Chuck Retainer Ball Set is the Chicago Pneumatic service part carried under part number R278012. 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.
You will find it on the diagram for the CP 9RR 9RRS Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
The parts diagram library indexes every breakdown we publish, and the CP tool catalog has the tools these parts go into. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: R278012
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R278012
- Listed on breakdowns for: CP 9RR 9RRS Rock Drill
