For Single & Bi-Parting doors up to 100 lbs. System has four free-rolling nylon wheels mounted on pivoting rocker-arms which allow constant wheel contact with the 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: 3/4"min.Headroom: 1-7/8" min - 2-1/8" max
System 71034 Additional InformationProduct SpecificationsAdditional Info 2