KV 8525 18" Hold-In/Anti-Rebound Side Mount Over-Travel 175 lb Ball Bearing File Drawer Slide, Poly-Pack, Zinc, 8525P 18

Over-Travel File Drawer Slide That Stays Put When You Close It

The Knape and Vogt 8525 Series is an 18 inch side-mount ball bearing file drawer slide rated 175 lb per pair, built specifically for loaded file and lateral drawers that need 1-1/4 inches of over-travel past full extension and a hold-in anti-rebound detent that keeps the drawer from bouncing back open.

Key Features

• 175 lb load class per pair — steps above the standard 100 lb cabinet class to handle a lateral file drawer loaded with folders.
• 1-1/4 inch over-travel — the drawer member carries the box past full extension, clearing countertop overhangs and deep face frames so rear contents are fully reachable.
• Hold-in anti-rebound detent — a mechanical catch stops the loaded drawer from bouncing back open after a firm close; no spring assist and no damping, just a positive stay-closed feel.
• Steel ball bearings in full-length raceways — smooth, even travel under a full paper load across the life of the installation.
• Non-handed design — identical slides fit left and right, so there is no sorting on the bench and no risk of ordering two of the same side.
• Zinc finish on steel members — standard indoor corrosion protection sized for long service in office and cabinet environments.

Where the Over-Travel and Detent Work Together

File drawers under worktops and behind deep face frames create two problems at once: the drawer does not open far enough to reach the rear files, and a heavy close sends it bouncing back out. The 8525 addresses both. The 1-1/4 inch over-travel pushes the drawer box past the cabinet face so rear hanging files come out from under the overhang. The hold-in detent then catches the drawer when it is pushed closed — no rebound, no drift. These two features are the reason the 8525 exists as a distinct series rather than a straight file-slide upgrade over the full-extension 8500.

Materials, Finish, and Construction

The members are cold-formed steel with a zinc electroplate finish. Zinc is the working standard for side-mount ball bearing slides in office and cabinet applications: it protects the steel through years of indoor cycling and stays out of sight beside the open drawer. The ball bearings run in formed steel raceways the full length of the slide, distributing the 175 lb load rating evenly across the travel. This is a functional, in-cabinet finish — not a decorative or stainless surface.

The Right Drawer for This Slide

The 8525 series fits lateral files and heavy storage drawers that sit beneath a countertop overhang or behind a face frame deep enough that standard full-extension travel leaves the back of the drawer inaccessible. It is the right choice when the load exceeds what a 100 lb cabinet slide is rated for and when the drawer must stay closed after a brisk push — shop organizers, heavy archive drawers, and file pedestals in workstations all fit that profile. Build the drawer box 1 inch narrower than the cabinet opening to provide the required 1/2 inch side clearance for each slide. In face-frame cabinets, add the appropriate series rear mounting brackets, sold separately, to support the back end of each slide.

A File Drawer That Opens Farther and Closes Clean

When the combination of a heavy load, a counter overhang, and a bounce-back problem points to one slide, the 8525 series is it — 175 lb capacity, 1-1/4 inch over-travel, and a hold-in detent, all in the standard 1/2 inch clearance side-mount format.