Need Help! Bridgeport CNC Quill Motor Pulley and X-axis Belt

I have a 1979 Bridgeport Series I CNC mill. The aluminum quill motor pulley has 26 teeth, 4" diameter, 5/8" shaft, Bridgeport part number 2-77-0134, and uses a 300H075 drive belt (Bridgeport part number 1-77-0232). My quill motor pulley is 1:1 with the quill. Does anyone know the generic part number part number and recommended source for this pulley?

Also, does anyone have the correct generic part number for the x-axis belt (Bridgeport part number 1-77-0063)?

Thanks,
Scott