Heavy Duty Double Nylon Rollers Sliding Window Sash Pulley Wheel Featuring 12.5mm X 8mm Track Width And 52mm Bolt Spread For No Fuss Install And Glides Like Butter

Replace worn tracks with heavy duty sliding window pulley
✔️ 52mm bolt spread 12 5mm roller nylon steel makes quick work

You get one single heavy duty sash replacement wheel built to handle daily friction. This stainless steel and nylon assembly is pretty handy for fixing sticky sliding windows without extra tools. You snap it into older track slots on bedroom units, patio doors, or garage vents where reliable movement keeps drafts out.

✅ Overall measurements sit at 64x16x12 5 millimeters and 2 52x0 63x0 5 inches
✅ Roller diameter measures 12 5 by 8 millimeters or 0 5 by 0 31 inches for tight groove engagement
✅ Mounting holes center 52 millimeters and 2 05 inches apart to skip alignment guesswork
✅ Fits slot widths of 16 millimeters while matching standard 4 millimeter fasteners

💡 Why do heavy duty sliding window pulleys fail on vintage aluminum tracks?
Your existing pivot points collect grit and rust because cheap housings leak water straight into the axle.
- Thick nylon inner sleeves resist abrasion while keeping friction smooth across dirty grooves
- Precise 52mm mounting spacing aligns perfectly with legacy screw patterns on older frames
- Sturdy stainless steel cores prevent warping when seasonal temperature swings hit forty degrees
- Simple snap fit design saves you from drilling extra holes or buying proprietary adapters