The Distributor plate is designed to protect the plate that joins the Rotor, Rotor Boss and Shaft together from feed material falling into the rotor from the hopper.
This part is subject to wear from both the feed material falling onto it (impact) and it also being “distributed” to the three ports in the rotor (abrasive).
It is attached to the rotor using one bolt that screws into the top of the shaft. (HELPFUL TIP) – This bolthole must be protected by stuffing a cloth in the hole and either letting stone build up on top of the cloth to protect it, or filling the gap with silicone. This must be done, or it can be very difficult to remove the bolt when needed.
The distributor is the wear part that receives the most impact wear, and will normally wear out the fastest in standard applications. There is only 1 distributor plate in each dressed rotor.