Medical Casters

This collection holds Medical Casters with polyurethane, nylon and phenolic wheels, built for shop carts, equipment, and material handling carts that move heavier loads. Casters in this collection range from 500 to 1,250 lb per caster. Wheels in this category range from 4 up to 8 inches in diameter with 2 to 4-1/2 in tread widths. The collection includes swivel, rigid, and brake models. Polyurethane (poly or urethane) treads are quiet, floor safe, and resist water and many chemicals. Nylon rolls easily, resists water and many chemicals, and is hard, so it is loud on rough floors. Phenolic rolls easily on smooth floors and handles dry heat, oil, and grease, but it is not made for water or washdown. It suits warehouse carts, toolboxes, and tool carts, and it is loud on rough floors. 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 type

5 types

Wheel = wheel diameter · capacity is per caster.

Colson medical casters by tread

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Nylon		4, 5, 6 and 8 in	800 to 1,250 lb	-40°F to 600°F	low rolling effort on smooth floors, handles wet areas
Rubber	Polyolefin	4, 5, 6 and 8 in	325 to 1,200 lb	-40°F to 600°F	cushioned and quiet on finished floors
Polyurethane	Polyolefin	4, 5, 6 and 8 in	500 to 1,250 lb	-40°F to 180°F	quiet, floor-friendly and long wearing
High-temp phenolic	Phenolic	4, 5, 6 and 8 in	800 to 1,200 lb	Up to 350°F	oven and hot-room carts
Phenolic		4, 5, 6 and 8 in	800 to 1,200 lb	-40°F to 600°F	hard and easy rolling on smooth, dry floors
Polyolefin		4, 5, 6 and 8 in	500 to 900 lb	-40°F to 600°F	wet and chemical areas, light to medium loads
Stainless steel		5 in	650 lb	-40°F to 600°F	washdown and corrosive areas

Ratings are for single casters of Colson medical casters, from product fields [S1].

Wheel sizes

Wheel	Treads	Rated
4 x 2 in	nylon, polyurethane and rubber	300 to 1,250 lb
5 x 2 in	nylon, polyurethane and rubber	325 to 1,250 lb
5 x 4-1/2 in	stainless steel and polyolefin	650 lb
6 x 2 in	nylon, rubber and polyurethane	410 to 1,250 lb
6 x 4-1/2 in	polyurethane and rubber	1,100 to 1,250 lb
8 x 2 in	nylon, rubber and polyurethane	500 to 1,250 lb

Choosing Colson medical casters

Load: plan on three casters carrying a four-caster cart [S2]; at 1,200 lb each, a common rating here, that is about 3,600 lb, and the 1,250 lb top rating covers about 3,750 lb.
Mount: most Colson medical casters use a 4 x 4-1/2 in top plate; match the bolt holes on your frame to the plate before ordering.
Floor: on Colson medical casters, rubber and polyurethane are kinder to tile and finished floors; nylon, high-temp phenolic, phenolic, polyolefin and stainless steel roll easier under heavy loads on smooth concrete.
Rig: swivel and rigid Colson medical casters are listed, with total lock brake, top lock brake and side lock brake options.
Heat: among Colson medical casters, the highest listed range is -40°F to 600°F on nylon; check the temperature field on each listing before oven or hot-room use.

Related to Colson medical casters: Colson casters and Colson medical casters w/ phenolic wheels.

Colson medical casters questions

How much weight can Colson medical casters carry?

Single Colson medical casters are rated 325 to 1,250 lb; most fall between 650 and 1,200 lb.

What top plate do Colson medical casters use?

Most Colson medical casters use 4 x 4-1/2 in.

What wheel material is most common on Colson medical casters?

Nylon leads on Colson medical casters, rated 800 to 1,250 lb per caster. Among Colson medical casters, rubber is next at 325 to 1,200 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"

View All • 21 Plate Sizes

Plate Casters

Stem Casters

Stainless Casters

Ergonomic Casters

Leveling Casters