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The Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter (MTG54) is engineered to deliver exceptional durability and performance in demanding environments. Designed for 1-1/4" to 1-5/16" Inside Diameter Square Tubing, this caster is perfect for applications that require strength and reliability.
Featuring a high-quality Polyolefin wheel material, this caster ensures superior durability and resistance to wear, while the Delrin Bearing provides smooth, quiet, and efficient movement, reducing friction and minimizing maintenance. The expanding adapter design makes it easy to install on square tubing, providing a secure and stable mounting solution.
Ideal for industrial applications, this caster is built to handle heavy loads with ease, offering enhanced maneuverability in environments like factories, warehouses, and material handling operations. With its robust construction and reliable performance, it supports optimal mobility and productivity.
Colson Casters is committed to excellence, delivering reliable, high-quality mobility solutions. Enhance your operations with the Colson Casters Polyolefin Delrin Bearing Caster, designed to meet the needs of demanding industries while offering superior performance and dependability.
Upgrade your operations with Colson Casters' Polyolefin Delrin Bearing Caster, engineered for reliability and performance in industrial environments. Experience smooth, efficient movement and enhanced durability in every application.
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 (MTG54) is designed to deliver outstanding performance in demanding industrial settings. With its durable Polyolefin wheel material, this caster offers exceptional strength and reliability for applications that require both maneuverability and load capacity. Whether you're handling heavy machinery, equipment, or warehouse items, this caster ensures smooth movement and easy installation in square tubing sizes of 1-1/4" to 1-5/16" inside diameter.
This caster is designed for a variety of applications where mobility and strength are critical. It is particularly well-suited for industries such as manufacturing, logistics, healthcare, and material handling. The Polyolefin Delrin Bearing Caster excels in environments like factories, warehouses, hospitals, and distribution centers. With its shock-absorbing design and high load capacity, it is perfect for moving heavy equipment, carts, and other industrial goods in a range of settings.
Colson Casters are known for their high-quality materials and craftsmanship. This 4" x 1.25" caster is built with longevity in mind, using rust and corrosion-resistant materials that are ideal for both indoor and outdoor environments. Additionally, the caster's Polyolefin wheels provide excellent resistance to chemicals, oils, and other substances commonly found in industrial environments. Each caster undergoes rigorous testing to meet Colson's strict quality standards, ensuring that it performs reliably even in the harshest conditions.
The Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter (MTG54) is an essential mobility solution for any business requiring heavy-duty, reliable, and efficient casters. Whether you're managing a warehouse, a factory, or a healthcare facility, this caster provides the performance, durability, and ease of use you need. Upgrade your equipment today with Colson's proven quality and engineering.
This Colson MTG54 4" x 1.25" Polyolefin Expanding Stem Caster – 350 lb 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 → |
