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 5" x 1.25" Performa Delrin Bearing Caster with 1-3/8" to 1-7/16" Inside Dia. Round Tubing Expanding Adapter (MTG45) - 2.05267.441 MTG45 is expertly engineered for smooth, low-resistance movement, making it a perfect choice for heavy-duty industrial and commercial applications. The high-quality Performa Delrin bearing allows for quiet and efficient rolling, reducing friction and enhancing mobility. The expanding adapter provides easy mounting on round tubing with a secure and stable fit, ensuring that the caster remains firmly in place even under heavy loads. This caster’s durable construction and resistance to corrosion make it well-suited for demanding work environments.
We pride ourselves on delivering high-performance products that meet the toughest industry standards. The 5" x 1.25" Performa Delrin Bearing Caster with 1-3/8" to 1-7/16" Inside Dia. Round Tubing Expanding Adapter (MTG45) - 2.05267.441 MTG45 has been meticulously tested for quality and durability, ensuring it meets all specifications for industrial use. Our commitment to quality is reflected in every caster we produce, offering you peace of mind and long-term reliability in your operations. Backed by a customer satisfaction guarantee, you can trust in the performance and longevity of this product in the most demanding environments.
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 Delrin Bearing Caster with 1-3/8" to 1-7/16" Inside Dia. Round Tubing Expanding Adapter (MTG45) - 2.05267.441 MTG45 is engineered for superior performance in industrial and commercial environments. Designed to carry heavy loads up to 325 lbs, this durable caster is built to meet the demands of tough work environments while ensuring smooth, efficient movement.
The caster features full double ball hardened raceways, enhanced with multi-temp grease to withstand extreme temperature conditions ranging from -45°F to +180°F. This makes it perfect for applications in diverse environments where temperature fluctuations are a factor. The Delrin bearings ensure smooth operation with minimal rolling resistance, helping to reduce friction and energy loss during movement.
With the included 1-3/8" to 1-7/16" Inside Diameter Round Tubing Expanding Adapter, the caster is easy to install and secure, allowing you to mount it quickly and with confidence. The expanding adapter ensures a precise and stable fit, making the installation process seamless and fast.
The caster is crafted from high-quality materials that are resistant to corrosion, making it ideal for use in demanding environments such as warehouses, manufacturing plants, and outdoor settings. Whether exposed to harsh chemicals, weather conditions, or heavy-duty tasks, this caster will continue to perform reliably for years.
The flat tread wheel profile ensures stable contact with the surface, resulting in smooth and controlled movement across a variety of terrains. Whether navigating through smooth floors or rough surfaces, this caster will provide consistent, stable performance.
This caster is backed by a 3-year warranty, reflecting the commitment to quality and customer satisfaction. You can be confident in your investment knowing that the product is designed for long-term reliability, with a warranty that offers support should you encounter any issues.
In addition to the product’s high durability and performance, it is also RoHS compliant and an NSF component (without thread guards), meeting stringent environmental and safety standards. This compliance ensures that the caster is safe, eco-friendly, and suitable for a variety of industries.
The 5" x 1.25" Performa Delrin Bearing Caster with Round Tubing Expanding Adapter (MTG45) is the perfect solution for heavy-duty industrial applications. With its superior load capacity, advanced raceway technology, easy installation, and long-lasting durability, this caster is designed to enhance efficiency and performance in demanding environments. Backed by a 3-year warranty and compliance with industry standards, it offers the quality and peace of mind you need for your business operations.
This 5" x 1.25" Performa Rigid Caster – 1-3/8" to 1-7/16" Adapter 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).
$61.00
| 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" | $61.00 | 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 → |




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