Casters 4,001-7,500 lb Per Caster · Extra Heavy Duty · Kingpinless

This collection holds 4 001 7 500 Lbs Each with polyurethane, metal and forged steel treads, made to replace worn wheels on carts, dollies, racks, and equipment. Wheels in this collection range from 1,100 to 34,000 lb per wheel. Wheels in this category range from 2-1/2 up to 36 inches in diameter with 1 to 6 in tread widths. Flanged and V groove track wheels ride on rail or angle iron track for straight line travel. Polyurethane (poly or urethane) treads are quiet, floor safe, and resist water and many chemicals. Metal wheels roll with low effort and handle debris and heat. They are loud and can mark finished floors. Forged steel wheels carry very heavy loads and handle impact, debris, and heat. They are loud and will mark finished floors. Match the bore, hub length, diameter, and tread width before you order. Order the axle and spacers if the old ones are worn. Polyurethane aisle: polyurethane casters. Caster hub: heavy duty casters.

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11 types

Rubber and polyurethane favor floor protection; phenolic and steel favor heavy capacity. Compare materials →

Caster Finder Find your caster in 3 steps Mount, size, capacity, narrowed to your exact spec in this collection.

Casters 4,001-7,500 lb Per Caster: buying guide

in polyurethane, steel and forged steel, 4 to 16 in wheels, rated 4,500 to 7,000 lb per caster.

Diameter 4 to 16 inTread 3, 4 and 5 inPlate 5-1/4 x 7-1/4 in (most)4,500 to 7,000 lb per caster

Casters rated 4,001 to 7,500 lb by tread

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Polyurethane	Cast iron and Steel	5 to 16 in	4,500 to 7,000 lb	-5°F to 160°F	quiet, floor-friendly and long wearing
Steel		4 to 16 in	4,500 to 6,500 lb	-40°F to 320°F	heavy loads and track
Forged steel	Steel	4 to 10 in	5,000 to 6,000 lb	-30°F to 320°F	very high loads and impact
Nylon		4, 6, 8 and 10 in	5,000 to 7,000 lb	-30°F to 220°F	low rolling effort on smooth floors, handles wet areas
Ductile iron	Steel	5, 6, 8, 10 and 12 in	4,800 to 6,000 lb	-45°F to 800°F	heavy loads with better impact strength than cast iron
Cast iron	Steel	8, 10, 15 and 16 in	4,500 to 7,000 lb	-30°F to 320°F	heat, chips and heavy loads on rough floors
Phenolic		6, 8, 12 and 16 in	5,000 to 6,000 lb	Up to 250°F	hard and easy rolling on smooth, dry floors

Ratings are for single casters of casters rated 4,001 to 7,500 lb, from product fields [S1].

Wheel sizes

Wheel	Treads	Rated
6 x 3 in	nylon, polyurethane and forged steel	4,400 to 7,100 lb
8 x 3 in	polyurethane, nylon and forged steel	4,400 to 7,000 lb
8 x 4 in	polyurethane, steel and forged steel	4,500 to 6,500 lb
10 x 3 in	polyurethane, forged steel and nylon	4,500 to 7,100 lb
10 x 4 in	polyurethane and forged steel	5,000 to 6,500 lb
10 x 5 in	polyurethane and rubber	4,400 to 6,500 lb
12 x 3 in	polyurethane, ductile iron and phenolic	4,400 to 7,000 lb
12 x 4 in	polyurethane and phenolic	4,800 to 7,000 lb

Choosing casters rated 4,001 to 7,500 lb

Load: plan on three casters carrying a four-caster cart [S2]; at 6,000 lb each, a common rating here, that is about 18,000 lb, and the 7,000 lb top rating covers about 21,000 lb.
Mount: most casters rated 4,001 to 7,500 lb use a 5-1/4 x 7-1/4 in top plate; 8-1/2 x 8-1/2 in and 6-1/2 x 7-1/2 in plates are listed too; measure bolt hole centers on the old plate and compare.
Floor: on casters rated 4,001 to 7,500 lb, polyurethane is kinder to tile and finished floors; steel, forged steel, nylon, ductile iron, cast iron and phenolic roll easier under heavy loads on smooth concrete.
Rig: swivel and rigid casters rated 4,001 to 7,500 lb are listed, with total lock brake, side lock brake and face contact brake options.
Heat: among casters rated 4,001 to 7,500 lb, the highest listed range is -45°F to 800°F on ductile iron; check the temperature field on each listing before oven or hot-room use.

Related to casters rated 4,001 to 7,500 lb: industrial casters.

Casters rated 4,001 to 7,500 lb questions

How much weight can casters rated 4,001 to 7,500 lb carry?

Single casters rated 4,001 to 7,500 lb are rated 4,500 to 7,000 lb; most fall between 5,000 and 6,000 lb.

What top plate do casters rated 4,001 to 7,500 lb use?

Most casters rated 4,001 to 7,500 lb use 5-1/4 x 7-1/4 in. Other plates on casters rated 4,001 to 7,500 lb: 8-1/2 x 8-1/2 in and 6-1/2 x 7-1/2 in.

What wheel material is most common on casters rated 4,001 to 7,500 lb?

Polyurethane leads on casters rated 4,001 to 7,500 lb, rated 4,500 to 7,000 lb per caster. Among casters rated 4,001 to 7,500 lb, steel is next at 4,500 to 6,500 lb.

Are replacement wheels sold for casters rated 4,001 to 7,500 lb?

Yes. Wheel-only listings for casters rated 4,001 to 7,500 lb are here, sized 4 to 20 in; check the axle diameter and hub length on the old wheel.

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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