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.
Upgrade your mobility solutions with the Durastar 4" x 2" Thermoplastic Rubber Donut Wheel. Designed for superior performance, this wheel combines a quiet, non-marking tread with a robust 300-pound load capacity, making it ideal for a wide variety of industrial, commercial, and medical applications.
Crafted with high-quality thermoplastic rubber, this donut-style wheel offers enhanced shock absorption and vibration resistance, ensuring smooth and safe transport across different floor surfaces. The 1-3/16" plain bore allows for flexible mounting options, making it easy to integrate into your existing equipment or new designs.
Whether you are outfitting a utility cart, medical equipment, or mobile workstations, the Durastar 4" x 2" TPR Donut Wheel provides lasting reliability, ergonomic benefits, and top-tier floor protection to meet the demands of your environment.
Experience the difference in quality and performance with Durastar’s Thermoplastic Rubber Donut Wheel. Invest in durability, smoother operation, and greater user comfort today.
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.
The Durastar 4" x 2" Thermoplastic Rubber Donut Wheel is engineered for superior performance, reliability, and user comfort. Designed with a durable thermoplastic rubber (TPR) material, this wheel ensures a smooth, non-marking experience across various surfaces, making it a trusted choice for industrial, commercial, and healthcare applications.
Featuring a 4" diameter and a 2" tread width, this donut-style wheel provides enhanced floor protection, reduced noise, and exceptional shock absorption. Its 300 lbs load capacity ensures that it can withstand the demands of heavy-duty environments, while the 1-3/16" plain bore offers versatility for a wide range of mounting requirements.
Designed to excel in multiple environments, the Durastar TPR Donut Wheel is ideal for carts, dollies, utility carts, medical equipment, and mobile workstations. Its non-marking tread and quiet operation make it perfect for sensitive areas like hospitals, schools, laboratories, and warehouses where floor care and noise reduction are critical.
Ergonomically crafted for ease of movement, the Durastar 4" x 2" wheel minimizes push and pull forces, reducing operator fatigue and enhancing overall efficiency. The superior shock-absorbing qualities further protect transported goods and ensure a smooth ride, even over uneven or rough surfaces.
With a commitment to delivering quality, innovation, and long-lasting performance, Durastar wheels stand out as a top choice for businesses seeking durable, efficient, and cost-effective mobility solutions. Invest in the Durastar 4" x 2" Thermoplastic Rubber Donut Wheel to enhance your operational efficiency and protect your flooring investments today.
This 4" x 2" TPR Donut Industrial Replacement Wheel – 300 lb is rated to 300 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 Gray Rubber wheel. Rubber absorbs shock and protects floors, and runs quietly, which suits noise-sensitive and light-to-medium duty use.
4" diameter x 2" 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).
$17.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 4" |
| Wheel Tread Width | 2" |
| Load & Performance | |
| Wheel Capacity | 300 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Gray Rubber |
| Wheel Core Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
4" x 2" Thermo Rubber Rigid Caster – 300 lb | 4" x 4-1/2" Top Plate | CasterHQ
4" x 2" · 300 lbs
$26
4" x 2" Rubber on Cast Iron Industrial Replacement Wheel – 300 lb | CasterHQ
4" x 2" · 300 lbs
$20
4" x 2" Gray Thermo Rubber Polyolefin Industrial Wheel – 350 lb | CasterHQ
4" x 2" · 350 lbs
$14
View all 4′ x 2′ 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 | |
|---|---|---|---|---|---|---|
| 200 lbsLighter duty | 4" × 2"Gray Rubber | Rigid | 5-5/8" | $39.00 | View → | |
| 250 lbsLighter duty | 4" × 2"Gray Rubber | Swivel | 5-5/8" | $40.00 | View → | |
| 300 lbs | 4" × 2"Gray Rubber | — | — | $17.00 | Viewing | |
| 300 lbsSame capacity | 4" × 2"Gray Rubber | Rigid | 5-5/8" | $26.00 | View → | |
| 300 lbsSame capacity | 4" × 2"Rubber | — | — | $20.00 | View → |





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