Caster Catalog by Load Capacity & Mount Type · 2-1/2"–12" · 100–3,500 lb · Polyurethane & Rubber

Diameter: 2-1/2 to 12 inTread: 1-1/4, 2 and 3 inPlate: 4 x 4-1/2 in (most)Capacity: 100 to 3,500 lb per caster

Durastar casters in this catalog with polyurethane, rubber, nylon and polyolefin wheels. Polyurethane on polyolefin and steel cores is the main group here, rated 250 to 3,000 lb per caster in 2-1/2 to 12 in. Ratings by tread: rubber 100 to 1,100 lb, nylon 300 to 2,500 lb and polyolefin 100 to 1,200 lb. Brands: Durastar.

Shop by type

6 types

Wheel = wheel diameter · capacity is per caster.

Caster Catalog by Load Capacity & Mount Type: buying guide

Durastar casters in this catalog in polyurethane, rubber and nylon, 2-1/2 to 12 in wheels, rated 100 to 3,500 lb per caster.

Up to 145 lbLight DutyOffice, furniture, AV racks, retail fixtures, light service carts. Up to 400 lbLight-Medium DutyHospital carts, food service, prep stations, light shop carts. Up to 1,500 lbMedium-Heavy Duty Up to 2,500 lbHeavy DutyHeavy industrial transport, towlines, machinery dollies, dock work. Up to 6,000 lbXtreme Heavy DutyFoundry, aircraft GSE, military, super-heavy industrial. Sirius HD line. All capacitiesSpecialty Casters

Durastar casters in this catalog by tread

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Polyurethane	Polyolefin and Steel	2-1/2 to 12 in	250 to 3,000 lb	-45°F to 180°F	quiet, floor-friendly and long wearing
Rubber	Polyolefin and Nylon	2-1/2 to 12 in	100 to 1,100 lb	-45°F to 180°F	cushioned and quiet on finished floors
Nylon		3 to 10 in	300 to 2,500 lb	Up to 180°F	low rolling effort on smooth floors, handles wet areas
Polyolefin		2-1/2 to 8 in	100 to 1,200 lb	-45°F to 180°F	wet and chemical areas, light to medium loads
Phenolic		3 to 12 in	350 to 2,500 lb	Up to 250°F	hard and easy rolling on smooth, dry floors
Ductile iron	Steel	4 to 12 in	1,250 to 3,500 lb	-45°F to 800°F	heavy loads with better impact strength than cast iron
Semi-steel	Steel	3 to 12 in	350 to 3,000 lb	-45°F to 600°F	rough floors, heat and heavy loads

Ratings are for single casters of Durastar casters in this catalog, from product fields [S1].

Wheel sizes

Wheel	Treads	Rated
3 x 1-1/4 in	rubber, polyurethane and polyolefin	175 to 350 lb
4 x 1-1/4 in	rubber, polyurethane and phenolic	220 to 400 lb
4 x 2 in	polyurethane, rubber and nylon	300 to 1,500 lb
5 x 1-1/4 in	rubber, polyurethane and phenolic	250 to 400 lb
5 x 2 in	polyurethane, rubber and nylon	350 to 1,500 lb
6 x 2 in	polyurethane, rubber and nylon	250 to 2,000 lb
8 x 2 in	polyurethane, rubber and nylon	600 to 2,000 lb
8 x 3 in	polyurethane, ductile iron and rubber	250 to 6,000 lb

Choosing Durastar casters in this catalog

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 3,500 lb top rating covers about 10,500 lb.
Mount: most Durastar casters in this catalog use a 4 x 4-1/2 in top plate; 4-1/2 x 6-1/4 in and 5-1/4 x 7-1/4 in plates are listed too; measure bolt hole centers on the old plate and compare.
Floor: on Durastar casters in this catalog, polyurethane and rubber are kinder to tile and finished floors; nylon, polyolefin, phenolic, ductile iron and semi-steel roll easier under heavy loads on smooth concrete.
Rig: swivel and rigid Durastar casters in this catalog are listed.
Heat: among Durastar casters in this catalog, 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.

Durastar casters in this catalog questions

How much weight can Durastar casters in this catalog carry?

Single Durastar casters in this catalog are rated 100 to 3,500 lb; most fall between 325 and 1,200 lb.

What top plate do Durastar casters in this catalog use?

Most Durastar casters in this catalog use 4 x 4-1/2 in. Others listed: 4-1/2 x 6-1/4 in and 5-1/4 x 7-1/4 in.

What wheel material is most common on Durastar casters in this catalog?

Polyurethane leads on Durastar casters in this catalog, rated 250 to 3,000 lb per caster. Rubber is next at 100 to 1,100 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

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