Steel Double Wheel Rail Hanging Trolley Silver Track Roller Used for Heavy Barn or Shed Sliding Doors

Name: Sliding door window hanging pulley H4-3 Material: High quality steel Surface: silver Dimensions: 52mmx25mmx 78mm/2.05x0.98x3.07inch(LxWxH) wheel diameter 24mm/0.94"" > Fitting suitable for door thickness 35-45mm(special for 2 specifications of screws) > Supports 90kg Suitable for warehouse door, indoor door, kitchen door hardware, American sliding door and so on Features: 1. Double pulley design: two-way adjustment, open and close easily and smoothly, horizontal and vertical adjustment, made of durable integrated precision shaped steel. 2. Material use: It is made of durable integrated precision shaped steel, equipped with steel ball bearings, strong and smooth rolling, smooth running. 3. Fixing method: welding positioning or deep embedding positioning of bolts to ensure the stability of work. 4. Used in conjunction with box rails to support suspended loads, the design rating is suitable for horizontal mounting channels where loads are suspended straight down