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The Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter (MTG55) offers outstanding versatility and durability for a wide range of applications. Designed with a polyolefin wheel and Delrin bearing, this caster provides exceptional performance under heavy loads and high stress.
The expanding adapter is specifically designed to fit square tubing with inside diameters ranging from 1-3/8" to 1-7/16", making it ideal for use in many different systems and environments. This caster is perfect for environments that require smooth, reliable, and long-lasting mobility solutions, such as in industrial warehouses, manufacturing settings, and more.
The high-quality polyolefin wheel ensures that your equipment rolls smoothly across most surfaces, while the Delrin bearing offers a smooth, frictionless movement that reduces wear and tear. The expanding adapter makes installation quick and hassle-free, ensuring a secure and reliable fit.
Colson Casters' commitment to quality and reliability ensures that this caster will exceed expectations in even the toughest working conditions. With superior durability and performance, the Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter is the solution you can trust to enhance your mobility systems.
Upgrade your mobility solutions with Colson Casters' advanced designs. Perfect for industrial and heavy-duty applications, this caster ensures smooth and efficient movement, enhancing productivity and operational efficiency.
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 Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter is an exceptional mobility solution designed for industrial, commercial, and warehouse environments. Built for heavy-duty applications, it provides smooth and efficient movement, even in demanding settings. This caster combines durable materials, easy installation, and long-lasting performance, ensuring your equipment and machinery are mobile with minimal downtime.
Whether you're outfitting equipment in a warehouse, factory, hospital, or any other high-demand setting, the Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster excels in providing smooth mobility. Its expanding adapter makes it adaptable to a wide range of square tubing applications, ensuring it can meet the diverse needs of various industries.
This caster is ideal for handling heavy loads, making it perfect for machinery that requires reliable and continuous movement. The ergonomic design reduces strain on workers and enhances overall efficiency by providing superior mobility for carts, trolleys, and industrial equipment.
Colson Casters is renowned for its dedication to delivering high-performance mobility solutions. With decades of experience and a commitment to quality, Colson Casters has built a reputation as a trusted brand among professionals. By choosing Colson Casters, you're investing in reliable products that are engineered to meet the toughest demands, backed by superior customer support and ongoing product innovation.
Installing the Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter is a straightforward process. Simply insert the expanding adapter into the square tubing and secure it. The expanding adapter fits square tubing with an inside diameter of 1-3/8" to 1-7/16", ensuring a tight and secure fit for stable and reliable performance.
At Colson Casters, we stand behind the quality and durability of our products. We are committed to providing mobility solutions that enhance your productivity and reduce operational downtime. Our team is dedicated to offering excellent customer service, ensuring that you have the best possible experience with every purchase.
This Colson 2.04267.53 MTG55 4" x 1.25" Polyolefin Caster – 1-3/8" Square Tube 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 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 top-plate mount. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
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 5.25". 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 | colson header |
| Dimensions & Mounting | |
| Wheel Diameter | 4" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 5.25" |
| Mount Style | Plate |
| Load & Performance | |
| Wheel Capacity | 275 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
4" x 1.25" Polyurethane Swivel Caster – 325 lb | 2.5" x 3.625" Top Plate | CasterHQ
4" x 1-1/4" · 260 lbs
$14
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 with Total Lock Brake + brake | — | $24.00 | View → | |
| 260 lbsLighter duty | 4" × 1-1/4"Polyurethane | Swivel | 4-1/8" | $14.00 | View → | |
| 275 lbs | 4" × 1-1/4"Polyolefin | — | 5.25" | $55.00 | Viewing | |
| 300 lbsHeavier duty | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $19.00 | View → | |
| 300 lbsHeavier duty | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $19.00 | View → |
