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.
Experience reliable mobility with the Durastar 4" x 1-1/4" Polyolefin Stainless Swivel Caster, designed for durability, precision, and performance. Its high-quality polyolefin wheel delivers exceptional resistance to chemicals, water, and common solvents while offering smooth and quiet rolling across various surfaces.
This caster's 360-degree swivel design ensures agile movement in tight spaces, making it a go-to choice for applications where flexibility and control are essential. With a generous load capacity of 300 pounds, it's well-suited for utility carts, retail fixtures, warehouse equipment, and more.
Choose from three versatile threaded stem sizes—1/2"-13 x 1", 1/2"-13 x 1-1/2", or 1/2"-13 x 2-9/16"—to match your mounting requirements with ease. Installation is quick and secure, ensuring a tight fit for long-lasting performance.
Upgrade your equipment with the Durastar 4" Polyolefin Stainless Swivel Caster—engineered for strength, versatility, and lasting value. Discover the dependable performance trusted by professionals across industries.
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.
Designed for strength, maneuverability, and chemical resistance, the Durastar 4" x 1-1/4" Stainless Swivel Threaded Stem Caster is a trusted solution for light to medium-duty mobility needs. Whether you're outfitting utility carts, workstations, retail displays, or warehouse equipment, this caster delivers the durability and smooth performance professionals expect.
The high-impact polyolefin wheel is engineered for long-lasting use, offering excellent resistance to water, chemicals, grease, and solvents. This non-marking material glides quietly across a variety of surfaces, making it ideal for sensitive flooring in commercial and industrial environments.
Equipped with a full 360-degree swivel, this caster allows for precise directional movement—even in tight or confined areas. It’s perfect for setups requiring frequent repositioning or high agility, such as worktables and mobile equipment stations.
To accommodate various installation needs, this model offers three threaded stem sizes: 1/2"-13 x 1", 1/2"-13 x 1-1/2", and 1/2"-13 x 2-9/16". Each option ensures a secure fit and simplified installation across a wide range of mounting platforms.
This caster supports up to 300 pounds, making it well-suited for everyday commercial and industrial use. It balances strength and portability, helping streamline mobility in environments like shipping rooms, retail spaces, and warehouses.
Whether you're upgrading a fleet of tool carts or retrofitting portable shelves, the Durastar swivel caster is your versatile, high-performance choice. Its reliable construction and ergonomic mobility help reduce operator fatigue and extend equipment life.
Choose the Durastar 4" x 1-1/4" Polyolefin Stainless Swivel Threaded Stem Caster for dependable performance, long-lasting value, and seamless installation. Trusted by professionals across industries, it’s engineered to deliver every time.
This 4" x 1-1/4" Polyolefin Swivel 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 Polyolefin 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 Polyolefin 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 5-1/8". 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).
$55.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Wheel Diameter | 4" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 5-1/8" |
| Mount Style | Threaded Stem |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 300 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
4" x 1.25" Polyurethane Swivel Caster – 300 lb | 1/2" x 1.5" Stem | CasterHQ
4" x 1-1/4" · 300 lbs
$23
4" x 1.5" Polyurethane Swivel Caster – 300 lb | 1/2" x 1.5" Stem | CasterHQ
4" x 1-1/4" · 300 lbs
$23
4" Polyurethane Swivel Caster – 300 lb | 1/2" x 1-1/2" Threaded Stem | CasterHQ
4" x 1-1/4" · 300 lbs
$23
View all 4′ x 1-1/4′ 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 | |
|---|---|---|---|---|---|---|
| 250 lbsLighter duty | 4" × 1-1/4"Gray Rubber | Swivel | 5-1/8" | $17.00 | View → | |
| 300 lbs | 4" × 1-1/4"Polyolefin | Swivel | 5-1/8" | $55.00 | Viewing | |
| 300 lbsSame capacity | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $23.00 | View → | |
| 300 lbsSame capacity | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $23.00 | View → | |
| 300 lbsSame capacity | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $23.00 | View → |





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