3" Stopping Bottom Bracket
- For use with 3" track.
- Maximum Door Weight: 2,200 lbs.
- Minimum Door Weight: 100 lbs.
- Minimum Cable Tension required: 50 lbs.
- Weight 19.5 lbs/pr
Use of this bracket when properly installed will reduce the risk of a free falling door in the event of cable breakage or disengagement. For use on hi-lift and vertical lift doors only with a minimum open door weight of 100 lbs. Add an additional 5" inches to the calculated length of a thimbled loop torsion cable assembly.