Up to 350 lbs · Light Duty Applications
Up to 7,200 lbs · Industrial Duty
Up to 17,500 lbs · Heavy Industrial
Up to 40,000 lbs · Extreme Load Applications
Up to 40,000 lbs · Increased Maneuverability
Up to 3,100 lbs · Industrial Shock Absorbing
Up to 3,200 lbs · Corrosion Resistant
Up to 8,400 lbs · Outdoor & Rough Terrain
1,000+ Styles · 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.
Engineered for OEM, MRO, and defense. Spec-match guarantee, engineering RFQ on every quote, fastest shipping in the caster industry.








The Durastar HPO Heavy Duty Polyolefin Wheels are engineered for durability and exceptional performance in heavy-duty applications. Crafted from high-performance polyolefin material, these wheels are built to withstand the rigors of demanding industrial environments, ensuring longevity and reliable service.
These wheels are designed to provide superior load-bearing capabilities, offering excellent resistance to wear and tear, chemicals, oils, and water. Whether used in factories, warehouses, or other commercial settings, Durastar HPO wheels provide a smooth, reliable, and long-lasting solution for your mobility needs.
Available in multiple sizes, these wheels are a perfect fit for various carts, trolleys, and heavy-duty equipment. With their superior strength and resistance to impact, they ensure your equipment can operate smoothly even under the toughest conditions.
Invest in Durastar HPO Heavy Duty Polyolefin Wheels to enhance your operations. Enjoy superior durability, exceptional performance, and reliable support for all your material handling needs.
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.
Engineering Tools Hub
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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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Designed for engineers, manufacturers, and material handling professionals
