78.4mm Adjustable Sliding Door Carriage & Roller – Suits Sliding Doors

A direct replacement adjustable sliding door carriage & roller for sliding doors. Flat sided. 15mm wide. Round washer. Brass roller with bearing. Suits wardrobes, sliding timber doors and some sliding patio doors.

Key Features

• Brass construction
• Overall 78.4 x 38.8mm
• Australian stock, dispatched within 1 business day

Fits & Replaces

• Direct replacement for most Australian aluminium sliding door carriages of this pattern.
• The fit is decided by the 78.4 x 38.8mm overall size and the 15mm flat-sided body width — measure your old carriage across both before ordering.
• Print the Actual Size Identifier below and lay your old part straight onto it — that confirms the fit in seconds

Specifications

• TradeBase SKU: CAR78BR
• Material: Brass
• Overall size: 78.4 x 38.8mm

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.
• Fit the rear carriage first, then set the front carriage to get your clearance.
• Adjust last to bring the door parallel with the jamb, working from the handle side.
• 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

Covered by our 12-month warranty and 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 78.4 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.