for: BBD 46 WS/WR Rock Drill
