Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
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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" Polyolefin Delrin Bearing Caster with 1-1/2" to 1-9/16" Inside Dia. Round Tubing Expanding Adapter (MTG46) offers the perfect combination of durability and flexibility for a wide range of industrial applications. The polyolefin material, coupled with a Delrin bearing, provides superior smoothness in movement and resistance to wear. This caster is equipped with an expanding adapter that fits a range of tubing sizes, making it a versatile solution for a variety of mounting needs. The heavy-duty design ensures reliable performance, even under demanding conditions. Whether for equipment, machinery, or specialized setups, this caster meets the highest standards of functionality and longevity.
Our 3.5" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter (2.03267.53 MTG46) is crafted with attention to detail and built to meet the rigors of industrial use. Each caster undergoes strict testing to ensure that it meets the highest standards of performance and reliability. Backed by our customer satisfaction guarantee, you can trust that this product will deliver exceptional value, durability, and ease of use for your business operations. We are committed to providing reliable solutions that optimize your equipment's performance and longevity.
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 Expanding Adapter (Model: 2.03267.53 MTG46) is a robust solution for industrial and machinery applications that require reliable and smooth movement. Designed with high-quality materials and precision engineering, this caster offers an optimal balance between durability, performance, and versatility.
At the heart of this caster is the polyolefin wheel, which is designed for both durability and high-impact resistance. This material ensures that the caster withstands tough environments and performs reliably under heavy loads. With a load capacity of 230 lbs, it is ideal for use with industrial machinery and heavy-duty equipment.
Complementing the polyolefin wheel is the Delrin bearing, which provides a smooth, precise rotation that minimizes wear and tear while optimizing operational efficiency. This bearing ensures that the caster operates with minimal friction, allowing for quick and easy movement even under load.
The caster is equipped with an expanding adapter that fits round tubing with an inside diameter ranging from 1-1/2" to 1-9/16". This adaptable feature makes it an excellent choice for a wide variety of mounting configurations, ensuring easy installation across different equipment types. The mounting height of 4.56 inches ensures compatibility with many industrial setups.
Operating in harsh environments requires equipment that can handle extreme temperature fluctuations. This caster excels in such conditions, with an operating temperature range of -45°F to +180°F, making it suitable for a broad range of indoor and outdoor industrial environments.
Constructed to last, the 3.5" x 1.25" Polyolefin Delrin Bearing Caster is backed by a 3-year warranty, giving you confidence in its longevity and performance. The caster is built to withstand the rigorous demands of industrial and commercial use, making it a reliable addition to your equipment or machinery.
This caster is RoHS compliant and is an NSF component (less thread guards), ensuring that it meets or exceeds the relevant regulatory standards. These certifications further demonstrate its quality and suitability for industrial applications.
This Colson 2.03267.53 MTG46 3.5" x 1.25" Polyolefin Caster – 1-1/2" Tube 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).
$54.00
| 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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