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.
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Band Equipment Casters & Wheels
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Toolbox Caster Sets
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Silent Glide Casters

The Colson Casters 4" x 1.25" Polyolefin Ball Bearing Caster with Expanding Adapter (MTG44) offers exceptional performance and reliability for a wide range of applications. Designed with a durable polyolefin wheel, this caster delivers smooth and quiet rolling, making it ideal for use on various floor types. The ball bearing construction ensures reduced friction, allowing for easy maneuverability in both light and heavy-duty settings.
The expanding adapter is engineered to fit 1-1/4" to 1-5/16" inside diameter round tubing, providing a secure and versatile mounting option for a variety of caster needs. Its heavy-duty design makes it suitable for demanding environments, such as warehouses, factories, and medical facilities, where durability and functionality are paramount.
Whether you require a caster for industrial equipment or medical carts, this product is built to handle tough workloads and maintain smooth operation. The Colson Casters 4" Polyolefin Ball Bearing Caster ensures your mobility solutions remain efficient and reliable, no matter the setting.
Enhance the efficiency of your operations with Colson Casters' 4" Polyolefin Ball Bearing Caster with Expanding Adapter. Designed for superior durability and smooth movement, this caster is the perfect solution for your industrial, medical, or commercial needs.
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 (MTG44) is engineered for exceptional reliability and performance in both industrial and commercial settings. Featuring a durable polyolefin wheel, this caster delivers smooth and easy rolling, even under heavy loads, making it an ideal choice for environments requiring mobility solutions that can withstand demanding conditions.
One of the standout features of this caster is its ball bearing design, which minimizes friction for effortless movement, reducing wear on both the caster and the surfaces it moves across. This smooth rolling action enhances user comfort, especially in high-traffic environments, and ensures minimal strain on equipment and operators.
The expanding adapter is designed to fit tubing with an inside diameter of 1-1/4" to 1-5/16", offering flexibility in mounting the caster to a wide variety of equipment. This ensures secure attachment to tubes of different sizes, making the caster highly adaptable to various industrial and medical applications.
Designed for heavy-duty use, the caster is built to carry substantial loads while ensuring even weight distribution. This makes it a reliable solution for warehouses, factories, hospitals, and other settings that demand consistent performance under pressure. The heavy-duty load capacity and durable materials ensure a long service life, minimizing downtime and the need for frequent replacements.
Installation is straightforward with the included 2.5" x 3.625" mounting plate, designed for secure and stable attachment. This ease of installation reduces setup time and enhances operational efficiency, making the caster a practical choice for time-sensitive environments.
Whether you're outfitting carts, medical equipment, or industrial machinery, the Colson Casters 4" Polyolefin Ball Bearing Caster is engineered to offer smooth, quiet operation and reduce maintenance costs. The polyolefin material offers excellent wear resistance, ensuring that the caster maintains its performance over time even under continuous use.
With its USA-made quality and high manufacturing standards, this caster delivers the reliability and durability you can trust. Whether used in medical, industrial, or commercial environments, it provides enhanced mobility that helps streamline operations and improve productivity.
In addition to its functional design, the Colson Casters 4" Polyolefin Ball Bearing Caster is designed for minimal maintenance. The ball bearing construction reduces wear and tear, keeping the caster in service longer and minimizing the need for frequent upkeep. This makes it a smart, cost-effective choice for long-term use in demanding environments.
This Colson MTG44 4" x 1.25" Polyolefin Caster 1-1/4" to 1-5/16" Stem 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 with a 2-1/2" x 3-5/8" plate and a 1-3/4" x 2-13/16" bolt pattern. 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" |
| Plate Size | 2-1/2" x 3-5/8" |
| Bolt Hole Pattern | 1-3/4" x 2-13/16" |
| 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 · Direct fit
$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 → |



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