For Door Thickness 3/4" Minimum. Top Mount, Adjustable. A medium duty commercial and residential grade sliding door hardware series ideal for single and bi-parting installations. Applications include doors between rooms, closet doors, cabinets, storage walls, and partitions. For doors weighing up to 150 lbs (68 kg), optional nylon wheel carrier up to 100 lbs (45 kg)
A medium duty commercial and residential grade sliding door hardware series ideal for single and bi-parting installations. Applications include doors between rooms, closet doors, cabinets, storage walls, and partitions.
• For doors 3/4" and up weighing up to 150 lbs (68 kg), optional nylon wheel carrier up to 100 lbs (45 kg)
• Precision ball-bearing wheels guarantee a smooth, quiet and long lasting performance.
• Heavy duty aluminum I-beam track; jump proof design
• Pivoting rocker arms ensure track-carrier contact.
• Ball and socket suspension compensates for minor header misalignment.
• Lock nut guarantees permanent positioning.
• Vertical adjustment
• Conforms to ANSI/BHMA standards, Grade 1
• Made in USA
Hettich/Grant Top Line 71-222 Specifications 
(611kb PDF file)