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Knape and Vogt 8505 drawer slide gives you a 28 inch over travel, so a file drawer can extend beyond the cabinet for better access to hanging files and contents near the back. This side mount ball bearing slide is made in USA, which helps shops standardize on a domestic source for repeat projects. The slide height of 3-51/64 inches supports deeper file drawer sides, important when laying out drawer box dimensions. Side clearance of 1/2 inch plus 1/32 inch minus 0 inch on each side sets a clear target for drawer width, helping keep runners tracking smoothly under load. The 8505P 28 model uses ball bearing construction, so the movement stays controlled along the full travel. An anochrome finish covers the members, which offers a clean metal surface that pairs well with typical cabinet interiors.
This side mount drawer slide class installs along the drawer sides, and the specified side clearance of 1/2 inch plus 1/32 inch minus 0 inch each side guides both cabinet opening and drawer box sizing. The slide is designed as a 28 inch unit, so carcass depth and drawer length can be coordinated around that fixed dimension. The height of 3-51/64 inches, including the quick disconnect rail, shows how much space the slide occupies vertically on the drawer side, which affects where you locate it relative to the drawer bottom. With a 32 mm pattern listed, this slide can align to standard shelf-pin style hole rows, which streamlines mounting in system cabinetry.
This drawer slide is described as a ball bearing file drawer slide, so it is aimed at file drawer applications in cabinets where smooth movement and full access are valuable. The 28 inch length suits deeper office and commercial file cabinets that carry letter or legal-size files. Over travel lets the drawer move beyond the front of the cabinet, bringing files near the back into reach without leaning into the opening. The height of 3-51/64 inches supports taller drawer sides commonly used on file drawers, which helps maintain lateral stability when fully extended. With a 32 mm pattern, this slide integrates into casework built around system holes, supporting repeat installations across a run of cabinets.
Factory-attached drawer release clips with quick disconnect drawer members let you separate the drawer from the cabinet member, which speeds installation, removal, and adjustments during shop fitting. A hold-in feature to prevent bounce back keeps the drawer front resting against the cabinet front when closed, reducing nuisance opening from vibration in busy spaces. Positive in and out stops define both ends of travel, preventing over-extension or accidental pull-out during use. The retainer holds three bearings per inch of race for smooth and quiet motion, which helps drawers feel controlled even under file loads. Progressive movement on ball bearings means the members move in a coordinated sequence, supporting consistent travel from initial opening to full over travel extension.
This ball bearing file drawer slide is described for file drawer use, so it suits cabinets where drawers carry files and benefit from over travel for full access.
The 28 inch over travel drawer slide lets the drawer extend beyond the cabinet face, improving reach to files at the back of the drawer during daily use.
Side clearance of 1/2 inch plus 1/32 inch minus 0 inch each side defines the gap between slide and drawer, guiding precise drawer width calculations.
Factory-attached release clips with quick disconnect drawer members allow drawers to be removed and reinstalled efficiently during fitting, finishing, or service.
The hold-in feature to prevent bounce back keeps drawers seated when closed, which is useful in offices or shops where movement can nudge drawers outward.
The retainer holds three bearings per inch of race, supporting smooth and quiet motion along the full slide length in regular file drawer operation.
The Knape and Vogt 28 inch over travel drawer slide 8505P 28 offers a defined 28 inch length, side clearance of 1/2 inch plus 1/32 inch minus 0 inch, and a height of 3-51/64 inches, so you can design file drawers around clear numbers. Features like factory-attached quick disconnect drawer members, a hold-in feature to prevent bounce back, positive in and out stops, and progressive movement on ball bearings support smooth, controlled motion. When a project calls for a made in USA ball bearing file drawer slide with these characteristics, this model aligns the hardware choice with those requirements.
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