Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
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.
Wheel = wheel diameter · capacity is per wheel.



















| Tread | Core | Wheel sizes | Rated per wheel | Listed temperature | Where it fits |
|---|---|---|---|---|---|
| Polyolefin | 2 to 8 in | 100 to 800 lb | -45°F to 180°F | wet and chemical areas, light to medium loads |
Ratings are for single wheels of Durastar polyolefin wheels, from product fields [S1].
| Wheel | Treads | Rated |
|---|---|---|
| 3 x 1-1/4 in | polyolefin | 250 to 300 lb |
| 4 x 1-1/4 in | polyolefin | 300 to 350 lb |
| 5 x 1 in | polyolefin | 145 lb |
| 5 x 1-1/4 in | polyolefin | 325 to 375 lb |
| 5 x 2 in | polyolefin | 600 lb |
| 6 x 1-1/2 in | polyolefin | 650 lb |
| 6 x 2 in | polyolefin | 700 lb |
| 8 x 2 in | polyolefin | 800 lb |
Related to Durastar polyolefin wheels: caster wheels.
Single Durastar polyolefin wheels are rated 100 to 800 lb; most fall between 145 and 600 lb.
Polyolefin leads on Durastar polyolefin wheels, rated 100 to 800 lb per wheel.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
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