50.6mm Sliding Door Roller – Suits Commercial Hanging Doors

A direct replacement sliding door roller for commercial hanging doors. UNF stud. Acetal concave roller with bearing. Suits Masterglide®, Tomma®, Glidemaster® and others. Roller only — carriage not included. Suits our 100kg Top-Fix Carriage & Roller (CARTOP100).

Key Features

• Acetal construction
• Acetal concave roller with bearing
• UNF stud
• Overall 50.6 x 50mm
• Roller only — carriage not included
• Australian stock, dispatched within 1 business day

Fits & Replaces

• Direct replacement for Masterglide®, Tomma® and Glidemaster® commercial hanging door rollers.
• Match the 50.6mm roller diameter, the 50mm roller width, the concave profile and the UNF stud against your existing roller — if those match, it fits
• Print the Actual Size Identifier below and lay your old part straight onto it — that confirms the fit in seconds

Specifications

• TradeBase SKU: ROL51CNC
• Material: Acetal
• Roller profile: concave, on bearing
• Axle: UNF stud
• Overall size: 50.6 x 50mm

Installation Tips

• Match the new roller to the old one on diameter, profile (concave, convex, flat or V-groove) and axle — this one uses a UNF stud, so check the thread on your old roller before ordering.
• Check the track for burrs and flat spots and file them 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 rollers in pairs. A new roller running against a worn one carries uneven load and both wear out early.

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 50.6 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.