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.
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.
























Hamilton Workhorse WH casters in polyurethane, phenolic and nylon, 3-1/4 to 8 in wheels, rated 450 to 2,000 lb per caster.











| Tread | Core | Wheel sizes | Rated per caster | Listed temperature | Where it fits |
|---|---|---|---|---|---|
| Polyurethane | Cast iron and Aluminum | 3-1/4, 4, 5, 6 and 8 in | 450 to 2,000 lb | -5°F to 160°F | quiet, floor-friendly and long wearing |
| Phenolic | 3-1/4, 4, 5, 6 and 8 in | 700 to 1,400 lb | Up to 250°F | hard and easy rolling on smooth, dry floors | |
| Nylon | 4, 5, 6 and 8 in | 2,000 lb | -30°F to 220°F | low rolling effort on smooth floors, handles wet areas | |
| Cast iron | 4, 5, 6 and 8 in | 1,000 to 2,000 lb | -22°F to 750°F | heat, chips and heavy loads on rough floors | |
| Steel | 4, 5 and 6 in | 1,400 to 2,000 lb | -22°F to 750°F | heavy loads and track |
Ratings are for single casters of Hamilton Workhorse WH casters, from product fields [S1].
| Wheel | Treads | Rated |
|---|---|---|
| 3-1/4 x 2 in | phenolic and polyurethane | 575 to 700 lb |
| 4 x 2 in | polyurethane, phenolic and nylon | 450 to 2,000 lb |
| 5 x 2 in | polyurethane, phenolic and nylon | 600 to 2,000 lb |
| 6 x 2 in | polyurethane, phenolic and nylon | 800 to 2,000 lb |
| 8 x 2 in | polyurethane, phenolic and nylon | 1,000 to 2,000 lb |
Related to Hamilton Workhorse WH casters: industrial casters, 8 x 2 in polyurethane casters and nylon casters.
Single Hamilton Workhorse WH casters are rated 450 to 2,000 lb; most fall between 940 and 1,950 lb.
Most Hamilton Workhorse WH casters use 4 x 4-1/2 in. Other plates on Hamilton Workhorse WH casters: 4 x 5 in.
Polyurethane leads on Hamilton Workhorse WH casters, rated 450 to 2,000 lb per caster. Among Hamilton Workhorse WH casters, phenolic is next at 700 to 1,400 lb.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
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