Up to 350 lbs
Up to 6,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
High-capacity loads
Shock absorbing
Corrosion resistant
Outdoor / rough terrain
OEM replacements
All measurements indicate the wheel diameter by the tread width.
The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.
W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.

The Durastar EX Series 6" 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 6-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.
Upgrade your mobility systems with Durastar’s high-performance 6" polyurethane on steel wheels—engineered for strength, built to last, and ready to take on your toughest applications.
