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The Colson Casters 4" x 1.25" Polyolefin Ball Bearing Caster with Expanding Adapter (MTG46) is a versatile and durable solution for your mobility needs. Designed for use with 1-1/2" to 1-9/16" inside diameter round tubing, this caster ensures seamless installation and stable, reliable movement.
Crafted from high-quality polyolefin material, the wheel provides a smooth and long-lasting surface for a variety of applications. The precision ball bearings enhance the caster's rolling efficiency, making it ideal for environments that require consistent, low-friction mobility, such as hospitals, factories, and warehouses.
The expanding adapter (MTG46) allows for easy and secure attachment to compatible tubing, ensuring that the caster stays firmly in place. Whether you're upgrading existing equipment or designing new mobility solutions, this caster offers the strength, performance, and adaptability you need for long-term use.
Enhance the efficiency and durability of your equipment with the Colson Casters 4" x 1.25" Polyolefin Ball Bearing Caster. Built for heavy-duty use and designed for easy installation, this caster delivers exceptional value and performance.
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 Ball Bearing Caster with Expanding Adapter (MTG46) is a top-tier solution for ensuring reliable and smooth mobility across various industrial, medical, and commercial settings. Designed with precision and engineered for durability, this caster provides exceptional performance in demanding applications such as factories, warehouses, hospitals, and other heavy-duty environments. The expanding adapter ensures easy and secure installation, making this caster a versatile addition to your mobility solutions.
Wheel Material: The polyolefin wheel is known for its durability and resistance to wear, ensuring that it will stand up to the rigors of frequent use. Polyolefin is an excellent material choice for environments that require a reliable, long-lasting, and smooth rolling experience. It is well-suited for applications where floor protection and consistent performance are essential.
Precision Ball Bearings: Featuring high-quality ball bearings, this caster provides smoother movement and reduced friction, resulting in improved efficiency and reduced strain during operation. This feature is especially valuable in environments where consistent, low-resistance movement is required to maximize productivity and minimize wear on equipment.
Expanding Adapter (MTG46): One of the standout features of this caster is its expanding adapter, which allows it to securely fit onto tubing with an inside diameter ranging from 1-1/2" to 1-9/16". This makes the caster extremely adaptable and easy to install across various equipment, ensuring a secure fit in your mobility solutions without the need for specialized mounting systems.
Durability and Longevity: Designed for heavy-duty applications, this caster is built to last. Its robust construction ensures that it can handle challenging environments without compromising on performance. With this level of durability, you can trust that this caster will continue to perform reliably over time, reducing the need for replacements and minimizing downtime.
Versatile Use: This caster is ideal for a wide range of applications. Whether you're outfitting hospital equipment, warehouse carts, or heavy machinery, the Colson Casters 4" x 1.25" Polyolefin Ball Bearing Caster is designed to provide superior mobility in a variety of settings. Its ability to handle both industrial and medical applications makes it a versatile choice for businesses across multiple industries.
Easy Installation: The expanding adapter makes installation quick and straightforward. This user-friendly design eliminates the need for specialized tools or complicated setup, allowing you to focus on maximizing productivity without unnecessary delays.
Low Friction Movement: With precision ball bearings and a smooth polyolefin wheel, this caster is designed for low friction movement. This feature helps reduce strain on the user while ensuring that the caster rolls effortlessly across floors, even in high-traffic or demanding environments.
Productivity and Efficiency: The smooth, reliable movement provided by this caster improves overall productivity in any environment. By reducing friction and increasing maneuverability, this product helps streamline operations, enhancing the efficiency of your equipment and the comfort of your staff.
Reliable Brand: Colson Casters is a trusted name in mobility solutions, known for its commitment to quality and innovation. When you choose Colson, you are investing in a product that delivers consistent performance, excellent durability, and outstanding value, backed by a brand with years of industry experience.
This Colson MTG46 4" x 1.25" Polyolefin Caster – 1-1/2" to 1-9/16" ID 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).
$62.00
| 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" | $62.00 | 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 → |
