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The Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter (MTG44) is a robust solution for heavy-duty applications. Designed with high-quality Polyolefin wheels and precision Delrin bearings, this caster ensures smooth and efficient rolling in various environments. Whether for industrial, medical, or commercial applications, this caster provides reliable support for your equipment and operations.
This caster comes equipped with an expanding adapter designed to fit 1-1/4" to 1-5/16" inside diameter round tubing, making it a versatile choice for different mounting needs. It is engineered to offer superior durability and smooth performance, even in the most demanding settings.
The Polyolefin material offers exceptional resistance to wear and impact, making it an excellent choice for environments with high foot traffic, moderate to heavy loads, and frequent movement. Coupled with its Delrin bearings, the caster provides minimal friction and enhanced performance, ensuring long-lasting reliability and ease of movement.
Upgrade your operation with Colson Casters' expanding adapter caster solution. Whether you need superior performance in a hospital, factory, or warehouse, this caster is built to withstand heavy-duty use, offering you a reliable, high-performance solution for all your mobility 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.
Upgrade your mobility solutions with the Colson Casters 4" x 1.25" Polyolefin Caster featuring Delrin bearings and an expanding adapter. This versatile caster is designed for industrial, commercial, and medical use, offering enhanced durability and smooth performance under demanding conditions. With its high-quality materials and engineering, this caster ensures reliable mobility for a wide range of applications.
This caster is ideal for applications where high durability, smooth rolling, and reliability are essential. The expanding adapter ensures it can be easily mounted onto different equipment, making it a perfect choice for:
Colson Casters is known for its commitment to providing high-quality, reliable, and innovative mobility solutions. With years of industry expertise, Colson offers products designed to improve operational efficiency, ensure safety, and provide long-lasting reliability. This 4" x 1.25" Polyolefin Caster is just one example of the exceptional products Colson delivers, ensuring smooth and efficient movement for your equipment, no matter the application.
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. 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 → |
