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.
Durastar’s Steel Retainer Washers are precision-engineered to ensure maximum reliability in caster and wheel assemblies. These washers serve as critical components in maintaining the secure positioning of wheels and axles, especially under dynamic loads and continuous motion. Their durable steel composition makes them highly resistant to deformation, providing dependable support across a wide range of heavy-duty applications.
Designed for seamless compatibility with Durastar casters and wheels, these retainer washers feature a corrosion-resistant finish that ensures longevity even in high-moisture or demanding environments. The low-profile shape allows for compact installation while delivering stable axial retention.
Whether used in manufacturing, distribution, warehouse operations, or equipment maintenance, Durastar Retainer Washers enhance safety, stability, and operational efficiency. Their robust design and proven reliability make them an essential choice for OEM builds and aftermarket replacements alike.
Optimize your caster assemblies with Durastar Steel Retainer Washers—designed for strength, precision, and lasting performance in every application.
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)
Share this page when discussing load rating per caster. Open load tool
Wheel Diameter Calculator
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Failure Diagnosis Tool
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Designed for engineers, manufacturers, and material handling professionals