3" x 1-1/4" Casters & Wheels · 150 to 350 lb · Medical, Lab, Toolbox

This collection holds 3 X 1 1 4 Casters Wheels with polyurethane, rubber and phenolic wheels, built for shop carts, equipment, and material handling carts that move heavier loads. Casters in this collection range from 55 to 1,600 lb per caster. Wheels in this category range from 2 up to 3-1/2 inches in diameter with 1 to 4-1/8 in tread widths. The collection includes swivel, rigid, and brake models. 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. Rubber wheels are quiet, cushion the load, and protect floors. Phenolic rolls easily on smooth floors and handles dry heat, oil, and grease, but it is not made for water or washdown. Choose swivel casters when the cart must turn in place and rigid casters for straight travel. Polyurethane aisle: polyurethane casters. Wheel hub: replacement wheels.

Shop by wheel material

8 types

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

3" x 1-1/4" Casters & Wheels: buying guide

3 x 1-1/4 in casters and wheels in polyurethane, rubber and polyolefin, 3 in wheels, rated 150 to 350 lb per caster.

Diameter 3 inTread 1-1/4 inPlate 2-3/8 x 3-5/8 in (most)150 to 350 lb per caster

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

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Polyurethane	Polyolefin and Aluminum	3 in	200 to 300 lb	-45°F to 180°F	quiet, floor-friendly and long wearing
Rubber	Polyolefin	3 in	150 to 300 lb	-45°F to 180°F	cushioned and quiet on finished floors
Polyolefin		3 in	150 to 300 lb	-45°F to 180°F	wet and chemical areas, light to medium loads
Phenolic		3 in	200 to 350 lb	-50°F to 250°F	hard and easy rolling on smooth, dry floors
TPR	Polyolefin	3 in	150 to 180 lb	-30°F to 140°F	non-marking, quiet on finished floors
Nylon		3 in	200 to 350 lb	-45°F to 200°F	low rolling effort on smooth floors, handles wet areas
Semi-steel		3 in	300 to 350 lb	-45°F to 600°F	rough floors, heat and heavy loads

Ratings are for single casters of 3 x 1-1/4 in casters and wheels, from product fields [S1].

Choosing 3 x 1-1/4 in casters and wheels

Load: divide the loaded weight by three for a four-caster cart [S2]. A 300 lb caster from this page then suits about 900 lb, and the strongest at 350 lb about 1,050 lb.
Mount: most 3 x 1-1/4 in casters and wheels use a 2-3/8 x 3-5/8 in top plate; 3-1/8 x 4-1/8 in and 2-1/2 x 3-5/8 in plates are listed too; measure bolt hole centers on the old plate and compare.
Floor: on 3 x 1-1/4 in casters and wheels, polyurethane, rubber and TPR are kinder to tile and finished floors; polyolefin, phenolic, nylon and semi-steel roll easier under heavy loads on smooth concrete.
Rig: swivel and rigid 3 x 1-1/4 in casters and wheels are listed, with total lock brake, side lock brake and top lock brake options.
Heat: among 3 x 1-1/4 in casters and wheels, the highest listed range is -45°F to 600°F on semi-steel; check the temperature field on each listing before oven or hot-room use.

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

How much weight can 3 x 1-1/4 in casters and wheels carry?

Single 3 x 1-1/4 in casters and wheels are rated 150 to 350 lb; most fall between 200 and 300 lb.

What top plate do 3 x 1-1/4 in casters and wheels use?

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

What wheel material is most common on 3 x 1-1/4 in casters and wheels?

Polyurethane leads on 3 x 1-1/4 in casters and wheels, rated 200 to 300 lb per caster. Rubber is next at 150 to 300 lb.

Are replacement wheels sold for 3 x 1-1/4 in casters and wheels?

Yes. Wheel-only listings for 3 x 1-1/4 in casters and wheels are here, sized 3 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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