4 Inch Heavy Duty Industrial Casters with Dual Brake, M12 Threaded Stem Polyurethane Wheels Set of 4

Industrial caster, 4 inch polyurethane wheel, set of 4, red finish A durable caster assembly designed for trolleys, flatbed trucks, warehouse carts and other material handling equipment. Combines 304 stainless steel bracket construction, lowrollingresistance polyurethane wheels, and a reliable double bearing system for smoother movement and longer service life. Key benefits Smooth, loweffort movement: Two dustproof ball bearings built into each bogie provide up to 40 percent higher axial load capacity and reduce push and pull effort. Secure mounting and antiloosening design: Laser riveting plus an antiloosening gasket at the screw end reduces vibration and the risk of fastener loosening during use. Positive, easy locking: Double action locking delivers both wheel brake and steering brake. Pedaling force less than or equal to 4 kg makes locking quick and straightforward. Corrosion resistant bracket: Bracket formed from 304 stainless steel and cold rolled steel plate stamping with a thickness of 2.8 mm. Surface phosphating and electrostatic spraying improve corrosion resistance and finish durability. Longwearing wheel surface: Polyurethane tread resists abrasion and provides quieter operation compared to hard wheels. What makes this caster stand out Double bearing bogie for higher load capacity and smoother operation. Antislip rod process that combines laser riveting with an antiloosening gasket for secure, vibration resistant installation. Dual brake system for both wheel stop and swivel lock, allowing stable parking and controlled steering lock. Heavy duty bracket materials and finishing for extended service life in industrial environments. Technical specifications Wheel diameter: 4 inches Wheel surface material: Polyurethane Bracket material: 304 stainless steel with cold rolled steel plate stamping (thickness 2.8 mm) Mounting screw diameter options: M10 and M12 Bearing system: Two dustproof ball bearings in bogie Brake: Double action locking, wheel brake plus steering brake, pedaling force less than or equal to 4 kg Antiloosening: Laser riveting plus antiloosening gasket at screw end Quantity: 4 pieces per set Packing list: Caster Compatibility and typical uses Flatbed trucks and utility carts for moving tools, parts, or boxes across floors. Warehouse logistics carts and picking trolleys requiring reliable mobility and secure locking during loading. Maintenance and transport carts in factories or retail stockrooms where quiet, abrasion resistant wheels and corrosion resistant brackets are needed. Installation and basic care Select the correct screw diameter M10 or M12 for your mounting plate. Tighten securely to engage the antiloosening gasket. Inspect bearings and brakes periodically for debris. The dustproof bearing design reduces maintenance frequency but routine checks help ensure long life. Keep the brake mechanism of large debris and confirm pedal action remains within normal effort levels. This caster set provides a balance of load capacity, corrosion resistance and secure braking for industrial and logistics applications.