Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
All measurements indicate the wheel diameter by the tread width.
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.
The Durastar 4" x 1-1/4" DURATOUGH Polyurethane on Polyolefin Wheel is engineered for dependable performance in demanding environments. Featuring advanced DURATOUGH polyurethane tread, this wheel delivers a perfect balance of floor protection, noise reduction, and load-bearing strength.
Ideal for carts, mobile racks, and general material handling, the high-tech polyurethane tread offers exceptional resistance to abrasion, oil, and harsh chemicals. The polyolefin core adds durability without adding weight, making it a reliable choice for both commercial and industrial use.
The 7/8-inch plain bore design ensures compatibility with a range of axle setups, while the 325 lbs capacity per wheel allows for confident operation in light- to medium-duty load scenarios. This wheel is built to withstand wear and tear while minimizing damage to sensitive flooring surfaces.
Choose Durastar's DURATOUGH polyurethane wheels for durable, quiet, and floor-safe performance. Optimize your mobility systems with a wheel engineered for long-term use and professional-grade results.
Order processing
In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.
Shipping method
Smaller orders ship parcel (UPS/FedEx Ground). Heavy or bulk quantities consolidate to LTL freight. The method and final cost are shown before payment, so there are no post-checkout adjustments.
Payment & procurement terms
New to CasterHQ? Open an account or request terms and send your resale or tax-exemption certificate before ordering so it is applied at checkout.
Volume pricing & quotes
Quantity discounts apply automatically — no codes needed. For large, recurring, or custom requirements, request a bulk quote and our team will confirm pricing, lead time, and total landed freight upfront.
Returns & warranty
Stock items carry a 30-day return policy in unused, resalable condition. Made-to-order and custom items are non-returnable once production starts. All products carry the manufacturer's warranty against defects.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas and freight deliveries may take longer.
For pallet freight, scheduled releases, or blanket purchase orders, contact our team and we'll confirm total landed cost before you commit. Direct line: 844-439-4335.
Experience industrial-grade performance with the Durastar 4" x 1-1/4" DURATOUGH Hi-Tech Polyurethane Wheel, expertly designed to provide durability, smooth rolling, and floor protection for your most critical applications. Whether you're equipping carts, racks, or dollies, this wheel offers a proven solution for maintaining operational efficiency and safety.
This wheel features a precision-molded DURATOUGH polyurethane tread, securely bonded to a rugged polyolefin core. The combination of materials ensures long-lasting use, outstanding chemical resistance, and protection against everyday abrasions and impacts. With a 325 lb load capacity, it easily meets the demands of light to medium-duty material handling tasks.
The 7/8-inch plain bore offers easy axle compatibility, making installation efficient across a range of systems. Its compact 4" diameter and 1-1/4" width allow it to glide smoothly in tight areas, delivering ergonomic and quiet movement across sensitive flooring without marking or damaging surfaces.
From warehouses and distribution centers to retail and institutional settings, the Durastar DURATOUGH wheel is a trusted choice for facility managers and operations professionals. Its maintenance-free design and resistance to oils, greases, and solvents make it suitable for clean environments, high-traffic zones, and material transport systems requiring consistent mobility and safety.
Every Durastar wheel is backed by expert engineering and manufacturing standards that prioritize quality, safety, and longevity. Choosing DURATOUGH means investing in a wheel that enhances workflow, protects your flooring, and reduces downtime. Whether you're upgrading your equipment or specifying components for a new build, this wheel delivers performance you can count on.
Enhance your mobility systems with the Durastar DURATOUGH polyurethane wheel—a reliable, cost-effective solution for daily operations. Built for long-term performance and engineered for the toughest demands, it's the wheel your workspace deserves.
This 4" x 1-1/4" Polyurethane Polyolefin Wheel – 325 lb is rated to 325 lbs per wheel. Divide the total load across the number of wheels in your rig and keep working loads within about 75-80% of the rating for continuous use.
This is a Polyurethane wheel. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
4" diameter x 1-1/4" tread width. Verify your axle diameter and hub/bore length against your existing wheel before ordering.
Yes. Most wheels can be paired with a swivel or rigid rig to build a complete caster. Tell us your mount and load and we will spec the rig - request it on our bulk pricing page.
Rated for -20°F to 180°F. Operating outside the rated range can shorten wheel life and reduce capacity.
We accept purchase orders and offer Net 30 on approved accounts, ACH, and all major cards, plus tax-exempt ordering with a resale or exemption certificate. Volume discounts apply automatically; request a bulk quote for large or recurring orders. Stock items carry a 30-day return policy in unused condition (made-to-order items are non-returnable once production starts).
$14.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 4" |
| Wheel Tread Width | 1-1/4" |
| Load & Performance | |
| Wheel Capacity | 325 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Wheel Core Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
4" Polyurethane Swivel Caster – 325 lb | 1/2" x 1.5" Threaded Stem | CasterHQ
4" x 1-1/4" · 325 lbs
$26
4" x 1-1/4" Maroon Polyolefin Polyurethane Wheel – 325 lb | CasterHQ
4" x 1-1/4" · 325 lbs
$13
4" x 1.25" Polyurethane Rigid Caster – 325 lb | Top Plate 2.5" x 3.625" | CasterHQ
4" x 1-1/4" · 325 lbs
$11
View all 4′ x 1-1/4′ casters & wheels →
Your selection is highlighted. Every option shares its wheel size and mount; a Direct fit tag means the same mounting plate — a drop-in replacement. Step up or down in load rating, all in-stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 300 lbsLighter duty | 4" × 1-1/4" | Swivel | 5-1/16" | $23.00 | View → | |
| 300 lbsLighter duty | 4" × 1-1/4"Gray Rubber | Swivel | 5-1/8" | $16.00 | View → | |
| 325 lbs | 4" × 1-1/4"Polyurethane | — | — | $14.00 | Viewing | |
| 325 lbsSame capacity | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $26.00 | View → | |
| 325 lbsSame capacity | 4" × 1-1/4"Polyurethane | — | — | $13.00 | View → |





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