A trolley wheel isa specific component of a caster, which is a wheel assembly designed to be attached to the bottom of a larger object for mobility. Trolley wheels, or industrial casters, come in a variety of materials and designs, each suited for different applications and load capacities.
Key features
The design and components of a trolley wheel determine its function and best use case.
Wheel material: Determines durability, load-bearing capacity, and noise level.
Polyurethane (PU):Known for being durable and resistant to abrasion, chemicals, and oils. It provides a quiet, smooth roll and protects floors.
Rubber:Provides excellent shock absorption and traction, making for a quiet ride. It is often used for indoor surfaces or uneven terrain.
Nylon:A lightweight but strong material that is resistant to corrosion and many chemicals, often used in wet environments.
Cast iron/steel:The most robust material for extremely heavy loads and high-temperature environments. However, it can be noisy and damage floors.
Load capacity: Categorized as light, medium, or heavy-duty, with the maximum supported weight varying significantly. This is a critical factor for safety and performance.
Wheel type: Different mounts provide varying levels of maneuverability.
Swivel wheels:Mounted on a pivot, these wheels can rotate 360 degrees for maximum maneuverability in tight spaces.
Fixed (or rigid) wheels:These wheels are locked into a forward-facing position and are best for moving trolleys in straight lines.
Bearings: Allow the wheel to roll smoothly and efficiently. Ball bearings are used for heavier-duty applications, while plain bearings are suitable for lighter use.
Braking mechanism: A braking feature can be included to prevent the wheel from turning, ensuring the trolley remains stationary during loading and unloading.
Common applications
The specific design of a trolley wheel is tailored to its intended environment.
Industrial:Heavy-duty casters with cast iron or polyurethane wheels are used on machinery, equipment, and carts in manufacturing, logistics, and warehousing to move heavy loads over rugged surfaces.
Commercial:Lighter-duty models are used on shopping carts and display stands in retail stores and hotels.
Medical:Quiet, non-marking rubber or polyurethane wheels are essential for hospital beds and medical equipment to avoid disturbing patients and to protect sensitive flooring.
Residential/Office:Small, often plastic or rubber, wheels are used on furniture, office chairs, and storage bins for light mobility.
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