Product name: Ushaped track pulley Material: Colored steel Packing: 4 Ushaped wheels Overview A heavyduty Ushaped track pulley designed for smooth, stable rolling on angle iron, round pipe, steel pipe and similar tracks. Constructed from colored steel with precision machining, double ball bearings, and sealed rubber covers for quieter, lowerfriction operation and long service life. Available sizes and specifications 1.2 inch Rotary diameter: 32 mm Wheel thickness: 25 mm Trough width: 17 mm Groove depth: 6 mm Bracket thickness: 2.5 mm Load capacity: 200 kg 2 inch Rotary diameter: 49 mm Wheel thickness: 28 mm Trough width: 22 mm Groove depth: 7 mm Bracket thickness: 2.5 mm Load capacity: 250 kg 2.5 inch Rotary diameter: 60 mm Wheel thickness: 32 mm Trough width: 25 mm Groove depth: 9 mm Bracket thickness: 2.5 mm Load capacity: 300 kg 3 inch Rotary diameter: 77 mm Wheel thickness: 32 mm Trough width: 27 mm Groove depth: 10 mm Bracket thickness: 2.5 mm Load capacity: 500 kg 4 inch Rotary diameter: 90 mm Wheel thickness: 32 mm Trough width: 27 mm Groove depth: 13 mm Bracket thickness: 2.5 mm Load capacity: 1000 kg Key benefits and features Smooth operation: Double ball bearings and doublesided rubber seals reduce friction and noise for consistent, quiet rolling. Durable construction: Colored steel wheel surface with plating resists wear and corrosion to extend usable life. Stable support: Thickened bracket and integrated bottom plate molding reduce deformation and maintain alignment under load. load capacity: Size options cover a wide range of load requirements from 200 kg to 1000 kg. Easy maintenance: Precisionmachined components and sealed bearings require less frequent servicing and reduce vibration during operation. Versatile compatibility: Designed for common tracked locations such as angle iron, round pipe, and steel pipe. Use scenarios Sliding gates and doors: worn rollers on residential or light industrial sliding gates running on angle iron tracks. Workshop trolleys and conveyors: Support mobile equipment on round pipe or steel pipe guide rails where stable, lownoise rolling is needed. Greenhouse curtains and overhead sliding systems: Provide smooth travel for fabric or panel systems that use Ushaped tracks. Additional notes Bracket thickness is 2.5 mm for all sizes. Product measurements are taken manually and may have slight deviations. Please refer to the actual product for final dimensions.