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.

The Durastar RN Series 4" Rubber on Glass-Filled Nylon Wheels offer a superior balance of performance, durability, and smooth mobility. These wheels are engineered for applications where strength, reliability, and floor protection are essential—whether used on carts, dollies, or equipment in commercial and light industrial settings.
The non-marking rubber tread is securely bonded to a high-strength glass-filled nylon core, creating a wheel that performs quietly while absorbing shock and reducing operator fatigue. This construction also ensures chemical resistance and long-term performance, even in environments with moisture or cleaning agents.
With a 4-inch diameter optimized for stability and maneuverability, these wheels are a dependable solution for operations requiring consistent, floor-friendly movement with minimal rolling resistance.
Choose Durastar RN Series 4" Rubber on Glass-Filled Nylon Wheels to enhance your equipment's mobility. Trusted for their low noise, long life, and protective tread—these wheels are the smart choice for dependable performance across demanding applications.
