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 caster.
























| Tread | Core | Wheel sizes | Rated per caster | Listed temperature | Where it fits |
|---|---|---|---|---|---|
| Rubber | Polyolefin and Nylon | 5, 6, 8 and 10 in | 350 to 1,000 lb | -45°F to 180°F | cushioned and quiet on finished floors |
| Polyurethane | Steel and Polyolefin | 5, 6, 8 and 10 in | 750 to 1,500 lb | -45°F to 180°F | quiet, floor-friendly and long wearing |
| Semi-steel | 5, 6, 8 and 10 in | 1,000 to 1,500 lb | -45°F to 600°F | rough floors, heat and heavy loads | |
| Nylon | 5, 6, 8 and 10 in | 1,000 to 1,500 lb | Up to 180°F | low rolling effort on smooth floors, handles wet areas | |
| Ductile iron | Steel | 5, 6, 8 and 10 in | 1,500 lb | -45°F to 800°F | heavy loads with better impact strength than cast iron |
| Polyolefin | 5, 6 and 8 in | 700 to 1,200 lb | -45°F to 180°F | wet and chemical areas, light to medium loads | |
| Cast iron | 5, 6 and 8 in | 1,000 to 1,400 lb | -45°F to 800°F | heat, chips and heavy loads on rough floors |
Ratings are for single casters of Durastar 35 series casters, from product fields [S1].
| Wheel | Treads | Rated |
|---|---|---|
| 5 x 2 in | rubber, polyurethane and semi-steel | 350 to 1,500 lb |
| 6 x 2 in | rubber, polyurethane and semi-steel | 500 to 1,500 lb |
| 6 x 2-1/2 in | rubber, steel and semi-steel | 600 to 1,500 lb |
| 8 x 2 in | rubber, polyurethane and semi-steel | 600 to 1,500 lb |
| 8 x 2-1/2 in | rubber, semi-steel and polyurethane | 700 to 1,500 lb |
| 10 x 2-1/2 in | rubber, polyurethane and semi-steel | 1,000 to 1,500 lb |
Related to Durastar 35 series casters: rubber casters, 8 x 2 in rubber casters and 8 x 2 in rubber casters.
Single Durastar 35 series casters are rated 350 to 1,500 lb; most fall between 700 and 1,500 lb.
Most Durastar 35 series casters use 4-1/2 x 6-1/4 in.
Rubber leads on Durastar 35 series casters, rated 350 to 1,000 lb per caster. Among Durastar 35 series casters, polyurethane is next at 750 to 1,500 lb.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
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