Right Angle Corner Pulley — Convex Corner Code Roller for Sliding Door & Window Tracks Standard straight-run pulleys cannot navigate the corner sections of angled or L-shaped sliding door and window tracks—the door binds, skips, or derails at the turn. This right angle corner pulley is specifically designed for convex corner track sections, allowing sliding doors and windows to change direction smoothly without jamming or lifting off the track. Made from plastic with nylon or brass wheel inserts, the system is available in five configurations: upper gear only, nylon lower wheel only, brass lower wheel only, nylon lower wheel + upper gear combo, and brass lower wheel + upper gear combo. Select the component or set that matches your existing track hardware and corner type. Use it on angled balcony-to-living-room sliding doors, corner study windows, L-shaped wardrobe sliding door tracks, or any sliding door or window system where the track changes direction at a convex corner. ✅ Compatible with convex corner sliding door and window track systems — upper gear and lower wheel components available separately or as matched combo sets ✅ Key Features of This Right Angle Corner Pulley 🔳 Convex Corner Code Design: Engineered specifically for convex corner track sections—the angle code connector positions the roller correctly at the turn so the door or window panel navigates the corner without binding or derailing. 🔄 Upper Gear + Lower Wheel System: The upper gear engages the top track channel while the lower wheel runs along the bottom track—together they keep the panel stable and aligned through the corner transition. 🔘 Nylon & Brass Wheel Options: Nylon wheels are quieter and suit lighter panels and aluminum tracks; brass wheels provide greater load capacity and durability for heavier panels and metal tracks. Choose the wheel material that matches your panel weight and track type. 📦 Combo Sets Available: Order the upper gear and lower wheel together in a single variant—ensures matched hardware for a complete corner roller replacement without sourcing components separately. 🔇 Smooth, Low-Noise Operation: Bearing-assisted wheel rotation reduces friction through the corner section—the panel glides through the turn without grinding, squeaking, or resistance. 🔧 Screwdriver Installation: Mounts to the door or window panel with standard screws—no specialist tools required. Align the angle code connector with the corner track position and tighten to secure. 🎯 Who Is This For? 🏠 Angled Balcony & Living Room Sliding Doors Sliding doors that transition from a balcony track to an interior track at a corner angle—the convex corner code keeps the panel on track through the direction change. 🚪 L-Shaped Wardrobe & Closet Sliding Doors Wardrobe sliding door systems with an L-shaped or corner track layout require a corner roller at the turn point—replace worn or missing corner pulleys to restore smooth panel movement around the bend. 🏢 Commercial Corner Sliding Doors Shop display windows, office partition doors, and commercial sliding systems with angled track layouts—the brass wheel variants handle the heavier panel loads common in commercial installations. Body Material Plastic Wheel Material Options Nylon, brass Corner Type Convex corner (outward-facing corner track) Available Variants Upper gear only; nylon lower wheel only; brass lower wheel only; nylon lower wheel + upper gear; brass lower wheel + upper gear Installation Method Screw-mount with standard screwdriver Application Angled sliding doors, L-shaped wardrobe tracks, corner window tracks, commercial sliding door systems ❓ Frequently Asked Questions What is a convex corner code and how is it different from a standard pulley? A convex corner code is a bracket-and-roller assembly designed for the outward-facing corner sections of an L-shaped or angled sliding track. A standard straight-run pulley cannot navigate a track corner—it will bind or derail at the turn. The convex corner code positions the roller at the correct angle to guide the door or window panel smoothly through the direction change. Do I need both the upper gear and lower wheel, or just one? Most sliding door and window systems use both an upper gear (which engages the top track) and a lower wheel (which runs along the bottom track) at the corner section. If only one component has failed, you can order just the upper gear or lower wheel. For a complete replacement, the combo variants (nylon or brass lower wheel + upper gear) provide both in one order. How do I choose between nylon and brass lower wheels? Nylon wheels are quieter and suit lighter door and window panels on aluminum tracks. Brass wheels provide greater load capacity and durability for heavier panels or metal track systems that see frequent use. If your existing lower wheel is brass, replace with brass; if nylon, replace with nylon to maintain matched performance. How do I identify a convex corner vs. a concave corner on my track? A convex corner is an outward-facing corner—the track bends away from the room interior at the turn point. A concave corner is an inward-facing corner. This product is designed for convex corner track sections. If your track has an inward-facing corner, a different corner pulley type would be required. How do I install the corner pulley? Remove the door or window panel from the track. Locate the corner position on the panel where the existing corner roller is mounted. Unscrew the old assembly and remove it. Align the new angle code connector with the mounting holes and tighten the screws with a standard screwdriver. Reinstall the panel in the track and test the slide through the corner. Adjust the roller position if any resistance is felt at the turn. How do I maintain the corner pulley? Clean the wheel and track channel at the corner section regularly to remove dust and debris that accumulate at the turn point. Apply a small amount of silicone lubricant to the wheel if rolling resistance increases. Check mounting screws periodically and tighten if loose—corner pulleys experience more lateral force than straight-run rollers and may loosen faster under heavy use. 🛒 Select your wheel type and configuration above, then add to cart.