254 implemented a custom brake disk solution in 2015 for there elevator carriages.
Quote:
Originally Posted by Travis Covington
We used 410 Stainless Steel to make a "disc" that pushed against a High Friction Molded Brake & Clutch Lining Sheet. It works just like a disc brake, except the forces are applied axially about the point of rotation.
As you can see, the disc spins and slides on a 3/8" hex shaft. This allowed us to install the disc brake outside of the gearbox. It was the smallest solution we could come up with.
See below:
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