Hangers include one or two 7/8" [22mm] diameter molded nylon machine
turned wheels with three point locking plates. Hangers
adjust without removing or relocating screws. Standard
hangers are tested for doors weighing up to 50lbs. [23kg.] each
twin wheel hangers are tested for doors weighing up to
75lbs. [34kg.] each. Twin wheel hangers with rocker feature ensure equal
weight distribution and lower rolling resistance.
header are one unit and available with or without timber sections.
Precision extruded aluminum track with Convex
rail design to provide single point hanger wheel contact for low roll
resistance, and dust traps on both sides of rails allow hangers to
operate freely when dust builds up.
nylon guide posts always stay parallel to the door preventing door
binding and guides are adjustable for slight door thickness variations.
Johnson hardware is rigidly tested to meet ANSI standards.