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3" Stopping Bottom Bracket

Product Code:SBB3

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
Code Brackets Finish Gauge/Duty Quantity
SBB3 Stopping Bottom Bracket Zinc Plated NA  

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.