Specialty Casters
Gate Casters
BBQ Pit & Smoker Casters
Keyed Drive Wheels
Drywall Cart Casters
Skid Wheels & Casters for RVs
Leveling Casters
Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels
Low Profile Casters
Cart Wheels & Casters
Toolbox Caster Sets
Bakery & High Temperature Casters
Kitchen Prep Table Caster Sets
Wire Shelving Casters
Silent Glide Casters
The Durastar S30 Series 4" x 2" Donut Thermoplastic Rubber Rigid Caster combines strength, reliability, and flexibility. Engineered to handle medium-heavy duty loads of up to 300 lbs, this caster provides excellent mobility for industrial equipment, storage carts, and material handling solutions. The durable thermoplastic rubber wheel ensures superior traction, protects your floors, and minimizes noise during operation.
Designed for ease of use, the rigid feature allows for effortless durability in tight spaces and around corners. With a robust 4" x 4-1/2" stainless steel top plate, this caster delivers exceptional durability in demanding environments, from warehouses to factories. The stainless steel construction ensures resistance to corrosion, making it suitable for both dry and damp conditions.
Whether you're looking to enhance your equipment's mobility or improve efficiency in your workspace, the Durastar S30 Series caster offers the perfect solution. The caster's ergonomic design helps reduce operator fatigue, making it an ideal choice for environments where continuous use and mobility are crucial.
Take advantage of Durastar’s reliability and durability. Shop the S30 Series 4" x 2" Donut Thermoplastic Rubber Rigid Caster now to improve the functionality of your equipment and enhance operational efficiency.
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 S30 Series 4" x 2" Donut Thermoplastic Rubber Rigid Caster offers unmatched durability, smooth maneuverability, and high load capacity, making it an essential mobility solution for industrial and commercial applications. Whether you need casters for material handling equipment, storage carts, or other heavy-duty machinery, this product delivers superior performance, longevity, and ease of use.
The Durastar Medium Heavy Duty S30 Series caster is engineered for high performance in industrial settings. Unlike many other casters, its thermoplastic rubber wheels offer superior wear resistance, making it a cost-effective option for long-term use. The corrosion-resistant stainless steel top plate provides added value, ensuring that the caster remains functional and visually appealing for years.
This caster is designed for efficiency, enabling quick and easy movement of heavy loads without compromising on stability or operator comfort. Its ergonomic design improves handling and reduces strain, making it the ideal choice for businesses seeking to optimize their operations and reduce downtime caused by maintenance or equipment failure.
The Durastar S30 Series caster is versatile and suitable for a variety of applications. It is perfect for use in:
Invest in the Durastar Medium Heavy Duty S30 Series 4" x 2" Donut Thermoplastic Rubber Rigid Caster for a reliable, durable, and ergonomic solution that enhances the mobility of your equipment. With its corrosion-resistant stainless steel top plate, high load capacity, and noise-reducing thermoplastic rubber wheel, it provides exceptional value and long-lasting performance. Upgrade your mobility solutions today and experience superior reliability in your industrial and commercial applications.
This 4" x 2" Donut Thermoplastic Rubber Rigid Stainless Caster – 300 lb is rated to 300 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. 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 5-5/8". 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).
$49.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 4" |
| Wheel Tread Width | 2" |
| Overall Height | 5-5/8" |
| Mount Style | Plate |
| Rig Type | Rigid |
| Load & Performance | |
| Wheel Capacity | 300 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 |
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" Gray Thermo Rubber Polyolefin Industrial Wheel – 350 lb | CasterHQ
4" x 2" · 350 lbs
$14
4" Thermo Rubber Swivel All Terrain Caster – Off Road | CasterHQ
4" x 2" · 250 lbs
$40
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 | Rigid | 5-5/8" | $49.00 | Viewing | |
| 300 lbsSame capacity | 4" × 2"Gray Rubber | Rigid | 5-5/8" | $26.00 | View → | |
| 350 lbsHeavier duty | 4" × 2"Gray Rubber | — | — | $14.00 | View → |
