Looking for some 12T HTD 5M 8mm pulleys.
Eskating may have all what you need. Enter the page and chose steel pulleys with your particular specs: Width, Bore, Teeth Count, # of M4 Set Screws, and Overhang or not.
- they are in Italy, so you may expect deliveries between 7 to 20 days.
Oh! you also asking for keyways… contact them and ask for the keyways first, because I’m not seen them there.