Good Suggestions
Posted: Wed Feb 07, 2018 8:38 pm
Post good suggestions here. 
These two sites are pretty helpful:
https://www.electric-brake.com/
https://www.electric-clutches.com/
Actually, Wikipedia isn't that bad either...
https://en.wikipedia.org/wiki/Electromagnetic_brake
https://en.wikipedia.org/wiki/Electromagnetic_clutch