4 inch non-swivel industrial castor

4 inch non-swivel industrial castor Key Features: • Non-swivel (rigid) design provides stable, straight-line tracking for predictable movement • Available in multiple wheel materials: thermoplastic rubber, hard rubber, solid polyurethane, and phenolic resin • Load capacities ranging from 250 to 800 lbs per caster for light to heavy-duty applications • Top plate mounting configuration with standard bolt hole patterns for easy installation • Zinc-plated steel frame provides corrosion resistance and durability • Non-marking wheel options protect floor surfaces in commercial and industrial settings • Phenolic wheels offer spark-proof operation for hazardous environments • Solid polyurethane wheels resist flat-spotting for smooth rolling over time • Temperature range from -50°F to 250°F depending on wheel material • Ideal for carts, workbenches, industrial equipment, and material handling systems