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12" x 4" Polyurethane Wheels

Diameter: 12 inTread: 3 to 4 inCapacity: 4,500 to 6,000 lb per wheelBrand: Durastar
The two polyurethane replacement wheels here come from Durastar, 12 in across on 3 to 4 in treads, rated 4,500 to 6,000 lb per wheel. Two examples are a 12 x 3 in polyurethane industrial replacement wheel rated 4,500 lb and a 12 x 4 in polyurethane steel industrial replacement wheel rated 6,000 lb. Polyurethane treads roll quietly, resist cuts and do not mark floors.

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2 types

Wheel = wheel diameter · capacity is per wheel.

2 options in this exact size and spec. See all casters by load capacity and mount type › or call 844-439-4335 for a cross-reference.

Durastar EX Series – 12" Heavy Duty Polyurethane on Steel Wheels


Top Product Features

  • Heavy-Duty Construction: Precision-machined steel core paired with durable polyurethane tread for maximum strength and longevity
  • Load Capacity: Engineered to support heavy loads with ease, ideal for industrial and commercial use
  • Wheel Diameter: 12-inch size for smooth rolling over uneven surfaces and debris
  • Resilient Polyurethane Tread: Designed to resist abrasion, chemicals, and floor damage while ensuring quiet operation
  • Versatile Application: Suitable for carts, dollies, material handling equipment, and mobile platforms in demanding environments

The Durastar EX Series 12" Polyurethane on Steel Wheel is built for performance in rugged environments where durability, load-bearing capacity, and floor protection are critical. Featuring an industrial-grade polyurethane tread bonded to a high-strength steel core, this wheel delivers long-lasting service under high stress and continuous use.

With its 12-inch diameter and precision-machined components, this wheel rolls smoothly and handles uneven or debris-laden floors with ease. The polyurethane tread is non-marking and resistant to common workplace hazards such as oil, chemicals, and abrasion—making it ideal for indoor or outdoor use in warehouses, factories, and maintenance facilities.

The EX Series is trusted by professionals across industries for its reliable load capacity, low rolling resistance, and extended performance lifespan. Whether you're outfitting a heavy-duty cart or building a mobile workstation, Durastar EX wheels offer the toughness and efficiency your workflow demands.

Power Through Demanding Jobs with Durastar EX Wheels

Upgrade your mobility systems with Durastar’s high-performance 12" polyurethane on steel wheels—engineered for strength, built to last, and ready to take on your toughest applications.

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