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.




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.
