Specification snapshot — the 16″ x 5″ tier
Below: the full capacity, tread, bearing, and application matrix for every 16″ x 5″ caster on the page. Pick by floor type and load profile, not by photo — the wheels in this size look similar but the core material drives 80% of life expectancy.
| Tread |
Capacity |
Best Floor |
Bearing |
Common Use |
| Polyurethane on Cast Iron |
8,000–10,000 lb |
Concrete, epoxy |
Tapered roller |
Aerospace tooling, heavy assembly |
| Heat-Dissipating Poly |
8,000–10,000 lb |
Hot/warm concrete |
Tapered roller |
Foundry, forge, paint line |
| Forged Steel |
10,000 lb |
Steel plate, embedded rail |
Tapered roller |
Steel mill, shipyard |
| Solid Rubber on Iron |
5,000–7,000 lb |
Mixed indoor/outdoor |
Roller |
Yard transfer, dock-to-dock |
Why 16″ diameter changes the math
Rolling resistance scales inversely with wheel diameter under heavy load. A 16″ wheel under 10,000 lb generates roughly 40% less rolling resistance than an 8″ wheel at the same load — on a 50 ft push, that’s the difference between a one-person move and a two-person move. The other benefit: contact patch. The 5″ tread width spreads load to about 6 square inches of floor contact per wheel, dropping point pressure low enough to roll across most rated industrial floors without cracking.
Bearing choice at this capacity
Standard ball bearings fail under sustained 10-ton loads. Every 16″ x 5″ caster on the page uses tapered roller bearings — dual-row for the heaviest builds, single-row for the 5,000–7,000 lb tier. Tapered rollers handle both radial load (the weight) and thrust load (cornering force) simultaneously, which is exactly the load profile of an extreme-duty caster.
Floor warning — A 10,000 lb caster on standard 4-inch concrete will eventually crack the slab at the wheel path. For sustained loads above 8,000 lb you need either 6-inch reinforced concrete, steel distribution plates on standard concrete, or embedded steel rail. Confirm floor rating before deploying.
Pick rules — the short version
For aerospace and defense assembly fixtures: polyurethane on cast iron. For foundry and heat-cycling environments: heat-dissipating poly. For steel mill and shipyard: forged steel. For outdoor or mixed-floor transfer carts: solid rubber on iron. Default to polyurethane unless you have a specific reason to deviate — it’s the best balance of load, floor protection, and service life across general industry.
Common 16″ x 5″ questions
Can my floor handle a 10,000 lb caster?4-inch concrete = no for sustained loads. 6-inch reinforced = yes. If you’re unsure, use steel distribution plates under the caster path to spread point load.
Polyurethane vs forged steel — which lasts longer?Polyurethane on smooth concrete: 5–10 years. Forged steel on rough or hot floors: 10–25 years. Steel wears slower but is harder on the floor — pick the trade carefully.
Do I need swivel or rigid?For powered movement (tugger, tow vehicle): 2 rigid + 2 swivel is standard. For manual movement at this capacity: 4 rigid plus a fifth wheel for steering, or 2 fixed + 2 swivel with a brake on each swivel.
What kingpin type at this load?Kingpinless tapered roller construction. Standard kingpin casters fail under repeated 10,000 lb cornering load.
Are these casters AGV-rated?For AGV duty at 10,000 lb you need an AGV-specific build — precision balance, low rolling resistance, low maintenance. See our
aerospace caster guide for AGV detail.
Spec a 16″ x 5″ build
Send floor type, load weight, and movement method (powered/manual). We’ll match the right tread + bearing.
Call 844-439-4335
