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.


Ensure stability and reliability in every axle setup with Durastar Retainer Washers – Steel Combo Retainers. Designed from high-strength carbon steel, these retainers offer a secure solution for holding axle components in place, minimizing movement and maximizing load integrity.
Each steel combo retainer is precision-machined to provide a tight, consistent fit with your caster assembly, helping reduce vibration, wear, and axle misalignment. These components are a trusted choice for demanding applications such as warehouse carts, material handling units, and mobile equipment.
With protective coatings like zinc plating or black oxide, Durastar retainers resist corrosion and maintain performance even in challenging environments. When equipment safety and longevity matter, rely on these high-quality steel combo retainers to deliver consistent, professional-grade results.
Choose Durastar Steel Combo Retainers to elevate the performance and reliability of your caster systems. Built for durability, engineered for excellence.
