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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
Stainless Steel
Up to 8,400 lbs.
Explore All Specialty Caster Applications
From Everyday Use to Niche Solutions
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 PPU Series 4" Wheels combine durability and versatility, making them the ideal choice for light-duty carts, equipment, and display systems. With a robust polyurethane tread securely molded to a polyolefin core, these wheels offer a balance of strength and floor-safe performance.
Engineered to deliver smooth, quiet rolling and resistance to common chemicals, these 4" caster wheels perform reliably in both commercial and industrial environments. Their compact profile allows for easy navigation in tight or low-clearance areas, without compromising on load-bearing capability.
Suitable for various flooring surfaces including tile, concrete, and epoxy-coated floors, the PPU wheels help reduce maintenance by minimizing wear and surface damage. Whether you're upgrading a workstation, a retail fixture, or light utility equipment, Durastar’s polyurethane on polyolefin wheels deliver consistent results.
Invest in long-lasting mobility with the Durastar PPU 4" Wheels—engineered for quiet, floor-safe, and dependable performance across a wide range of applications.
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
All tools + dedicated pages (best for sharing and EEAT). Open hub
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