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.
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Gate Casters
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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 Ball Bearing Caster with 1" to 1-1/16" Inside Dia. Round Tubing Expanding Adapter (MTG42) offers superior performance for a wide range of industrial and commercial applications. The polyolefin wheel ensures excellent wear resistance and smooth operation, even under heavy loads. Equipped with precision ball bearings, this caster guarantees reliable and effortless movement in various environments. The expanding adapter provides secure mounting for round tubing with 1" to 1-1/16" inside diameter, making it ideal for versatile uses across different machinery or equipment.
Our 3.5" x 1.25" Polyolefin Ball Bearing Caster with Expanding Adapter (MTG42) is crafted to the highest standards of quality and reliability. Each caster undergoes rigorous testing to meet industry-grade specifications, ensuring that it can handle demanding tasks with ease. Backed by our commitment to quality and customer satisfaction, you can trust that this caster will provide long-term, dependable service for your equipment and machinery needs.
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 Ball Bearing Caster with Expanding Adapter (MTG42) is engineered for optimal performance and durability in industrial and commercial environments. It combines robust materials and precise engineering to offer smooth, efficient movement under various load conditions. Designed for heavy-duty use, it is ideal for applications where reliability, durability, and long-lasting performance are critical.
The caster features full double ball hardened raceways that ensure superior performance and extended durability. This advanced feature provides smoother rolling under pressure, making it ideal for applications that require consistent and reliable operation in demanding environments. Additionally, the use of multi-temperature grease enables the caster to operate efficiently in a wide range of temperatures, from -45°F to +180°F, ensuring versatility across different operational conditions.
The polyolefin wheel provides excellent durability and impact resistance, capable of withstanding wear and heavy use. It ensures smooth movement even in tough environments, offering high-strength performance without compromising on mobility. The ball bearing system within the wheel guarantees efficient rolling, reducing friction and wear, which translates to smoother movement and longer product life.
Designed with a zinc-plated finish, this caster is highly resistant to corrosion, making it perfect for environments where moisture and other harsh conditions are present. This finish extends the lifespan of the caster, ensuring that it can handle the wear and tear of industrial environments without compromising its functionality or appearance.
One of the key features of the 3.5" x 1.25" Polyolefin Ball Bearing Caster is its expanding adapter, which fits 1" to 1-1/16" inside diameter round tubing. This makes installation simple and ensures secure attachment to a variety of machinery and equipment. The versatile mounting system is designed to make the caster compatible with a wide range of industrial applications, adding flexibility for different user needs.
With a load capacity of 230 lbs, this caster is designed to handle moderate to heavy-duty tasks. Whether it's for machinery, industrial equipment, or commercial applications, the caster can reliably support significant loads, making it an essential choice for moving equipment that requires strength and durability.
Operating efficiently in temperatures ranging from -45°F to +180°F, this caster offers reliability even in extreme environmental conditions. Whether your operation is in a freezing cold warehouse or a hot manufacturing plant, this caster ensures that equipment remains mobile and functional no matter the temperature.
This caster comes with a 3-year warranty, underscoring the manufacturer’s confidence in the product's quality and performance. It is also RoHS compliant, ensuring that it meets environmental standards, and NSF-certified (excluding thread guards), providing assurance for use in regulated industries.
We are committed to delivering high-quality, durable products that meet the needs of industrial and commercial users. Our casters undergo rigorous testing to ensure they meet industry standards and can withstand demanding use. Backed by our 3-year warranty, you can rely on the 3.5" x 1.25" Polyolefin Ball Bearing Caster with Expanding Adapter (MTG42) to deliver exceptional value and long-lasting performance for your business.
This Colson 2.03267.55 MTG42 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.
This is a Swivel caster. Swivel casters rotate 360 degrees for full maneuverability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
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).
$62.00
| Identification | |
| Brand | colson header |
| Dimensions & Mounting | |
| Wheel Diameter | 3-1/2" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 4.56" |
| Mount Style | Plate |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 230 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
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