The following are in the gear milling business:
- Acme Gear
- Cincinnati Gear
- Custom Gear and Machine
- Milwaukee Gear
- Perry Techn.
- Raycar Gear and Mach.
- Schaefer Gear Works
- Supreme Gear
- US Gear Corp
- Vermont Mach. Tool
Perhaps among these you can find your video.
A listing in Gear Techn. Mag., Mar/Apr issue, shows a video avail:
"Fundamentals of Gears and Gear Mfg" from SME cust svc:
tel 800-733-4769
fax 312-240-8252