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 Ball Bearing Caster with Expanding Adapter (MTG45) offers exceptional strength and maneuverability. Engineered with high-quality polyolefin, this caster ensures a smooth and quiet rolling experience, making it ideal for a variety of heavy-duty applications.
Featuring an expanding adapter with a 1-3/8" to 1-7/16" inside diameter, this caster is designed to fit round tubing, ensuring a secure and reliable connection to your equipment. Whether you're outfitting industrial machinery, medical carts, or other mobile setups, this caster is built to withstand the rigors of daily use while maintaining peak performance.
With its 4" x 1.25" wheel size, this caster provides the perfect balance of stability and precision control, ensuring effortless movement even under heavy loads. Trust Colson Casters to provide innovative solutions for your mobility challenges, backed by a commitment to quality and durability.
Upgrade your mobility solutions with the Colson Casters 4" x 1.25" Polyolefin Ball Bearing Caster. Engineered for efficiency and reliability, this caster ensures smooth operation in a variety of environments. Discover the difference in mobility today.
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 (MTG45) is a premium mobility solution designed to meet the demanding requirements of industrial, medical, and commercial applications. This caster features high-quality polyolefin wheels and a durable ball bearing design, ensuring smooth and reliable performance even in the toughest environments.
Designed for optimal performance, this Colson Caster excels in environments where smooth movement and durability are crucial. The polyolefin material provides excellent floor protection and resistance to abrasion, ensuring that both the caster and the floors remain in top condition. The ball bearing mechanism minimizes friction, allowing for effortless maneuvering and a quieter operation. Whether you're moving medical carts in a hospital or equipment in a factory, this caster will meet the needs of demanding applications.
Moreover, the expanding adapter design with a 1-3/8" to 1-7/16" inside diameter allows for compatibility with a range of tubing sizes, ensuring secure installation and flexibility. This feature adds to the caster's versatility, making it suitable for various mounting applications without the need for additional adapters or modifications.
Colson Casters is a trusted name in the industry, known for its commitment to quality and performance. This 4" x 1.25" Polyolefin Ball Bearing Caster with Expanding Adapter (MTG45) is manufactured using high-grade materials to withstand heavy-duty use. The robust construction ensures that the caster can handle substantial loads without compromising its functionality or lifespan. Whether in a factory, warehouse, or healthcare setting, Colson Casters provide reliability and long-lasting durability for every application.
Colson Casters are engineered to perform across a broad spectrum of industries. From industrial equipment requiring heavy-duty mobility to medical carts needing precision and smooth movement, the 4" x 1.25" Polyolefin Ball Bearing Caster with Expanding Adapter (MTG45) is up to the task. It provides the reliability and versatility needed in environments that demand high performance, ensuring that your equipment moves smoothly and efficiently wherever it is used.
Upgrade your equipment with the Colson Casters 4" x 1.25" Polyolefin Ball Bearing Caster with Expanding Adapter (MTG45) and experience a new level of durability, performance, and ease of movement. Perfect for industrial, medical, and commercial applications, this caster ensures your mobility solutions are efficient and reliable.
Trust Colson Casters for top-tier quality and long-lasting performance. Order today and take your mobility solutions to the next level!
This Colson MTG45 4" x 1.25" Polyolefin Caster – 1-3/8" to 1-7/16" 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).
$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 → |
