For Bi-Passing doors up to 100 lbs. System has four free-rolling nylon wheels mounted on pivoting rocker-arms which allow constant contact with track. Each door therefore, rides on eight wheels. Skipping or jumping is impossible. The ball-and-socket suspension compensates for minor header misalignment. Hangers are secured by vibration proof stop nuts.Mounting: SideAdjustment: 1/4" verticalDoor Thickness: 1-3/8"Headroom: 1-7/8" min - 2-1/8" max
System 72138 Additional InformationProduct SpecificationsAdditional Info 2