ISO 9001:2015 Quality Manufacturing · ANSI ICWM Performance Tested
98.7% On-Time Ship Rate Across All Orders
200,000+ Orders Fulfilled for OEM & MRO Teams Nationwide
100+ Years of Combined Caster Industry Experience
Automatic Bulk Pricing | OEM & MRO Volume Discounts Applied at Checkout
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.
Introducing the Durastar Casters 21 SERIES, the ideal solution for your light to medium-duty needs. These casters combine durability and functionality to ensure your operations run smoothly, whether you're in a warehouse, medical facility, or industrial setting. The 21 SERIES is engineered with the highest quality materials to deliver exceptional performance in various applications, including carts, trolleys, and other light machinery.
Crafted with precision, these casters feature superior strength, making them a trusted choice for moderate load handling. Available in a range of wheel options, including those tailored for different flooring types, you can easily find the right caster for your specific needs. Whether you're navigating smooth floors or rougher terrain, the 21 SERIES will ensure reliable movement with minimal strain.
Durastar Casters prioritizes quality and user experience with every product. The 21 SERIES casters are engineered to minimize wear and tear, offering longevity and reliable performance. When you choose Durastar, you're selecting a product backed by expertise and designed for ease of use in a variety of environments.
Enhance your operations with the Durastar Casters 21 SERIES. Offering a seamless blend of durability, functionality, and performance, these casters are the perfect solution for all your light to medium-duty mobility 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