The Durastar ERN Series 4" wheel combines premium-grade elastic rubber tread with a robust glass-filled nylon core to deliver unmatched performance in demanding environments. These wheels are engineered for applications that require quiet, smooth rolling with exceptional floor protection and load-bearing capability.
The elastic rubber tread offers a cushioned ride, absorbing shock and reducing vibrations—making it perfect for carts, racks, and material handling systems in healthcare, hospitality, commercial, and institutional settings. The non-marking material also protects sensitive flooring, including tile, vinyl, and epoxy-coated surfaces.
Constructed with a reinforced glass-filled nylon core, these wheels resist cracking, corrosion, and impact damage, ensuring reliable operation even in harsh conditions. Whether in wet, dry, or chemically exposed environments, the ERN wheel stands up to the challenge.
Upgrade your equipment with Durastar’s ERN 4" wheels—engineered for quiet performance, long life, and dependable support. A smart choice for efficient, ergonomic mobility in every roll.
These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.
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Load Calculator (dedicated)
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Wheel Diameter Calculator
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Failure Diagnosis Tool
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