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98.7% On-Time Ship Rate Across All Orders
200,000+ Orders Fulfilled for OEM & MRO Teams Nationwide
100+ Years of Combined Caster Industry Experience
Automatic Bulk Pricing | OEM & MRO Volume Discounts Applied at Checkout
Up to 350 lbs · Light Duty Applications
Up to 7,200 lbs · Industrial Duty
Up to 17,500 lbs · Heavy Industrial
Up to 40,000 lbs · Extreme Load Applications
Up to 40,000 lbs · Increased Maneuverability
Up to 3,100 lbs · Industrial Shock Absorbing
Up to 3,200 lbs - Corrosion Resistant
Stainless Steel
Up to 8,400 lbs.
Explore All Specialty Caster Applications
From Everyday Use to Niche Solutions
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.
Most in-stock items ship same or next business day. Shipping rates shown at checkout.
PRODUCT CODE: 91-S-1230-PU-04
The Durastar Xtreme Heavy Duty 91 Series Swivel Caster is engineered to withstand the most demanding environments. Featuring a robust 12" x 3" polyurethane on steel wheel, this caster provides exceptional durability and a smooth roll, even under heavy loads. With a 3500 lb capacity, it's designed to meet the needs of industrial, warehouse, and manufacturing settings.
Built for reliability, this caster offers superior maneuverability, thanks to its swivel design that allows easy navigation around tight corners and obstacles. The durable polyurethane wheel ensures a smooth, floor-friendly ride, making it an ideal choice for environments that require both strength and mobility.
The 4-1/2" x 6-1/4" top plate is compatible with a variety of applications, offering easy integration with most equipment. Whether you're using it for heavy machinery, carts, or racks, the Durastar Xtreme Heavy Duty Caster ensures your operations run smoothly and efficiently. Trust in its high-performance design to provide long-lasting value in your toughest tasks.
Upgrade your mobility solutions with the Durastar Xtreme Heavy Duty 91 Series Swivel Caster. Designed for maximum performance and durability, it's the perfect choice for your most demanding projects.
Transparent pricing
All pricing and quantity discounts are applied automatically. No promo codes required and no post-checkout price changes.
Upfront shipping costs
Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.
Business-friendly ordering
We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.
Real support from product specialists
Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.
Trusted by industrial and commercial customers
CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.
When will my order ship?
In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.
Will shipping cost more at checkout?
Shipping is not free on most orders. Your final shipping cost is shown before payment.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.
Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.
Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.
The Durastar Xtreme Heavy Duty 91 Series swivel caster is engineered to provide robust mobility solutions for heavy-duty applications. Its 3500 lb capacity and durable construction make it ideal for use in industrial, warehouse, and heavy machinery settings, where reliability and performance are paramount. This caster is perfect for ensuring smooth and efficient movement in environments where performance is key.
Durable Construction: Crafted from polyurethane on steel, the Durastar Xtreme caster combines the best of both materials for exceptional durability and superior floor protection. The polyurethane wheels are known for their ability to withstand heavy loads while maintaining smooth, floor-friendly operation. This combination ensures that the caster will perform reliably under extreme conditions, providing long-lasting service without sacrificing maneuverability.
Designed for Superior Maneuverability: The swivel design of the caster allows it to pivot 360 degrees, making it easier to navigate tight corners, narrow aisles, and around obstacles. This flexibility ensures that you can maintain efficient workflows in high-traffic areas without compromising on safety or performance. The 12" x 3" wheel size is also optimized for stability and strength, allowing you to handle a variety of heavy-duty tasks with ease.
Floor Protection and Smooth Operation: The high-quality polyurethane material ensures smooth, quiet rolling even under heavy loads. This makes the caster a great choice for environments where noise and floor damage need to be minimized, such as hospitals, warehouses, or retail spaces. The durable wheels help protect floors from scuffs, scratches, and wear, making them an ideal choice for both indoor and outdoor environments.
Versatile Applications: The Durastar Xtreme Heavy Duty 91 Series swivel caster is designed to be versatile enough for a wide range of applications. Whether you're working with carts, machinery, racks, or industrial equipment, this caster provides the strength and maneuverability needed to keep your operations moving smoothly. With a top plate size of 4-1/2" x 6-1/4", it is compatible with a wide variety of equipment, offering excellent adaptability in various industrial settings.
Minimal Maintenance and Long-Term Durability: The robust design of the Durastar Xtreme caster means minimal maintenance requirements. Built for long-term durability, this caster will continue to provide reliable performance over time, reducing downtime and maintenance costs. With its solid construction and efficient design, the Durastar Xtreme caster ensures that your operations remain efficient and cost-effective, even under challenging conditions.
Reliable Brand and Trusted Performance: As a product from Durastar, a well-known name in the caster and wheel industry, the Xtreme Heavy Duty 91 Series caster stands out for its exceptional performance and dependability. Durastar has built a reputation for providing high-quality products designed to meet the needs of tough environments, ensuring that each caster is crafted with precision and care.
Ideal For:
Upgrade your mobility solutions with the Durastar Xtreme Heavy Duty 91 Series swivel caster. With its superior construction, 3500 lb load capacity, and unparalleled performance, it’s the ideal solution for your toughest tasks. Trust Durastar for long-lasting durability and efficiency.
$390.00
| Wheel Diameter | 12" |
| Wheel Tread Width | 3" |
| Overall Height | 13-1/2" |
| Wheel Capacity | 3500 lbs |
| Temp Range | -20°F to 180°F |
| Wheel Material | Polyurethane |
| Wheel Core Material | Steel |
| Frame Material | Zinc Plated Steel |
| Bolt Hole Pattern | 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4" |
| Mount Style | Plate |
| Plate Size | 4-1/2" x 6-1/4" |
| Rig Type | Swivel |
| Brake Type | No Brake |
Designed for engineers, manufacturers, and material handling professionals