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The 5" x 1.25" Performa Ball Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) - 2.05267.445 MTG51 is designed to provide unmatched durability and smooth operation for industrial and commercial applications. Featuring a robust Performa rubber wheel, this caster offers superior strength, impact resistance, and long-lasting performance. The precision ball bearings ensure smooth rolling under heavy loads, making it an ideal solution for carts, machinery, and various equipment requiring precise control and maneuverability. The innovative expanding adapter (MTG51) accommodates square tubing with 7/8" to 15/16" inside diameter, providing a versatile and secure mounting solution. Built to handle demanding environments, this caster delivers high performance without compromise.
Our 5" x 1.25" Performa Ball Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) - 2.05267.445 MTG51 is crafted to meet the highest standards of quality and reliability. Each caster undergoes rigorous testing to ensure its durability, smooth operation, and ability to withstand heavy-duty use. We stand behind the performance and longevity of our products, offering a customer satisfaction guarantee. You can trust our casters to meet your industrial needs, backed by our commitment to providing top-quality, dependable products for your business.
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 5" x 1.25" Performa Ball Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) - 2.05267.445 MTG51 is a robust, high-performance caster designed for demanding industrial applications. Whether you're looking to enhance the maneuverability of machinery, carts, or heavy equipment, this caster provides the durability and precision you need for seamless operations.
Built to withstand heavy-duty use, the caster features a Performa rubber wheel that combines superior strength, impact resistance, and excellent traction. This material is specifically engineered for high durability, ensuring that the caster performs reliably in challenging environments. The precision ball bearings enable smooth, quiet operation, reducing wear and tear over time while enhancing overall performance. With a load capacity of 325 lb, this caster is perfect for moving heavy machinery or equipment with ease.
Designed for versatility, this caster operates effectively in extreme temperatures, with a wide operating range of -45°F to +180°F. The specialized multi-temperature grease used in the ball bearings ensures reliable movement in both hot and cold environments. Whether you’re working in cold storage, manufacturing facilities, or environments exposed to fluctuating temperatures, this caster is built to endure.
The caster is equipped with a unique 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51), making it compatible with a wide range of square tubing for easy and flexible mounting. This expanding adapter allows for quick installation, saving time and ensuring a secure fit. Whether you are upgrading existing equipment or building new machinery, this caster offers adaptable mounting solutions to meet your specific needs.
Our casters are designed with a commitment to quality and safety. The 3-year warranty guarantees that your purchase will provide reliable performance for years to come. In addition, this caster is RoHS compliant, ensuring that it meets environmental standards for reducing hazardous substances. Furthermore, it is an NSF-certified component (excluding thread guards), making it suitable for use in industries where hygiene and safety are paramount, such as food and medical equipment handling.
The 2.05267.445 MTG51 caster is ideal for anyone who needs a high-performance, long-lasting, and versatile solution for their industrial equipment. From precise movement to exceptional load-bearing capacity, this caster supports smooth and efficient operations. Whether you're looking for a caster to enhance your factory's productivity or upgrade your equipment for durability, this product delivers exceptional value. It's designed for users who demand quality, reliability, and high performance from their equipment.
This Colson MTG51 5" x 1.25" Performa Caster – 7/8" to 15/16" Square Stem is rated to 325 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 6.31". 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).
$67.00
| Identification | |
| Brand | colson header |
| Dimensions & Mounting | |
| Wheel Diameter | 5" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 6.31" |
| Mount Style | Plate |
| Load & Performance | |
| Wheel Capacity | 325 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Gray Rubber |
| Wheel Core Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
5" x 1-1/4" Polyurethane Swivel Caster – 325 lb | 3-1/8" x 4-1/8" Plate | CasterHQ
5" x 1-1/4" · 325 lbs
$27
5" x 1-1/4" Polyurethane Swivel Caster – 325 lb | 3-1/8" x 4-1/8" Plate | CasterHQ
5" x 1-1/4" · 325 lbs
$23
View all 5′ x 1-1/4′ casters & wheels →
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 | |
|---|---|---|---|---|---|---|
| 315 lbsLighter duty | 5" × 1-1/4"Gray Rubber | Rigid | 6-1/4" | $17.00 | View → | |
| 315 lbsLighter duty | 5" × 1-1/4"Gray Rubber | Swivel | 6-1/4" | $18.00 | View → | |
| 325 lbs | 5" × 1-1/4"Gray Rubber | — | 6.31" | $67.00 | Viewing | |
| 325 lbsSame capacity | 5" × 1-1/4"Polyurethane | Rigid | 6-1/4" | $20.00 | View → | |
| 325 lbsSame capacity | 5" × 1-1/4"Polyurethane | Swivel | 6-1/4" | $27.00 | View → |
