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 40 Series Rigid Caster with 6" x 2" donut thermoplastic rubber wheel is designed for superior performance and durability. Featuring a robust donut thermoplastic rubber wheel, this caster is ideal for applications requiring a 500 lb load capacity. Whether in industrial, medical, or medium-duty environments, this caster offers smooth movement and reliable performance.
Built with a 4" x 4-1/2" plate mount, the caster provides exceptional stability, making it the perfect solution for carts, machinery, and equipment requiring dependable mobility. The thermoplastic rubber construction ensures shock absorption, protecting your floors from damage while enhancing the caster's durability.
Enhance the mobility and functionality of your equipment with the 40 Series 6" x 2" rigid caster. Engineered for durability and efficiency, this caster provides long-lasting performance for your demanding 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 Medium Heavy Duty 34 Series 6" x 2" Donut Thermoplastic Rubber Rigid Caster is engineered for robust performance in a wide variety of industrial and heavy-duty applications. Offering a superior load-bearing capacity of up to 500 lbs, this caster is designed to meet the needs of warehouses, factories, and material handling equipment. Whether you're moving heavy loads or maneuvering in tight spaces, this caster provides optimal functionality, durability, and smooth movement.
Constructed with high-quality thermoplastic rubber, the donut-shaped wheels provide excellent shock absorption, ensuring smoother rides and protecting both your equipment and flooring. The durable material makes this caster resistant to wear and tear, even under constant, heavy use.
The Durastar caster is not just built for heavy-duty applications; it’s designed for versatility. Its 4" x 4-1/2" top plate ensures easy installation across a wide range of industrial setups, providing added stability and security to the attached equipment. The 500 lb capacity means this caster can handle even the most demanding loads, making it ideal for industrial carts, shelving units, or hospital equipment.
Designed with ergonomics in mind, the Durastar caster helps reduce strain on workers by providing easy-to-maneuver equipment that moves smoothly over various surfaces. The thermoplastic rubber wheels ensure a quiet and comfortable ride, making it ideal for environments where noise reduction is important.
From warehouses to factories and material handling carts, the Durastar 34 Series caster excels in a variety of industrial settings. It is particularly effective in environments where high mobility, durability, and load-bearing capacity are essential. Whether used for transportation equipment, storage carts, or hospital trolleys, its ability to handle significant weight and offer a smooth ride makes it an indispensable part of your equipment fleet.
The Durastar caster features a simple installation process thanks to its standardized top plate design, allowing for quick integration into your equipment. The low-maintenance design means fewer replacements and less downtime, ensuring your operations run smoothly without interruptions. With minimal upkeep required, you can focus on the tasks at hand, knowing that your mobility solutions are built to last.
Durastar stands out for its commitment to quality and reliability. The 34 Series caster is engineered for tough environments and engineered with attention to detail to ensure it meets the highest standards of durability and performance. The combination of high load capacity, smooth movement, and ease of installation makes it the perfect choice for a variety of industrial applications.
Experience the reliability and performance of the Durastar Medium Heavy Duty 34 Series caster. Upgrade your mobility solutions with a product designed to deliver superior functionality, long-lasting durability, and ease of use. Perfect for any heavy-duty or industrial application, Durastar casters are the key to improving your operational efficiency.
This 6" x 2" Donut Thermoplastic Rubber Rigid Caster – 500 lb is rated to 500 lbs per caster. Size a set by dividing the total load by the number of casters, and for uneven floors assume 3 of 4 casters carry the load. Keep continuous-use loads within about 75-80% of the rating.
This caster runs a Gray Rubber wheel with a 2" tread width. Rubber absorbs shock and protects floors, and runs quietly, which suits noise-sensitive and light-to-medium duty use.
This caster uses a top-plate mount with a 4" x 4-1/2" plate and a 2-5/8" x 3-3/8" slotted to 3" x 3" bolt pattern. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
This is a Rigid caster. Rigid casters track straight for directional stability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
Rated for -20°F to 180°F. Operating outside the rated range can reduce wheel life and load capacity, so match it to your environment (wash-down, freezer, oven-adjacent, etc.).
The Gray Rubber wheel performs best on rough, uneven, or outdoor surfaces such as asphalt, gravel, and cracked concrete. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 7-1/2". Account for it when checking equipment clearance, dock height, and ergonomic working height.
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).
$37.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 6" |
| Wheel Tread Width | 2" |
| Overall Height | 7-1/2" |
| Plate Size | 4" x 4-1/2" |
| Bolt Hole Pattern | 2-5/8" x 3-3/8" slotted to 3" x 3" |
| Mount Style | Plate |
| Rig Type | Rigid |
| Load & Performance | |
| Wheel Capacity | 500 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Gray Rubber |
| Wheel Core Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
6" x 2" Gray Thermo Rubber Polyolefin Industrial Wheel – 500 lb | CasterHQ
6" x 2" · 500 lbs
$25
6" x 2" Gray Thermo Rubber Polyolefin Industrial Wheel – 500 lb | CasterHQ
6" x 2" · 500 lbs
$25
6" x 2" Thermo Rubber Rigid Caster – 500 lb | 4" x 4-1/2" Plate | CasterHQ
6" x 2" · 500 lbs · Direct fit
$29
View all 6′ 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 | |
|---|---|---|---|---|---|---|
| 350 lbsLighter duty | 6" × 2"Gray Rubber | Rigid | 7-1/2" | $46.00 | View → | |
| 350 lbsLighter duty | 6" × 2"Gray Rubber | Swivel | 7-1/2" | $53.00 | View → | |
| 500 lbs | 6" × 2"Gray Rubber | Rigid | 7-1/2" | $37.00 | Viewing | |
| 500 lbsSame capacity | 6" × 2"Gray Rubber | — | — | $25.00 | View → | |
| 500 lbsSame capacity | 6" × 2"Gray Rubber | — | — | $25.00 | View → |





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