32mm Concave Sliding Door Roller – Acetal 25kg

The 32mm Concave Sliding Door Roller is a direct replacement wheel for sliding patio, screen, shower and wardrobe doors. It is turned from acetal and rated to 25kg per roller, and the concave profile runs on a rounded or round-top track, the most common profile on patio, screen and sliding doors.

Key Features

• Concave profile, 31.6mm outside diameter
• Acetal wheel with a 6.4mm bore
• 7.6mm groove width
• 14.4mm overall width
• Rated to 25kg per roller
• Plain bore, takes your existing axle or pin

Ideal For

• Sliding patio and screen doors
• Shower screens and wardrobe doors
• Replacing worn or seized rollers that drag or jump the track

Pack Contents

• 1 x roller

Compatibility

• Fits aluminium patio and screen doors
• Check the dimension drawing against your existing part before ordering — sliding door hardware varies between brands and series

Specifications

• TradeBase SKU: ROL32CNC25-14
• Outside diameter: 31.6 mm
• Overall width: 14.4 mm
• Groove width: 7.6 mm
• Bore diameter: 6.4 mm
• Wheel material: Acetal
• Load rating: 25 kg per roller
• Mounting: Plain Bore

Installation Tips

• Check the track before you fit. File any burrs or flat spots smooth — a damaged track will chew out a new roller within weeks.
• Clean all grit and old grease out of the track. Grit is what kills a roller, not load.
• Replace carriages in pairs. A new roller running against a worn one carries uneven load and both wear out early.
• Measure the old roller before ordering — the replacement has to match on outside diameter and overall width.
• Match the tread profile and the axle as well. Flat, concave, convex and V-groove wheels are not interchangeable, and the bore or stud thread must suit the existing housing.
• Slide the door through its full travel before refitting stops or screens.

Care & Maintenance

• Use a dry lubricant only — silicone or dry PTFE. Oil and grease hold dust and grind the roller.
• Sweep the track out every few months, more often in coastal or dusty areas.

Warranty

10-year warranty. This warranty is in addition to your rights under the Australian Consumer Law.

Check the fit before you buy

Download the TradeBase Actual Size Identifier (PDF) and print it on A4 at 100% / Actual size — not Fit to page. The part is reproduced at true 1:1 scale on a 10 mm grid and measures 31.7 mm overall. Lay your existing part straight onto the page to confirm it matches. A calibration bar on the sheet lets you check the printer has not scaled the page.