geoffthehammer
Mechanical
- Jan 28, 2005
- 77
I am trying to devise a magnetic clamp/brake based on the same principles used in magnetic dial indicator bases (and as shown in wikipedia). The magnet would be approx 30mm diameter and 18/20mm across flats by approximately 45mm long. The steel/brass/steel block will be about 40mm square by 50mm deep.
I would envisage using a ferrite magnet and need to clamp the brake shoes to the block.
Questions.
1. If the magnet is supported in (stainless steel) ball bearings, how do I calculate the torqure required to rotate the magnet in order to turn the brake on and off?
2. How do I calulate the clamping force?
Any help would be much appreciated.
I would envisage using a ferrite magnet and need to clamp the brake shoes to the block.
Questions.
1. If the magnet is supported in (stainless steel) ball bearings, how do I calculate the torqure required to rotate the magnet in order to turn the brake on and off?
2. How do I calulate the clamping force?
Any help would be much appreciated.