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 Durastar 3-1/2" x 1-1/4" Polyurethane on Polyolefin Swivel Threaded Stem Caster is engineered for reliability, versatility, and smooth mobility. Designed to meet the demands of industrial and commercial users, this caster features a high-performance polyurethane tread bonded to a rugged polyolefin core—delivering a quiet, floor-protective ride.
Choose from three common threaded stem sizes—1/2-13 x 1", 1/2-13 x 1-1/2", or 1/2-13 x 2-9/16"—to ensure compatibility with a variety of mounting needs. Its swivel design provides excellent directional control, making it ideal for equipment that requires frequent repositioning or navigation in confined work areas.
With a maximum load capacity of 275 pounds, this caster is well-suited for utility carts, shop fixtures, medical equipment, and warehouse solutions. The durable construction and ergonomic performance make it a dependable choice for daily operational use.
Upgrade your caster systems with the Durastar 3-1/2" Polyurethane Swivel Threaded Stem Caster and experience smoother operation, increased stability, and long-term performance—all backed by trusted engineering. Select your preferred stem length and get rolling with confidence.
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 3-1/2" x 1-1/4" Polyurethane on Polyolefin Swivel Threaded Stem Caster is designed to deliver reliable mobility performance across a wide range of environments. Whether you're upgrading shop equipment, medical carts, or warehouse systems, this caster offers the durability and flexibility necessary for continuous daily use.
At the heart of its design is a high-quality polyurethane tread securely bonded to a strong polyolefin core, combining floor protection with strength and resilience. This composition allows for smooth, quiet movement on various surfaces while preventing scuffing or marking—ideal for commercial and indoor settings.
With a load capacity of up to 275 lbs per caster, it is built to handle light to medium-duty tasks efficiently. The swivel design enables 360-degree rotation, allowing for improved maneuverability, especially in tight or crowded areas. This makes it an excellent choice for workspaces where precision and mobility are critical.
To accommodate varying equipment and installation needs, this caster is available in three threaded stem sizes: 1/2-13 x 1", 1/2-13 x 1-1/2", and 1/2-13 x 2-9/16". This variety provides flexibility and compatibility with different mounting configurations, making the product a go-to solution for manufacturers, engineers, and maintenance teams.
Engineered by Durastar, a trusted name in mobility solutions, this caster reflects a strong commitment to quality, performance, and end-user satisfaction. The maintenance-free design ensures long service life with minimal upkeep, while the ergonomic features help reduce push force and operator fatigue—boosting both productivity and safety.
Whether you're operating in a facility that prioritizes cleanliness, safety, or efficiency, the Durastar 3-1/2" swivel caster is a smart investment in performance, adaptability, and value. Its robust construction and thoughtful design make it an essential component for carts, dollies, fixtures, and mobile equipment used in demanding environments.
This 3-1/2" x 1-1/4" Polyurethane Swivel Caster – 275 lb is rated to 275 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 Polyurethane wheel with a 1-1/4" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
This caster uses a Threaded Stem mount. Stem casters press or thread into a socket - verify the stem diameter and length match your existing setup before ordering.
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 Polyurethane wheel performs best on smooth to semi-smooth floors including sealed concrete, tile, and epoxy. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 4-5/8". 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).
$13.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 3-1/2" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 4-5/8" |
| Mount Style | Threaded Stem |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 275 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Wheel Core Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
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