Heavy duty U-groove track pulley wheel set for inverted round tube systems, cast iron sliding door rollers rated 300 kg per wheel, designed for wire rope rails, industrial machines, and smooth rolling doors, includes 4 pieces with 56 mm diameter

Heavy-Duty U-Groove Wheel Set for Round Tube Tracks and Doors
✔️ 4 pcs in pack; sizes 49-93 mm; load up to 900 kg

These heavy-duty U-shaped groove wheels are designed for round pipe tracks and inverted track systems. They’re ideal for sliding doors, industrial machinery trolleys, and gates where smooth, quiet operation matters.

✅ Wheel sizes: 49, 56, 78, 93 mm; four-wheel set up to 900 kg
✅ Built-in double bearings for smooth, low-friction sliding
✅ Cast iron U-shaped groove wheel with rust-resistant finish
✅ Suitable for round pipe tracks and inverted track systems

Wheel Ø	Installation height	4-wheel load
49 mm (1.9 in)	56 mm (2.2 in)	600 kg
56 mm (2.2 in)	64 mm (2.5 in)	750 kg
78 mm (3.1 in)	83 mm (3.3 in)	750 kg
93 mm (3.7 in)	106 mm (4.2 in)	900 kg

💡 What is a heavy-duty U-groove wheel used for in track systems and how does it help sliding doors and industrial equipment?

This handy, durable wheel helps you move loads smoothly on round tracks. - It works with round pipes and inverted rails for clean, quiet movement
- Cast iron construction stands up to tough use in industrial settings
- Double bearings cut friction and extend service life
- Works with standard round-tube tracks for quick upgrades