Dual Wheel Casters · Three Capacity Tiers · 3-1/4" to 22" · 1,000 to 40,000 lb

Diameter: 3-1/4 to 22 inTread: 2, 3 and 4 inPlate: 14 x 14 in (most)Capacity: 1,000 to 40,000 lb per caster

Dual wheel casters with polyurethane, nylon, phenolic and steel wheels. Polyurethane on aluminum and steel cores is the most common tread here, rated 1,000 to 35,000 lb per caster in 3-1/4 to 22 in. Ratings by tread: nylon 3,000 to 40,000 lb, phenolic 1,100 to 1,900 lb and steel 22,400 to 36,800 lb. Brands: Hamilton.

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3 types

Wheel = wheel diameter · capacity is per caster.

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Dual Wheel Casters: buying guide

Dual wheel casters in polyurethane, nylon and phenolic, 3-1/4 to 22 in wheels, rated 1,000 to 40,000 lb per caster.

Up to 2,000 lbLight-Medium Heavy4″ - 8″ wheels on the 4″ x 4-1/2″ plate. Polyurethane on aluminum, polyurethane. Up to 3,000 lbHeavy Industrial3-1/4″ - 8″ wheels on the 4-1/2″ x 6-1/2″ plate. Hamilton Nylast, Duralast. Up to 7,000 lbSuper Heavy Industrial6″ - 12″ wheels on the 6-1/8″ x 7-1/2″ plate. Aircraft GSE, heaviest dock and transport.

Dual wheel casters by tread

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Polyurethane	Aluminum and Steel	3-1/4 to 22 in	1,000 to 35,000 lb	-50°F to 200°F	quiet, floor-friendly and long wearing
Nylon		4 to 18 in	3,000 to 40,000 lb	-30°F to 220°F	low rolling effort on smooth floors, handles wet areas
Phenolic		3-1/4, 4, 5 and 6 in	1,100 to 1,900 lb	Up to 250°F	hard and easy rolling on smooth, dry floors
Steel		8, 10 and 12 in	22,400 to 36,800 lb	-40°F to 320°F	heavy loads and track
Cast iron		6 and 12 in	3,200 to 16,000 lb	-5°F to 160°F	heat, chips and heavy loads on rough floors

Ratings are for single casters of dual wheel casters, from product fields [S1].

Wheel sizes

Wheel	Treads	Rated
4 x 2 in	polyurethane, nylon and phenolic	900 to 3,000 lb
6 x 2 in	polyurethane, phenolic and nylon	1,500 to 3,000 lb
6 x 3 in	polyurethane, nylon and cast iron	3,200 to 8,600 lb
8 x 2 in	polyurethane and nylon	2,000 to 3,000 lb
8 x 3 in	polyurethane, nylon and steel	4,400 to 22,400 lb
10 x 3 in	polyurethane and nylon	5,400 to 13,100 lb
10 x 4 in	polyurethane, steel and nylon	9,000 to 28,800 lb
12 x 3 in	polyurethane and cast iron	6,300 to 16,000 lb

Choosing dual wheel casters

Load: plan on three casters carrying a four-caster cart [S2]; at 10,000 lb each, a common rating here, that is about 30,000 lb, and the 40,000 lb top rating covers about 120,000 lb.
Mount: most dual wheel casters use a 14 x 14 in top plate; 8-1/2 x 8-1/2 in and 6-1/4 x 6-1/2 in plates are listed too; match the bolt holes on your frame to the plate before ordering.
Floor: on dual wheel casters, polyurethane is kinder to tile and finished floors; nylon, phenolic, steel and cast iron roll easier under heavy loads on smooth concrete.
Rig: rigid and swivel dual wheel casters are listed.
Heat: among dual wheel casters, the highest listed range is -40°F to 320°F on steel; check the temperature field on each listing before oven or hot-room use.

Dual wheel casters questions

How much weight can dual wheel casters carry?

Single dual wheel casters are rated 1,000 to 40,000 lb; most fall between 2,700 and 10,000 lb.

What top plate do dual wheel casters use?

Most dual wheel casters use 14 x 14 in. Others listed: 8-1/2 x 8-1/2 in and 6-1/4 x 6-1/2 in.

What wheel material is most common on dual wheel casters?

Polyurethane leads on dual wheel casters, rated 1,000 to 35,000 lb per caster. Nylon is next at 3,000 to 40,000 lb.

Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com

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] Preferred Equipment casters and wheels quick guide PDF (prefeq.com): load sizing on one less caster, wheel types and floor notes.

BHP: 1-3/4″ × 2-7/8″, slotted to 3″

BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″

BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)

BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"

(3″ Wide Casters), Industry-Standard

BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"

BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"

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