When selecting wheels for a mobile outdoor trash bin, several practical factors determine performance and longevity. First, consider wheel material: polyurethane wheels offer excellent durability and weather resistance for paved surfaces, while pneumatic (air-filled) rubber tires provide better shock absorption on uneven terrain like gravel or grass. For heavy commercial use, look for heavy-duty caster systems with load ratings exceeding your bin's maximum capacity.
Next, evaluate terrain compatibility. Smooth, swiveling casters work well on flat concrete, but for outdoor areas with cracks or slopes, larger wheels (6-8 inches) with ball bearings ensure smoother movement. All-terrain wheels with tread patterns prevent slipping on wet surfaces.
Load capacity is critical—calculate the bin's weight when fully loaded and choose wheels rated for at least 30% more weight to prevent premature wear. Opt for sealed bearings to resist dirt and moisture, reducing maintenance needs. Finally, ensure the mounting hardware is corrosion-resistant (e.g., stainless steel) for outdoor exposure. Regular cleaning of debris around axles and occasional lubrication will keep your bin moving effortlessly for years.