Wheel Bearings
Bearings play a critical role in caster performance by reducing friction between the wheel and axle, allowing for smoother movement and easier handling. The right bearing improves rolling efficiency, supports load capacity, and extends the life of the caster.
Different bearing types are designed for different applications, ranging from light-duty use to high-speed or heavy-load environments. Understanding these differences is key to selecting the right setup for your needs.
Annular ball bearings are a precision version of standard ball bearings, with hardened raceways that fully enclose the balls.
Compared to standard ball bearings, they provide smoother operation, higher load capacity, and longer service life. Especially in demanding or continuous-use applications.
Standard ball bearings use loose or caged balls to reduce friction and allow smoother rolling than bushings or roller bearings.
They offer a balance of performance and cost, making them suitable for a wide range of general-purpose applications.
A bushing uses a sleeve (typically plastic or metal) between the wheel and axle to reduce friction compared to a plain bore.
It provides quieter operation and improved wear over time, making it a solid choice for light to medium-duty applications with moderate use.
A Delrin bearing is a high-performance plastic bushing that offers lower friction and better wear resistance than standard bushings.
It provides smooth, quiet operation without the need for lubrication, making it ideal for light to medium-duty applications where cleanliness, corrosion resistance, or low maintenance are important.
Roller bearings use cylindrical rollers to handle higher load capacities while maintaining relatively low rolling resistance.
Ideal for heavy-duty applications where strength and durability are more important than high-speed performance.
Sealed precision ball bearings are fully enclosed to protect against dirt, debris, and moisture.
Unlike standard ball bearings, they require less maintenance and maintain consistent performance in harsh or contaminated environments.
