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.
Specialty Casters
Gate Casters
BBQ Pit & Smoker Casters
Keyed Drive Wheels
Drywall Cart Casters
Skid Wheels & Casters for RVs
Leveling Casters
Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels
Low Profile Casters
Cart Wheels & Casters
Toolbox Caster Sets
Bakery & High Temperature Casters
Kitchen Prep Table Caster Sets
Wire Shelving Casters
Silent Glide Casters

The Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter (MTG46) is a high-quality solution for a wide range of applications. Featuring a durable polyolefin wheel, this caster is designed for longevity and optimal performance in both industrial and general-purpose settings. The Delrin bearing ensures smooth rotation and minimizes wear, even under high loads.
This caster is equipped with an expanding adapter (MTG46), providing a secure and stable connection to round tubing with an inside diameter range of 1-1/2" to 1-9/16". This feature ensures compatibility with a variety of materials handling equipment and makes installation quick and easy, improving operational efficiency.
Perfect for material handling applications, this caster excels in environments where durability and performance are critical. Whether used in light-duty industrial settings or general-purpose environments, the Colson Casters 4" x 1.25" Polyolefin Caster is an essential choice for reliable mobility solutions.
Choose the Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster for superior performance, reliability, and ease of installation. Enhance your mobility solutions with high-quality, durable casters that work as hard as you do.
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 (MTG46) is engineered to provide exceptional durability and performance for material handling and industrial applications. Designed with a high-quality polyolefin wheel and a Delrin bearing, this caster is built to withstand the demands of both light-duty and more intensive operational environments, offering smooth movement, reduced wear, and reliable load-bearing capacity.
This caster is designed with both the user and the application in mind. The polyolefin wheel and Delrin bearing combination ensures a smooth, low-friction experience, while the expanding adapter provides an easy installation process for different equipment setups. The 4" x 1.25" wheel size ensures versatility in use, from light-duty applications to more demanding industrial tasks. Whether you're handling materials, moving equipment in a factory, or need smooth, hassle-free movement in a warehouse, this caster delivers a reliable, long-lasting solution.
The Colson Casters 4" x 1.25" Polyolefin Caster is built to last. Its durable construction means that users can rely on this caster to handle constant use, whether it’s in high-traffic areas or more specialized environments like medical or material handling areas. The expanding adapter ensures a secure fit that won't slip or become loose over time, while the high-quality polyolefin wheel resists abrasion and ensures smooth rolling on a variety of surfaces. This combination of features results in a caster that offers excellent maneuverability, reducing the physical effort required to move equipment and increasing productivity.
Whether you're outfitting new equipment or replacing older casters, the Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster is a perfect choice. It’s ideal for industrial environments where mobility is essential, but it’s also well-suited for general-purpose use in warehouses, factories, hospitals, and other commercial settings. The expanding adapter makes it versatile, ensuring compatibility with a wide range of tubing sizes.
Colson Casters has been a trusted name in mobility solutions for years. Known for producing high-quality, durable casters, Colson continues to innovate and meet the diverse needs of industries that rely on efficient and reliable movement solutions. By choosing Colson Casters, you're investing in a brand that is dedicated to excellence and customer satisfaction.
Enhance your operations with the Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster. Designed to deliver reliability, ease of installation, and superior performance, this caster is the solution you need for smooth, hassle-free movement. Order now and experience the difference in mobility!
This Colson 2.04267.53 4" x 1.25" Polyolefin Caster – 1-1/2" 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 → |



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