The Copapa 2-Inch Rubber Caster set is a mechanical assembly designed for low-decibel lateral movement. Material analysis reveals an outer tread composed of a soft-grip rubber (TPE/PU hybrid) mated to a high-impact polypropylene core. This hybrid construction functions as a vibration dampener, reducing acoustic resonance during operation on tile or hardwood surfaces.
Technical specifications indicate a 7/16-inch x 7/8-inch grip ring stem, facilitating universal installation in standard ergonomic chair bases. The dual-wheel configuration increases the contact patch surface area, which effectively distributes weight and prevents the localized compression typically associated with single-wheel designs on soft wood floors. The total static load capacity for a set of five is listed at 330 lbs.
Operational oversight requires periodic application of white lithium grease to the swivel race every 18 months to prevent mechanical clicking. The rubber tread material is subject to "flat-spotting" if maintained under heavy static load for extended durations.
Users requiring acoustically neutral movement for home studio environments may consider these rubber chair wheels as a specific alternative to high-resonance nylon units.
These components are located within the custom chair components repository of hardware upgrades.
