The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.
W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.
Plate dimensions shown are overall mounting plate size. When replacing existing casters, select the closest plate size and verify bolt-hole compatibility. BHP = Bolt Hole Pattern, shown under each plate.
Polyurethane Casters — Industrial Grade, All Types
CasterHQ industrial polyurethane casters — the most versatile commercial caster category. 2,303 SKUs covering polyurethane on iron, aluminum, polyolefin, blue solid polyurethane, red poly on iron, and TPR formulations. 2-inch through 12-inch wheels, plate and stem mounts, swivel and rigid configurations. 80 to 5,000 lb per caster. Non-marking, quiet rolling, decades of service life on hard floors. Stocked at our Mansfield, TX facility.
2,303 SKUs in Stock80 to 5,000 lb CapacityNon-Marking, Quiet, Long LifePlate & Stem Mounts99% Same or Next-Day Ship
Every polyurethane caster formulation we stock, with capacity range, durometer, and best application. The 2,303-SKU polyurethane inventory covers everything from light office casters (80 lb) up to extra heavy industrial (5,000 lb).
Poly Type
Hub Material
Capacity
Best Application
Red Poly on Iron
Cast Iron
500 to 5,000 lb
Heaviest industrial, manufacturing, mfg fixtures
Gray Poly on Iron
Cast Iron
400 to 4,000 lb
Standard heavy industrial, warehouse
Maroon Poly on Polyolefin (DuraTough)
Polyolefin Core
300 to 1,200 lb
Industrial w/ lighter weight than iron hub
Poly on Aluminum
Aluminum
300 to 1,200 lb
Medium industrial, weight-sensitive
Blue Solid Polyurethane
Solid (no hub)
200 to 600 lb
Premium retail, medical, AV
Poly on Polyolefin
Polyolefin Plastic
200 to 800 lb
Light to medium retail, fixtures
TPR/TPU Soft Poly
Plastic Core
150 to 500 lb
Hospital, food prep, soft floors
How to Choose a Polyurethane Caster
1. Hub Material Determines Maximum Capacity
Iron hub handles the heaviest loads (up to 5,000 lb) but is heaviest. Aluminum is lighter at 300-1,200 lb. Polyolefin or solid poly caps around 800 lb. Match the hub material to your maximum expected load.
2. Tread Color Indicates Formulation
Red poly = heaviest, hardest. Gray = standard industrial. Blue solid = non-marking premium. Maroon = abuse-resistant DuraTough. Natural/Black = lower-cost general use.
3. Plate Mount vs Stem Mount
Plate mount bolts to a flat surface (most common on industrial equipment). Stem mount screws into an existing threaded socket (offices, retail fixtures, furniture). Match the mount type to what your equipment already has.
4. Swivel, Rigid, or Total Lock
Swivel for maneuverability. Rigid for tracking and straight-line stability. Total lock when the equipment must hold position. Most 4-caster sets use 4 swivels or 2 swivel + 2 rigid for combo maneuverability and tracking.
CasterHQ stocks 2,303 polyurethane caster configurations at our Mansfield, TX facility — the largest dedicated polyurethane caster inventory in the U.S. Every major formulation, hub material, and mount type. 99 percent of orders ship same or next business day.
Frequently Asked Questions
Why polyurethane casters?
Polyurethane is the most versatile industrial wheel material: non-marking on hard floors, quiet rolling, 80 to 5,000 lb capacity range, decade-plus service life. Default choice for retail, warehouse, manufacturing, hospital, and AV equipment.
What's the difference between poly on iron and poly on aluminum?
Iron hubs handle the heaviest loads (up to 5,000 lb per caster) but weigh 2-3x more. Aluminum hubs are lighter (300-1,200 lb capacity) and reduce overall caster weight. Same polyurethane tread on both.
Are polyurethane casters non-marking?
Most are non-marking on tile, vinyl, and polished concrete. Blue solid polyurethane and natural color are the safest non-marking. Some red and dark gray can mark light-colored floors.
How much weight can a polyurethane caster hold?
Per-caster: 80 lb (small office) to 5,000 lb (large red poly on iron). 4-caster set covers 320 lb to 20,000 lb.
What's DuraTough polyurethane?
CasterHQ's brand of maroon polyurethane on polyolefin wheels — engineered for industrial abuse resistance. The polyolefin core handles shock loads without cracking; the poly tread handles wear. 300-1,200 lb per caster.
Plate mount or stem mount?
Plate mount bolts to a flat surface using 4 bolts — most industrial equipment. Stem mount screws into an existing threaded socket — offices, retail fixtures, furniture. Match the mount type to your equipment's existing mounting surface.
Are these for indoor or outdoor use?
Polyurethane casters are designed for indoor industrial use. Polyurethane handles weather, but the metal hub may rust outdoors over time. For dedicated outdoor use, pneumatic or flat-free wheels with corrosion-resistant frames are better.
Do they have brakes?
Many models include side-lock or total-lock brakes built in. For brake-equipped polyurethane casters, filter to "with brake" or "total locking" variants. Standard casters are free-swivel.
Can polyurethane casters be repaired?
The polyurethane tread itself can sometimes be re-bonded if damaged but isn't typically field-serviceable. Replace the wheel when tread is worn, gouged, or chunked. We stock matching replacement wheels for all our casters.
How fast do they ship?
99 percent of polyurethane caster orders ship same or next business day from our Mansfield, TX facility via FedEx Ground. Bulk fleet orders over 100 casters ship freight. Cutoff 2pm Central.
Why Buyers Choose CasterHQ for Polyurethane Casters
Largest U.S. Polyurethane Inventory99% Ship Same or Next Business Day30-Day Return Policy50,000+ Commercial BuyersBBB A+ Rated Since 2008Built for Industrial, Mfg & Commercial Use
