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.


















Spring loaded casters and spring wheels in rubber, polyurethane and cast iron, 4-1/2 to 10 in wheels, rated 250 to 3,000 lb per caster.
| Tread | Core | Wheel sizes | Rated per caster | Listed temperature | Where it fits |
|---|---|---|---|---|---|
| Rubber | 4-1/2 and 6 in | 250 to 500 lb | -45°F to 180°F | cushioned and quiet on finished floors | |
| Polyurethane | Cast iron | 6 and 10 in | 2,000 to 3,000 lb | -40°F to 180°F | quiet, floor-friendly and long wearing |
| Cast iron | 10 in | 3,000 lb | heat, chips and heavy loads on rough floors | ||
| Phenolic | 10 in | 1,200 lb | Up to 180°F | hard and easy rolling on smooth, dry floors | |
| Nylon | 6 in | 450 lb | -45°F to 180°F | low rolling effort on smooth floors, handles wet areas |
Ratings are for single casters of spring loaded casters and spring wheels, from product fields [S1].
| Wheel | Treads | Rated |
|---|---|---|
| 4-1/2 x 4 in | rubber | 450 lb |
| 6 x 2 in | rubber and nylon | 250 to 500 lb |
| 6 x 3 in | polyurethane | 2,000 lb |
| 10 x 3 in | polyurethane, cast iron and phenolic | 1,200 to 3,000 lb |
Related: industrial casters.
Single spring loaded casters and spring wheels are rated 250 to 3,000 lb; most fall between 450 and 3,000 lb.
Most spring loaded casters and spring wheels use 4 x 4-1/2 in. Others listed: 4-1/2 x 6-1/4 in and 6-1/4 x 7-1/2 in.
Rubber leads on spring loaded casters and spring wheels, rated 250 to 500 lb per caster. Polyurethane is next at 2,000 to 3,000 lb.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
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