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.
No products found in this collection
Durastar Casters presents the S25 SERIES, the ideal solution for light to medium-duty applications. These Threaded Stem casters come equipped with Solid Polyurethane - SPU wheels, providing a robust combination of durability, smooth operation, and resistance to wear and tear. These casters ensure your equipment moves effortlessly, making them a reliable choice for various industries.
The S25 SERIES is designed for those who demand a balance between high load capacity and easy maneuverability. With its versatile Threaded Stem sizes, these casters are perfect for a wide range of applications, from industrial and warehouse environments to commercial settings. Their resilient SPU wheels provide smooth, quiet, and non-marking performance, making them ideal for both indoor and outdoor use.
Whether you're looking for a durable caster solution for light-duty tasks or need a reliable option for medium-duty applications, Durastar Casters' S25 SERIES delivers exceptional quality. Their easy installation, superior functionality, and long-lasting durability make them a top choice for businesses that value performance and efficiency.
Upgrade your mobility solutions with Durastar Casters' S25 SERIES. Featuring the advanced Solid Polyurethane - SPU wheels, these casters offer exceptional performance and reliability, making them a great addition to your operational workflow.
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
Publish the dedicated page, then replace this link. Find in hub
Failure Diagnosis Tool
Publish the dedicated page, then replace this link. Find in hub
Designed for engineers, manufacturers, and material handling professionals
