Sony A-8324-287-A Moving Head Cleaner Assembly (RP) also known as Cleaning Roller Assembly for BVW-75 and all other BVW, Betacam, Betacam SP Series VTRs. This cleaning roller is for contacting the area between the lower and upper drum. It cleans as the upper drum spins, allowing it to self-clean as it goes.
New Old Stock
There are two ways this part comes: either the bottom plate is attached to the Cleaning Roller Assembly, or it is provided separately, as the photos show. Both versions are new straight out of the manufacturer's box. Attaching the bottom plate is easy as there are line-up slots to use.
The manufacturer also included an instructions sheet.