4″ x 1-1/2″ Casters · High-Temp Oven Rack & Heat-Rated · 200 to 1,400 lb

This collection holds Hamilton 4 in x 1-1/2 in Casters with metal, polyurethane and phenolic wheels, built for heavy equipment, dies, molds, and plant carts that move very heavy loads. Casters in this collection range from 200 to 9,000 lb per caster. Wheels in this category range from 3-1/8 up to 4 inches in diameter with 1 to 4-1/2 in tread widths. The collection includes swivel, rigid, and brake models. Kingpinless swivels hold up better under shock and repeat loads. Flanged and V groove track wheels ride on rail or angle iron track for straight line travel. Metal wheels roll with low effort and handle debris and heat. They are loud and can mark finished floors. Polyurethane (poly or urethane) treads are quiet, floor safe, and resist water and many chemicals. Choose swivel casters when the cart must turn in place and rigid casters for straight travel. Forged steel aisle: forged steel casters. Wheel hub: replacement wheels.

Shop by wheel material

7 types

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

4″ x 1-1/2″ Casters: buying guide

4 x 1-1/2 in casters and wheels in polyurethane, epoxy resin and cast iron, 4 in wheels, rated 200 to 1,400 lb per caster.

Diameter 4 inTread 1-1/2 inPlate 4 x 4-1/2 in (most)200 to 1,400 lb per caster

4 x 1-1/2 in casters and wheels by tread

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Polyurethane	Steel and Cast iron	4 in	400 to 675 lb	-5°F to 160°F	quiet, floor-friendly and long wearing
Epoxy resin		4 in	200 to 300 lb	-20°F to 475°F	oven racks
Cast iron		4 in	320 to 600 lb	-30°F to 320°F	heat, chips and heavy loads on rough floors
Polyolefin		4 in	400 to 500 lb	-20°F to 200°F	wet and chemical areas, light to medium loads
Phenolic		4 in	400 to 600 lb	Up to 250°F	hard and easy rolling on smooth, dry floors
Steel		4 in	450 to 1,400 lb	-40°F to 320°F	heavy loads and track
Nylon		4 in	300 to 700 lb	-70°F to 550°F	low rolling effort on smooth floors, handles wet areas

Ratings are for single casters of 4 x 1-1/2 in casters and wheels, from product fields [S1].

Choosing 4 x 1-1/2 in casters and wheels

Load: plan on three casters carrying a four-caster cart [S2]; at 550 lb each, a common rating here, that is about 1,650 lb, and the 1,400 lb top rating covers about 4,200 lb.
Mount: most 4 x 1-1/2 in casters and wheels use a 4 x 4-1/2 in top plate; 3-1/8 x 4-1/8 in and 2-3/8 x 3-5/8 in plates are listed too; measure bolt hole centers on the old plate and compare.
Floor: on 4 x 1-1/2 in casters and wheels, polyurethane is kinder to tile and finished floors; cast iron, polyolefin, phenolic, steel and nylon roll easier under heavy loads on smooth concrete.
Rig: swivel and rigid 4 x 1-1/2 in casters and wheels are listed, with side lock brake options.
Heat: among 4 x 1-1/2 in casters and wheels, the highest listed range is -70°F to 550°F on nylon; check the temperature field on each listing before oven or hot-room use.

4 x 1-1/2 in casters and wheels questions

How much weight can 4 x 1-1/2 in casters and wheels carry?

Single 4 x 1-1/2 in casters and wheels are rated 200 to 1,400 lb; most fall between 300 and 550 lb.

What top plate do 4 x 1-1/2 in casters and wheels use?

Most 4 x 1-1/2 in casters and wheels use 4 x 4-1/2 in. Others listed: 3-1/8 x 4-1/8 in and 2-3/8 x 3-5/8 in.

What wheel material is most common on 4 x 1-1/2 in casters and wheels?

Polyurethane leads on 4 x 1-1/2 in casters and wheels, rated 400 to 675 lb per caster. Epoxy resin is next at 200 to 300 lb.

Are replacement wheels sold for 4 x 1-1/2 in casters and wheels?

Yes. Wheel-only listings for 4 x 1-1/2 in casters and wheels are here, sized 4 in; match the bore and hub length to your axle.

How long do 4 x 1-1/2 in casters and wheels take to ship?

Lead time on 4 x 1-1/2 in casters and wheels depends on brand and model: Hamilton builds many of its models here to order, typically 4 to 6 weeks, and Hamilton models stocked for Pronto Ship go out faster.

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.
[S3] Hamilton Caster catalog, PRONTO star marks for stocked models (hamiltoncaster.com/catalog.pdf), checked October 20, 2026.

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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