5-1/4″ x 7-1/4″ Plate Casters

This collection holds 5-1/4 in x 7-1/4 in Plate Casters with semi steel, phenolic and polyurethane wheels, built for heavy equipment, dies, molds, and plant carts that move very heavy loads. Casters in this collection range from 750 to 5,400 lb per caster. Wheels in this category range from 1 up to 18 inches in diameter with 3 to 5.7 in tread widths. The collection includes swivel, rigid, and brake models. Kingpinless swivels hold up better under shock and repeat loads. Dual wheel casters split the load over two wheels and swivel with less effort under heavy loads. Flanged and V groove track wheels ride on rail or angle iron track for straight line travel. Semi steel (gray iron) rolls with low effort and shrugs off debris. It is loud and can mark finished floors. Choose swivel casters when the cart must turn in place and rigid casters for straight travel. Semi steel aisle: semi steel casters. Wheel hub: replacement wheels.

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

5-1/4″ x 7-1/4″ Plate Casters: buying guide

5-1/4 x 7-1/4 in plate casters in cast iron, phenolic and polyurethane, 4 to 16 in wheels, rated 785 to 5,400 lb per caster.

Diameter 4 to 16 inTread 3, 5-5/16 and 5-11/16 inPlate 5-1/4 x 7-1/4 in785 to 5,400 lb per caster

5-1/4 x 7-1/4 in plate casters by tread

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Cast iron		4, 6, 8, 10 and 12 in	2,000 to 4,100 lb	Up to 800°F	heat, chips and heavy loads on rough floors
Phenolic		6, 7-1/4, 8, 10 and 12 in	2,000 to 3,500 lb	Up to 250°F	hard and easy rolling on smooth, dry floors
Polyurethane	Cast iron	6, 8 and 10 in	2,000 to 4,200 lb	-40°F to 180°F	quiet, floor-friendly and long wearing
Rubber	Cast iron	6 to 16 in	785 to 1,200 lb	-40°F to 180°F	cushioned and quiet on finished floors
Nylon		6, 8 and 10 in	2,000 to 5,400 lb	-30°F to 220°F	low rolling effort on smooth floors, handles wet areas
Steel		7-1/4, 8 and 10 in	3,500 to 5,400 lb	Up to 800°F	heavy loads and track
Pneumatic		7-1/4, 14 and 16 in	785 to 1,000 lb		rough ground, outdoors, fragile loads

Ratings are for single casters of 5-1/4 x 7-1/4 in plate casters, from product fields [S1].

Wheel sizes

Wheel	Treads	Rated
6 x 3 in	phenolic, cast iron and polyurethane	750 to 5,400 lb
7-1/4 x 3 in	phenolic and steel	3,500 lb
7-1/4 x 5-5/16 in	rubber and pneumatic	785 lb
8 x 3 in	cast iron, phenolic and polyurethane	900 to 5,400 lb
10 x 3 in	cast iron, phenolic and steel	1,000 to 5,400 lb
12 x 3 in	cast iron, phenolic and rubber	1,200 to 4,100 lb
16 x 4-13/16 in	pneumatic and rubber	1,000 lb
18 x 5-11/16 in	rubber	1,170 lb

Choosing 5-1/4 x 7-1/4 in plate casters

Load: plan on three casters carrying a four-caster cart [S2]; at 3,500 lb each, a common rating here, that is about 10,500 lb, and the 5,400 lb top rating covers about 16,200 lb.
Mount: most 5-1/4 x 7-1/4 in plate casters use a 5-1/4 x 7-1/4 in top plate; 5 x 7-1/4 in and 4-1/2 x 6-1/4 in plates are listed too; check the bolt spacing on your frame against the plate size.
Floor: on 5-1/4 x 7-1/4 in plate casters, polyurethane, rubber and pneumatic are kinder to tile and finished floors; cast iron, phenolic, nylon and steel roll easier under heavy loads on smooth concrete.
Rig: swivel and rigid 5-1/4 x 7-1/4 in plate casters are listed, with face contact brake and side lock brake options.
Heat: among 5-1/4 x 7-1/4 in plate casters, the highest listed range is up to 800°F on cast iron; check the temperature field on each listing before oven or hot-room use.

Related to 5-1/4 x 7-1/4 in plate casters: 2-3/8 x 3-5/8 plate casters, 4 x 4-1/2 plate casters (4x4.5) and 3-1/8 x 4-1/8 plate casters.

5-1/4 x 7-1/4 in plate casters questions

How much weight can 5-1/4 x 7-1/4 in plate casters carry?

Single 5-1/4 x 7-1/4 in plate casters are rated 785 to 5,400 lb; most fall between 2,000 and 3,500 lb.

What top plate do 5-1/4 x 7-1/4 in plate casters use?

Most 5-1/4 x 7-1/4 in plate casters use 5-1/4 x 7-1/4 in. Other plates on 5-1/4 x 7-1/4 in plate casters: 5 x 7-1/4 in and 4-1/2 x 6-1/4 in.

What wheel material is most common on 5-1/4 x 7-1/4 in plate casters?

Cast iron leads on 5-1/4 x 7-1/4 in plate casters, rated 2,000 to 4,100 lb per caster. Among 5-1/4 x 7-1/4 in plate casters, phenolic is next at 2,000 to 3,500 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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