Up to 350 lbs
Up to 6,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
High-capacity loads
Shock absorbing
Corrosion resistant
Outdoor / rough terrain
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.








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Made from high-quality, wear-resistant rubber, these adapters absorb shock and vibration while helping to protect floors from damage. The corrosion-resistant composition makes them ideal for environments with frequent cleaning, chemical exposure, or heavy-duty use.
Whether you’re upgrading carts, racks, or mobile workstations, Durastar expandable adapters deliver secure performance without the need for tools or maintenance. Enjoy fast, frustration-free installation and long-lasting support tailored to your specific tubing size.
Choose Durastar Rubber Expandable Adapters for a dependable, precision-fit solution that enhances caster stability, reduces noise, and protects equipment. Designed for performance. Built for durability.
