Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
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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.
Custom made to order. All sales final.
Each Hamilton product is custom manufactured for your order (lead time is shown on each product page). Please confirm all specs before checkout, since made-to-order items aren't eligible for returns, exchanges or refunds. Need help? Call 844-439-4335 or email info@casterhq.com and we'll verify fit for you.
Wheel = wheel diameter · capacity is per caster.
























| Tread | Core | Wheel sizes | Rated per caster | Listed temperature | Where it fits |
|---|---|---|---|---|---|
| Polyurethane | Aluminum and Cast iron | 3-1/4 to 10 in | 575 to 4,100 lb | -5°F to 160°F | quiet, floor-friendly and long wearing |
| Cast iron | 4, 5, 6, 8 and 10 in | 750 to 2,600 lb | -40°F to 320°F | heat, chips and heavy loads on rough floors | |
| Nylon | 3-1/2 to 10 in | 1,000 to 3,200 lb | -30°F to 220°F | low rolling effort on smooth floors, handles wet areas | |
| Phenolic | 3-1/4, 4, 5, 6 and 8 in | 600 to 1,400 lb | Up to 250°F | hard and easy rolling on smooth, dry floors | |
| Forged steel | 4, 5, 6, 8 and 10 in | 1,000 to 3,200 lb | -22°F to 750°F | very high loads and impact | |
| Rubber | Steel | 4, 5, 9 and 10 in | 700 to 3,700 lb | 0°F to 175°F | cushioned and quiet on finished floors |
| Steel | 3-1/2, 6 and 8 in | 1,000 to 1,500 lb | -22°F to 750°F | heavy loads and track |
Ratings are for single casters of Hamilton kingpinless casters, from product fields [S1].
| Wheel | Treads | Rated |
|---|---|---|
| 3-1/2 x 2 in | polyurethane, nylon and steel | 550 to 1,000 lb |
| 4 x 2 in | polyurethane, cast iron and nylon | 450 to 2,000 lb |
| 5 x 2 in | polyurethane, nylon and cast iron | 600 to 2,150 lb |
| 6 x 2 in | polyurethane, cast iron and nylon | 800 to 2,500 lb |
| 6 x 3 in | polyurethane, nylon and cast iron | 1,800 to 3,200 lb |
| 8 x 2 in | polyurethane, cast iron and nylon | 1,000 to 2,800 lb |
| 8 x 3 in | polyurethane and cast iron | 1,760 to 3,200 lb |
| 10 x 3 in | polyurethane, nylon and cast iron | 2,200 to 3,200 lb |
Related to Hamilton kingpinless casters: industrial casters, medium duty and heavy duty.
Single Hamilton kingpinless casters are rated 575 to 4,100 lb; most fall between 1,000 and 2,000 lb.
Most Hamilton kingpinless casters use 4-1/2 x 6-1/2 in. Other plates on Hamilton kingpinless casters: 2-1/2 x 3-5/8 in and 4 x 4-1/2 in.
Polyurethane leads on Hamilton kingpinless casters, rated 575 to 4,100 lb per caster. Among Hamilton kingpinless casters, cast iron is next at 750 to 2,600 lb.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
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