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The Durastar Xtreme Heavy Duty 91 Series 6" x 3" Rubber on Steel Swivel Caster is built to tackle the toughest tasks. Designed with industrial strength in mind, this caster boasts a robust 750 lb load capacity, making it perfect for heavy-duty applications. Its rubber on steel construction ensures both durability and smooth operation, even on rough surfaces.
The 4-1/2" x 6-1/4" top plate offers versatile mounting options for a wide range of equipment, providing excellent stability and support. Whether you're outfitting industrial machinery or creating mobile workstations, this caster ensures seamless movement and reliable performance.
Engineered for efficiency, the swivel design offers superior maneuverability, allowing you to navigate tight spaces with ease. Trust the Durastar Xtreme Heavy Duty 91 Series to deliver exceptional performance, whether in manufacturing, warehouses, or other demanding settings.
Enhance the mobility of your equipment with the Durastar Xtreme Heavy Duty 91 Series swivel caster. Experience superior load capacity, durability, and maneuverability for your toughest tasks.
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 Xtreme Heavy Duty 91 Series 6" x 3" Rubber on Steel Swivel Caster is engineered for performance in the most demanding industrial environments. Designed with a 750 lb load capacity, this heavy-duty caster provides the strength and durability needed for heavy equipment and machinery handling. The rubber on steel design offers a combination of smooth rolling action and exceptional resilience, making it ideal for use in warehouses, factories, and other high-traffic settings.
Thanks to its versatile 4-1/2" x 6-1/4" top plate, this caster can be easily mounted onto a wide range of equipment, providing flexibility for various applications. The swivel action enhances maneuverability, making it easier to navigate tight spaces and corners, while the rubber material absorbs shocks and reduces vibrations during use. Whether you need it for industrial machinery or mobile workstations, the Durastar Xtreme caster ensures optimal functionality and reliability.
The Durastar Xtreme Heavy Duty 91 Series Caster is versatile and can be used in a wide range of industrial and commercial applications, including:
When it comes to heavy-duty applications, Durastar Xtreme stands out as a trusted brand known for producing high-quality mobility solutions. With a commitment to excellence and durability, Durastar casters are designed to withstand the toughest environments while offering superior performance. The 91 Series offers reliability, ease of installation, and long-lasting functionality for any industrial or commercial need.
Whether you are upgrading your existing equipment or outfitting new machinery, the Durastar Xtreme Heavy Duty 91 Series Swivel Caster provides the perfect blend of strength, stability, and maneuverability, ensuring a smooth and efficient experience in your daily operations.
With Durastar Xtreme casters, you are investing in mobility solutions backed by a brand trusted by industry professionals. Our products are rigorously tested for performance and durability to meet the highest standards. We are committed to providing exceptional customer service and ensuring that your experience with our casters enhances your business operations.
This 6" x 3" Rubber on Steel Swivel Caster – 750 lb is rated to 750 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 Rubber wheel with a 3" 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 4-1/2" x 6-1/4" plate and a 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4" 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 Swivel caster. Swivel casters rotate 360 degrees for full maneuverability. 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 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).
$178.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 6" |
| Wheel Tread Width | 3" |
| Overall Height | 7-1/2" |
| Plate Size | 4-1/2" x 6-1/4" |
| Bolt Hole Pattern | 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4" |
| Mount Style | Plate |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 750 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Rubber |
| Frame Material | Zinc Plated Steel |
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View all 6′ x 3′ 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 | |
|---|---|---|---|---|---|---|
| 750 lbs | 6" × 3"Rubber | Swivel | 7-1/2" | $178.00 | Viewing | |
| 2000 lbsHeavier duty | 6" × 3"Polyurethane | Swivel | 8" | $131.00 | View → | |
| 2000 lbsHeavier duty | 6" × 3"Polyurethane | Rigid | 7-1/2" | $100.00 | View → | |
| 2000 lbsHeavier duty | 6" × 3"Polyurethane | Rigid | 7-1/2" | $185.00 | View → | |
| 2000 lbsHeavier duty | 6" × 3"Polyurethane | Swivel | 7-1/2" | $173.00 | View → |
