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Pneumatic Wheels — Air-Filled Industrial Tires

Diameter: 8, 10 inTread: 2-3/4 to 3-1/2 inCapacity: 250 to 350 lb per wheel
Replacement pneumatic wheels for hand trucks, carts and equipment, in two builds: tube-type air tires and poly-foam flat-free tires of the same size. Air tires carry 250 lb at 8 x 3 in and 350 lb at 10 x 3-1/2 in, and the foam tires 250 lb at 8 x 2-3/4 in and 280 lb at 10 x 3 in. A spare B&P inner tube with valve stem is here too for 10 in tires.

Pneumatic Wheels: buying guide

Pneumatic replacement wheels in 8 and 10 in sizes, either air-filled with an inner tube or poly-foam filled so they never go flat. Air tires are rated 250 to 350 lb and foam tires 250 to 280 lb per wheel.

8 and 10 in250 to 350 lb per wheelAir or poly-foamShips from Mansfield, TX

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Two ways to build a pneumatic-size wheel

Every wheel on this page has the tall, soft profile of a hand truck tire, but the inside differs. An air tire uses an inner tube you inflate [S1]. A poly-foam tire is filled solid, so it keeps its shape with no air at all [S1]. Hamilton offers foam-filled tires as a factory option on its own pneumatic casters for exactly this reason: flat-free service with a similar footprint [S2].

Wheel Build Rated load Hub
8 x 3 in Air, tube-type 250 lb Centered CB-FP82C or offset CB-FP82O
10 x 3-1/2 in Air, tube-type 350 lb Two listings
B&P 10 x 3.5 in Air, 4-ply See listing Steel hub, 5/8 in bore, sealed bearings
8 x 2-3/4 in Poly-foam, flat-free 250 lb Centered CB-FF284C or offset CB-FF284O
10 x 3 in Poly-foam, flat-free 280 lb Two listings
B&P 10 in tube Inner tube with valve stem Not a wheel Fits 10 in tires

Product fields and listing text [S1].

Picking air or foam

Pick air when cushion matters most. Pressure is adjustable, so you can soften the tire for a light, fragile load or pump it up for heavy work and easier rolling [S2]. Pick foam when downtime matters most, such as rental fleets, job sites with nails and screws, or equipment that sits for months between uses and would come back flat. Foam tires give up a little cushion and stay at a fixed firmness.

Both builds are rubber-treaded and suit dirt, grass and rough pavement. Neither is for heat or harsh chemicals: Hamilton rates its rubber pneumatic tires low for chemical and abrasion resistance and to 120°F at the top end [S3].

Sizing a replacement

  1. Read the sidewall. The size code molded on the tire gives section width and rim diameter. If the sidewall is worn off, measure overall height and tread width.
  2. Hub offset. Hand trucks usually take offset hubs and caster forks centered hubs. Our 8 in air and 8 in foam tires come both ways.
  3. Bore. 1/2, 5/8 and 3/4 in sealed precision bearings are offered on CasterHQ pneumatic wheels [S1]. The B&P wheel is 5/8 in only.
  4. Load. The highest single-tire rating here is 350 lb. Heavier loads belong on solid rubber tires at up to 650 lb or on dual-wheel pneumatic casters.

Pneumatic replacement wheel questions

Can I replace an air tire with a flat-free tire?

Yes, if the diameter, width, hub offset and bore match. Our 8 x 2-3/4 in foam tire replaces an 8 in air tire, and the 10 x 3 in foam tire a 10 in air tire. The foam tires are rated a bit lower on the 10 in size, 280 lb against 350 lb.

Do you sell just the inner tube?

Yes. The B&P 10 in pneumatic tire tube with valve stem fits 10 in tires.

What does 4-ply mean on a pneumatic tire?

Ply rating describes the strength of the tire casing. Hamilton uses 4-ply on its 8, 10 and 12 in pneumatic casters and moves to 6, 8 and 10-ply on larger sizes.

Which pneumatic wheel holds the most weight?

On this page, the 10 x 3-1/2 in air tires at 350 lb each.

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.
  • [S2] Hamilton Caster, Cush-N-Aire 7000 Series pneumatic casters and catalog page: ply ratings by size, variable flotation, foam-filled and gray non-marking tire options.
  • [S3] Hamilton Caster, R-70166-PR spec page: 16 in pneumatic, 1,220 lb at 3 mph, 90 psi max, rated -30 to 120°F, cushioning highest, abrasion and chemical resistance low.

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