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.

Elevate your equipment with the Hamilton 4" Aqualite Polyolefin Wheel. Renowned for its 300 lbs. load capacity, this wheel is designed for durability and smooth operation.
Opt for the Hamilton 4" Aqualite Wheel for unmatched quality and performance. Benefit from our expert support available weekdays 8 am - 5 pm to ensure you select the perfect caster for your needs.
Have questions? Our team of Caster Experts is available weekdays from 8 am to 5 pm to provide you with professional advice tailored to your project needs.
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.
Lock in low prices on the durable and versatile Hamilton Aqualite 4" Polyolefin Wheel. Designed for reliable performance with a 300 lbs. capacity at 3 mph, it's your go-to for moderate speed and weight requirements.
The Hamilton Aqualite wheel features a solid center for enhanced strength and stability, making it an ideal choice for a variety of applications. Its Polyolefin core material is resistant to impacts, water, oils, and most chemicals, ensuring performance in diverse environments.
This Hamilton 4" x 1 3/8" Polyolefin 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 Polyolefin wheel. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
4". 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 200°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).
$12.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Wheel Diameter | 4" |
| Load & Performance | |
| Wheel Capacity | 300 lbs |
| Temp Range | -20°F to 200°F |
| Materials & Finish | |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
Hamilton W-420-V-1/2 4" x 2" Metal V-Grooved Wheel – 800 lb | CasterHQ
4" · 800 lbs
$59
View all hamilton replacement 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 lbs | 4"Polyolefin | — | — | $12.00 | Viewing | |
| 800 lbsHeavier duty | 4"Cast Iron | — | — | $59.00 | View → |
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