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 Hamilton W-420-UYZ-3/4 wheel is a paradigm of robust design and functionality. With a 4" diameter and 2" width, coupled with a 2 3/16" hub length, it's ideal for a wide range of industrial and commercial applications. Crafted from solid polyurethane (75D), this wheel offers a unique blend of durability and floor protection, supporting heavy loads while maintaining smooth operation.
This wheel excels in various environments, from warehouses and factories to retail spaces. The solid polyurethane construction ensures minimal wear and tear, even in continuous use, making it a cost-effective choice for businesses seeking reliable material handling solutions.
The W-420-UYZ-3/4 wheel features a 3/4" Delrin bearing, enhancing its load-bearing capacity and ensuring smoother movements. Its resistance to chemicals, oils, and greases adds to its versatility, making it a top choice for various industrial applications.
Upgrade your equipment with the Hamilton Unilast Solid Polyurethane Wheel W-420-UYZ-3/4. Its balance of strength, durability, and operational efficiency makes it an essential component for any high-performance industrial or commercial setup.
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 Hamilton Unilast Polyurethane Wheel, model W-420-UYZ-3/4, stands as a testament to industrial innovation and efficiency. This wheel is not just a component; it's a reliable partner in diverse industrial environments. Designed for durability and smooth operation, it meets the rigorous demands of both commercial and industrial applications.
Crafted with a solid polyurethane material rated at 75D hardness, this wheel promises long-term durability and resistance to wear and tear. Its 4-inch diameter and 2-inch width are meticulously designed to balance load distribution, ensuring smooth mobility. The 3/4-inch Delrin bearing is a core feature that enhances its load-bearing capacity, making it an excellent choice for heavy-duty tasks.
The W-420-UYZ-3/4 wheel is not limited to a single industry. Its robust construction makes it ideal for various settings, from manufacturing floors to retail warehouses. The wheel's chemical resistance further broadens its usability in environments where exposure to harsh substances is a norm.
Aligning with modern sustainability standards, this wheel is made from eco-friendly materials. Its low maintenance design, resistant to dirt and easy to clean, ensures that it remains functional and presentable over extended periods, reducing the need for frequent replacements and thus contributing to a sustainable operational model.
In conclusion, the Hamilton Unilast Polyurethane Wheel W-420-UYZ-3/4 is more than just a wheel; it's a solution designed to enhance efficiency, sustainability, and reliability in any industrial setting. Invest in this wheel to experience a seamless blend of performance and durability.
This is a Solid Polyurethane wheel. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
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).
$35.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Wheel Diameter | 4" |
| Wheel Tread Width | 2" |
| Load & Performance | |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Solid Polyurethane |
| Frame Material | Zinc Plated Steel |
4" ATX Solid Thermo Rubber Rigid Flat Free Caster | CasterHQ
4" x 2" · 200 lbs
$39
4" Thermo Rubber Swivel All Terrain Caster – Off Road | CasterHQ
4" x 2" · 250 lbs
$40
4" x 2" Thermo Rubber Rigid Caster – 300 lb | 4" x 4-1/2" Top Plate | CasterHQ
4" x 2" · 300 lbs
$26
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 | |
|---|---|---|---|---|---|---|
| — | 4" × 2"Solid Polyurethane | — | — | $35.00 | Viewing | |
| 200 lbsHeavier duty | 4" × 2"Gray Rubber | Rigid | 5-5/8" | $39.00 | View → | |
| 250 lbsHeavier duty | 4" × 2"Gray Rubber | Swivel | 5-5/8" | $40.00 | View → | |
| 300 lbsHeavier duty | 4" × 2"Gray Rubber | Rigid | 5-5/8" | $26.00 | View → | |
| 300 lbsHeavier duty | 4" × 2"Rubber | — | — | $20.00 | View → |





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