Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
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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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The Colson Casters 3.5" x 1.25" Performa Delrin Bearing Caster with Expanding Adapter (MTG51) combines high-performance engineering with durability to meet the needs of demanding industrial applications. The caster features a Performa rubber wheel, designed for smooth operation and a Delrin bearing that ensures long-lasting, reliable performance even under heavy loads.
This caster is equipped with an expanding adapter that fits square tubing with an inside diameter range of 7/8" to 15/16", allowing for versatile mounting on various equipment types. Whether you're outfitting heavy-duty carts, industrial machinery, or other operational setups, this caster provides stability, mobility, and ease of use, helping to enhance the efficiency of your workflow.
Colson Casters is known for engineering premium products that prioritize safety, performance, and reliability. This caster model is no exception, providing not only superior load handling capacity but also ergonomic ease of movement. Choose Colson Casters for a product that can stand up to the toughest conditions while providing excellent value over time.
Upgrade your operational mobility with the Colson Casters 3.5" x 1.25" Performa Delrin Bearing Caster. Engineered for performance and durability, this caster is an essential addition to any industrial setup. Improve efficiency and reliability with Colson Casters 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 3.5" x 1.25" Performa Delrin Bearing Caster with Expanding Adapter (MTG51) is engineered to deliver high performance, durability, and versatility. Designed for heavy-duty applications, this caster is equipped with a premium Performa rubber wheel, a Delrin bearing, and an expanding adapter that fits square tubing with inside diameters ranging from 7/8" to 15/16". This combination ensures that your industrial equipment operates with smooth mobility, reducing friction and providing reliable support, even under heavy loads.
Crafted with high-quality materials, the Performa rubber wheel offers exceptional resilience, making it ideal for demanding environments. The Delrin bearing enhances the performance by providing smoother rotation and reducing wear over time. The expanding adapter design allows this caster to be easily mounted on square tubing with an inside diameter between 7/8" and 15/16", providing a secure fit and ensuring that the caster remains stable during operation.
This caster is engineered to support heavy loads efficiently, offering superior strength and stability. Whether used in industrial carts, machinery, or other heavy-duty equipment, the Colson Casters model ensures smooth operation without compromising on durability. The Performa rubber wheel is specifically designed to minimize strain, while the Delrin bearing further enhances performance, allowing for reduced friction and longer-lasting functionality.
The Colson Casters 3.5" x 1.25" Performa Delrin Bearing Caster is perfect for a wide range of industrial and commercial applications. Ideal for heavy-duty carts, medical equipment, warehouse systems, and more, this caster offers the versatility to meet the mobility needs of different environments. Its expanding adapter is particularly useful for mounting on square tubing, making it adaptable to various industrial setups. Whether you need to equip machinery or improve the maneuverability of carts, this caster delivers both reliability and smoothness for any application.
Durability is a key feature of this Colson Casters model. Built to endure the rigors of industrial environments, the caster's materials are designed to withstand harsh conditions, heavy loads, and high-frequency use. The Performa rubber and Delrin bearing ensure that the caster operates smoothly for years, even under tough conditions, making it an excellent long-term investment for businesses looking for reliable mobility solutions.
The expanding adapter of this caster simplifies the installation process, allowing for a quick and secure mounting on square tubing with the appropriate inside diameter. This user-friendly design minimizes downtime and allows your equipment to be operational faster, improving workflow efficiency. The secure fit ensures that the caster stays in place during operation, contributing to a stable and smooth user experience.
This Colson MTG51 3.5" x 1.25" Performa Caster – 7/8" to 15/16" Stem is rated to 250 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 Gray Rubber wheel with a 1-1/4" tread width. Rubber absorbs shock and protects floors, and runs quietly, which suits noise-sensitive and light-to-medium duty use.
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 Gray Rubber wheel performs best on rough, uneven, or outdoor surfaces such as asphalt, gravel, and cracked concrete. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 4.56". 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).
$57.00
| Identification | |
| Brand | colson header |
| Dimensions & Mounting | |
| Wheel Diameter | 3-1/2" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 4.56" |
| Mount Style | Plate |
| Load & Performance | |
| Wheel Capacity | 250 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Gray Rubber |
| Wheel Core Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
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