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 |
|---|---|---|---|---|---|
| Polyurethane | Polyolefin and Steel | 2-1/2 to 12 in | 100 to 4,000 lb | -45°F to 180°F | quiet, floor-friendly and long wearing |
| Rubber | Polyolefin | 2-1/2 to 12 in | 100 to 1,200 lb | -45°F to 180°F | cushioned and quiet on finished floors |
| Nylon | 3 to 12 in | 300 to 2,500 lb | Up to 180°F | low rolling effort on smooth floors, handles wet areas | |
| Polyolefin | 2-1/2 to 10 in | 100 to 2,000 lb | -45°F to 180°F | wet and chemical areas, light to medium loads | |
| Ductile iron | Steel | 4 to 12 in | 1,500 to 6,000 lb | -20°F to 800°F | heavy loads with better impact strength than cast iron |
| Phenolic | 3 to 12 in | 400 to 3,500 lb | Up to 250°F | hard and easy rolling on smooth, dry floors | |
| Semi-steel | 4 to 12 in | 425 to 3,000 lb | -45°F to 800°F | rough floors, heat and heavy loads |
Ratings are for single wheels of Durastar wheels, from product fields [S1].
| Wheel | Treads | Rated |
|---|---|---|
| 3 x 1-1/4 in | rubber, polyurethane and polyolefin | 175 to 400 lb |
| 4 x 1-1/4 in | rubber, polyurethane and nylon | 220 to 700 lb |
| 4 x 2 in | polyurethane, nylon and rubber | 300 to 1,500 lb |
| 5 x 1-1/4 in | rubber, polyurethane and polyolefin | 250 to 900 lb |
| 5 x 2 in | polyurethane, nylon and rubber | 350 to 1,500 lb |
| 6 x 2 in | polyurethane, nylon and rubber | 250 to 2,000 lb |
| 8 x 2 in | polyurethane, rubber and nylon | 600 to 2,100 lb |
| 8 x 3 in | polyurethane, ductile iron and rubber | 250 to 6,000 lb |
Related to Durastar wheels: caster wheels, Durastar polyurethane wheels and thermoplastic rubber wheels.
Single Durastar wheels are rated 100 to 6,000 lb; most fall between 350 and 1,500 lb.
Polyurethane leads on Durastar wheels, rated 100 to 4,000 lb per wheel. Among Durastar wheels, rubber is next at 100 to 1,200 lb.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
Search
