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 3.5" x 1.25" Polyolefin Delrin Bearing Caster with 1" to 1-1/16" Inside Dia. Round Tubing Expanding Adapter (MTG42) is an ideal solution for applications requiring both durability and versatility. The caster is built with a Polyolefin wheel, providing excellent resistance to impact and wear, while the Delrin ball bearings ensure smooth and efficient movement, even under heavy loads. The expanding adapter (MTG42) is engineered to fit a range of round tubing sizes, making this caster adaptable for various equipment and machinery. Its corrosion-resistant design enhances its durability, making it a reliable option for both indoor and outdoor applications.
Our 3.5" x 1.25" Polyolefin Delrin Bearing Caster with 1" to 1-1/16" Inside Dia. Round Tubing Expanding Adapter (MTG42) (2.03267.53 MTG42) is designed to meet the highest industry standards, ensuring exceptional reliability and performance. Each caster is subjected to rigorous testing to ensure it meets the demands of industrial environments. We are committed to providing durable and high-quality products that stand the test of time. With our customer satisfaction guarantee, you can trust that this caster will meet your business needs for years to come.
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 3.5" x 1.25" Polyolefin Delrin Bearing Caster with 1" to 1-1/16" Inside Dia. Round Tubing Expanding Adapter (MTG42) is an ideal solution for a variety of heavy-duty industrial applications. Designed for durability, smooth movement, and easy adaptability, this caster is built to perform under challenging conditions, providing a reliable option for your machinery, carts, and other equipment.
This caster is engineered to provide outstanding performance in industrial environments. It features a high load capacity of 230 lb, making it suitable for a wide range of applications. The polyolefin wheel offers exceptional resistance to wear, corrosion, and impact, ensuring that it stands up to the rigors of daily industrial use. Additionally, the caster is equipped with Delrin ball bearings for smooth and efficient movement, even under heavy loads.
The caster's expanding adapter is designed to fit round tubing with an inside diameter of 1" to 1-1/16", offering flexibility and compatibility with different equipment. Its swivel design ensures easy maneuverability, while the full double ball raceways and multi-temperature grease provide enhanced durability, making it effective in extreme temperature conditions ranging from -45°F to +180°F. This makes the caster highly versatile and reliable in various industrial environments.
Constructed with a polyolefin wheel and Delrin bearings, this caster is built for long-lasting performance. The robust design ensures that it can handle heavy-duty applications without compromising on functionality. The caster’s versatile mounting height (4.56 inches) and expanding adapter design make it suitable for a variety of equipment setups, offering seamless installation in different configurations.
The expanding adapter allows the caster to accommodate a wide range of round tubing sizes, enhancing its usability across different machinery. This level of adaptability ensures that this caster remains a top choice for businesses looking for reliable, long-term solutions for their equipment mobility needs.
To ensure the highest quality standards, this caster undergoes rigorous testing to confirm that it meets industrial-grade specifications. The full double ball hardened raceways ensure enhanced durability and smooth performance, while multi-temp grease provides exceptional performance in both hot and cold environments.
Backed by a 3-year warranty, the 3.5" x 1.25" Polyolefin Delrin Bearing Caster offers peace of mind for businesses seeking reliable products for their equipment. Its RoHS compliance and NSF component certification (excluding thread guards) further assure customers of its adherence to safety and environmental standards.
Ideal for a wide range of industrial applications, this caster is perfect for use in carts, machinery, shelving units, and other equipment that require smooth, reliable movement. Whether for use in warehouses, factories, or other heavy-duty settings, the 3.5" x 1.25" Polyolefin Delrin Bearing Caster is designed to meet the needs of demanding environments.
The 3.5" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter (MTG42) is a top-tier solution for those looking to enhance the functionality and mobility of their industrial equipment. Its durable materials, versatile design, and high-performance capabilities make it a dependable choice for any business looking for long-lasting, efficient casters that stand up to the demands of daily industrial use.
This Colson 2.03267.53 3.5" x 1.25" Polyolefin Caster – 1" to 1-1/16" is rated to 230 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 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).
$55.00
| 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 | 230 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
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