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 3.5" x 1.25" HI-TECH Delrin Bearing Caster with 3/4" to 13/16" Inside Dia. Round Tubing Expanding Adapter (MTG40) – 2.03267.91 MTG40 is designed for precise, long-lasting performance in a wide range of applications. The caster features durable HI-TECH Delrin material, known for its excellent wear resistance and smooth operation under load. Its high-performance bearing system ensures effortless movement while maintaining stability. The expanding adapter is perfect for securely fitting round tubing from 3/4" to 13/16" inside diameter, making installation quick and easy. Whether used in industrial or commercial settings, this caster offers reliable support for a variety of equipment.
Our 3.5" x 1.25" HI-TECH Delrin Bearing Caster with Expanding Adapter (MTG40) is engineered with top-quality materials and manufactured to meet stringent industry standards. Each caster undergoes rigorous testing to ensure optimal performance, durability, and load-bearing capacity. Backed by our customer satisfaction guarantee, you can rely on the quality of our products for your business or industrial needs. We stand behind our products, delivering solutions that add value and long-term reliability to your operations.
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" HI-TECH Delrin Bearing Caster with Expanding Adapter for Round Tubing (MTG40) is a precision-engineered solution designed to meet the demanding needs of industrial and commercial environments. Built to deliver smooth, reliable performance under heavy-duty conditions, this caster features advanced materials and design to ensure long-lasting durability, even in extreme environments.
Designed for optimal efficiency, the caster features HI-TECH polyurethane wheels, which are known for their high durability, smooth operation, and resistance to wear. This ensures consistent movement even in harsh industrial environments. The Delrin bearings provide exceptional load-bearing capacity and reduce the friction for smoother performance under heavy loads.
Featuring full double ball hardened raceways, this caster is engineered for high performance and durability. The inclusion of multi-temperature grease allows this caster to operate efficiently in both extremely hot and cold conditions, making it a versatile choice for various industrial applications.
The caster is designed with a 3/4" to 13/16" inside diameter round tubing expanding adapter (MTG40), ensuring secure attachment to a wide variety of equipment. This versatility makes it ideal for use in machinery, material handling, and any application requiring stable and reliable movement in industrial settings.
Constructed with a zinc finish, this caster provides enhanced corrosion resistance, making it suitable for environments exposed to moisture, chemicals, and harsh working conditions. Whether you're operating in outdoor conditions or damp industrial areas, this caster is built to last.
With an operating temperature range of -45°F to +180°F, this caster can withstand both freezing cold and intense heat without compromising performance. Its robust design ensures that it continues to perform under a variety of environmental stressors, enhancing its reliability in diverse industrial conditions.
Backed by a 3-year warranty, the 3.5" x 1.25" HI-TECH Delrin Bearing Caster provides peace of mind, ensuring that your investment is protected. In addition, it is RoHS compliant and an NSF component (less thread guards), meeting industry standards for safety, reliability, and environmental responsibility.
Choosing the 3.5" x 1.25" HI-TECH Delrin Bearing Caster with Expanding Adapter guarantees you a durable, high-performance solution for your industrial equipment. Designed with quality in mind, this caster ensures smooth and efficient movement, long-term durability, and the ability to operate under extreme conditions. Whether you are handling heavy machinery or need reliable support in challenging environments, this caster is a trusted choice for demanding industrial applications.
This Colson 2.03267.91 3.5" x 1.25" Delrin Caster 3/4" to 13/16" 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 Polyurethane 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 Polyurethane 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).
$61.00
| 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 | 250 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Frame Material | Zinc Plated Steel |
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