Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
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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.
Rubber and polyurethane favor floor protection; phenolic and steel favor heavy capacity. Compare materials →
3 options in this exact size and spec. See all casters by load capacity and mount type › or call 844-439-4335 for a cross-reference.



| Tread | Core | Wheel sizes | Rated per caster | Listed temperature | Where it fits |
|---|---|---|---|---|---|
| Nylon | 3 in | 1,000 lb | Up to 180°F | low rolling effort on smooth floors, handles wet areas | |
| Polyolefin | 3 in | 500 lb | -45°F to 180°F | wet and chemical areas, light to medium loads | |
| Polyurethane | 3 in | 550 lb | -40°F to 180°F | quiet, floor-friendly and long wearing |
Ratings are for single casters of Durastar X05 series casters, from product fields [S1].
Single Durastar X05 series casters are rated 500 to 1,000 lb.
Most Durastar X05 series casters use 4 x 4-1/2 in.
Nylon leads on Durastar X05 series casters, rated 1,000 lb per caster. Among Durastar X05 series casters, polyolefin is next at 500 lb.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
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