Capstan Motor Bearing Cap for A77, B77, PR99, A700, C270
Revox & Studer 1/4" tape recorder Capstan Motor Plastic Felt / Bearing Cap
These are suitable for most 1/4" Revox and Studer tape recorders.
Small lube hole is incorporated which is the later modification by Studer which can be filled by small dropper / needle.
The part is OEM sourced.