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" Phenolic Swivel Threaded Stem Caster is a heavy-duty mobility solution engineered for performance and longevity. With a robust phenolic wheel, this caster is built to handle heavy loads up to 350 pounds while withstanding heat, moisture, oils, and harsh chemicals.
Designed for effortless 360-degree swivel rotation, this caster ensures smooth movement in tight spaces—making it an ideal choice for maintenance carts, warehouse equipment, and utility fixtures that require agile mobility. Its threaded stem installation is compatible with a variety of mounting styles, providing dependable integration into new or existing equipment.
Available stem sizes include 1/2-13 x 1", 1/2-13 x 1-1/2", and 1/2-13 x 2-9/16", allowing you to choose the perfect fit for your specific setup. Durastar’s proven design meets industry standards for quality and safety, giving you confidence in both everyday use and more demanding applications.
Upgrade your equipment with the Durastar 3-1/2" phenolic swivel caster—a dependable choice for environments where strength, temperature resistance, and maneuverability are essential. Choose your preferred threaded stem and streamline your workflow today.
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.
Experience dependable mobility with the Durastar 3-1/2" x 1-1/4" Phenolic Swivel Threaded Stem Caster, a high-performance solution engineered for strength, safety, and reliability. Whether you're upgrading carts, fixtures, or industrial equipment, this caster offers exceptional versatility and long-term value. With its heavy-duty phenolic construction and a load capacity of 350 pounds, it performs exceptionally in rigorous environments.
The phenolic wheel is crafted for durability and resilience. Its non-marking surface resists flat spots and performs smoothly under heavy loads. Designed to endure exposure to oil, water, grease, and chemicals, it’s ideal for industrial, institutional, and commercial settings. The wheel also provides resistance to extreme temperatures, making it suitable for both hot and cold conditions.
This model features a full 360° swivel mechanism, delivering responsive and fluid directional changes. Its smooth swivel action reduces friction and effort, enhancing operator control and minimizing workplace strain—an essential feature for environments that demand frequent movement and navigation in confined spaces.
For easy installation, the caster is available in three common threaded stem sizes:
Durastar casters are trusted by professionals for their proven performance, engineered durability, and user-friendly designs. Manufactured to meet industry standards and backed by a reputation for quality, this caster is a smart investment for businesses that value efficiency, safety, and long-lasting reliability.
Upgrade your equipment today with the Durastar 3-1/2" phenolic swivel threaded stem caster—the perfect combination of industrial toughness, smooth mobility, and customizable mounting options.
This 3-1/2" x 1-1/4" Phenolic Swivel Caster – 350 lb is rated to 350 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 Phenolic wheel with a 1-1/4" tread width. Phenolic carries high loads on smooth, hard floors and tolerates heat, but transmits more shock than an elastomer tread.
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 Up to 250°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 Phenolic wheel performs best on smooth, hard industrial floors. 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 | 350 lbs |
| Temp Range | Up to 250°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Phenolic |
| Frame Material | Zinc Plated Steel |
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