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 solution with the Durastar 4" x 2" Glass-Filled Nylon Wheel, a high-performance wheel designed to meet the demands of industrial operations. With a robust construction and a generous 800-pound load capacity, this wheel delivers both strength and versatility across a variety of floor types.
Made from premium glass-filled nylon, this wheel resists moisture, chemicals, and impact while providing smooth, quiet rolling. The 2-inch wide tread offers enhanced weight distribution and stability, while the 1-3/16" plain bore ensures easy compatibility with standard axles or fittings.
Engineered with durability in mind, this non-marking wheel is suitable for applications that require reliability under pressure—whether in warehouses, distribution centers, or assembly lines. Its resilient design makes it an excellent choice for carts, dollies, and industrial transport systems where precision and dependability matter.
Choose the Durastar 4" x 2" Glass-Filled Nylon Wheel for a durable, high-capacity solution that exceeds expectations in industrial and commercial applications.
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" Glass-Filled Nylon Wheel is built for high-performance industrial applications that demand reliability, durability, and smooth mobility. With a robust 800 lbs load capacity and a standard 1-3/16" plain bore, this wheel is a dependable solution for carts, dollies, and material handling systems across warehouses, factories, and commercial operations.
Constructed from high-strength glass-filled nylon, this wheel is engineered to withstand rigorous use in both dry and moist settings. Its material composition offers exceptional resistance to chemicals, impact, and moisture, ensuring longevity even in harsh operating conditions. The non-marking tread helps protect sensitive flooring surfaces while offering smooth, controlled rolling action.
Featuring a 4-inch diameter and a wide 2-inch tread, the wheel distributes weight evenly to enhance stability and reduce stress on flooring. Its low rolling resistance allows for easier pushing and pulling, increasing productivity in repetitive-use environments. The standard 1-3/16" plain bore ensures universal compatibility with most axle systems and allows for easy integration into existing setups.
The Durastar wheel is an excellent fit for material handling carts, industrial dollies, warehouse transport systems, and other high-demand applications. Whether you're outfitting new equipment or upgrading your current wheels, this model offers a trusted combination of durability, precision, and long-term value.
Engineered to meet the needs of professionals who depend on dependable mobility solutions, the Durastar 4" x 2" Glass-Filled Nylon Wheel delivers outstanding performance, floor protection, and long-lasting value. Invest in wheels designed to perform—and built to last.
This 4" x 2" Glass-Filled Nylon Industrial Replacement Wheel – 800 lb is rated to 800 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 Nylon wheel. Nylon resists chemicals and moisture and carries high loads, which suits washdown and wet environments.
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 Up 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).
Application guidance for load margin, wheel materials, and swivel construction. Confirm ratings against your duty cycle, floor, and temperature before final spec.
Treat published load capacity as a continuous working limit, not a one-time peak. Divide total loaded cart weight (product + rack + fixtures) by the number of casters that share the load, then size so that working load per caster stays at or below about 75% of the rated capacity (a common ~25% margin). On four-wheel oven racks, uneven floors and thermal growth can shift load to two or three casters; if your process routinely parks on imperfect floors, engineer for three-caster support rather than perfect four-way share. Confirm ratings at your process temperature — heat softens many wheel compounds and can lower usable capacity versus room-temperature catalog numbers.
Bypass standard polyurethane when continuous or cyclic wheel temperatures exceed the urethane compound’s published service range (often well below typical bake / washdown-after-heat zones). Spec glass-filled nylon or phenolic (or other high-temp tread systems on the PDP) when racks enter ovens, proofers, or wash tunnels where tread softening, bond failure, or flat spots would appear with PU. Match the wheel to the hottest surface the tread sees, including residual heat after exit, and verify chemical exposure (cleaners, fats, steam) against the material notes on this product. When in doubt, ask for the temperature and duty cycle — we will confirm whether this SKU or a high-temp alternate is the right call.
A traditional kingpin clamps the swivel assembly through a single axial fastener. Repeated side thrust from towing, tugger lines, or AGV path corrections loads that pin and the raceway faces in ways ordinary cart steering does not. Over time that shows up as elongated kingpin holes, brinelled races, or loose swivels. Kingpinless (or forged integrated) raceways distribute thrust through a continuous race path instead of relying on that central pin — better suited when side loads are planned into the duty cycle. Oven-rack and high-temp lines still need the correct wheel material first; upgrade the swivel construction when towing or powered side loads are part of the application, not only when heat is.
$51.00
| Identification | |
|---|---|
| Part Number / SKU | 420-MA-84 |
| Core | |
| Load Capacity | 800 lbs |
| Wheel Diameter | 4" |
| Wheel Width | 2" |
| Wheel | |
| Wheel Material | Nylon |
| Construction | |
| Frame / Finish | Zinc Plated Steel |
| Temperature Range | Up to 180°F |
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 within the same duty class, all in stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 700 lbsLighter duty | 4" × 2"Polyurethane | — | 5-5/8" | $63.00 | View → | |
| 700 lbsLighter duty | 4" × 2"Cast Iron | Rigid | 5-5/8" | $48.00 | View → | |
| 800 lbs | 4" × 2"Nylon | — | — | $51.00 | Viewing | |
| 800 lbsSame capacity | 4" × 2"Polyurethane | — | — | $26.00 | View → | |
| 800 lbsSame capacity | 4" × 2"Polyurethane | — | — | $14.00 | View → |





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