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The 3.5" x 1.25" HI-TECH Delrin Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) is engineered for precision and durability, making it the ideal solution for a variety of industrial and commercial applications. The Delrin bearing ensures smooth and noise-free operation, even under heavy loads, while the expanding adapter makes for quick and easy installation with a secure fit on square tubing. This caster is built to withstand wear and corrosion, ensuring long-term, high-performance use in demanding environments. The compact size and robust design make it perfect for use on carts, machinery, and other industrial equipment requiring smooth mobility.
Our 3.5" x 1.25" HI-TECH Delrin Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) is crafted to meet the highest industrial standards, ensuring reliable and long-lasting performance in all types of professional environments. Every caster undergoes rigorous testing to guarantee superior durability, smooth operation, and corrosion resistance. With our customer satisfaction guarantee, you can trust that this caster will provide excellent value and contribute to the efficiency and longevity of your equipment.
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 Square Tubing Expanding Adapter (MTG51) is designed to meet the rigorous demands of industrial and commercial environments. Combining superior materials and advanced engineering, this caster provides long-lasting performance and reliability in high-demand settings. From its corrosion-resistant zinc finish to its HI-TECH polyurethane wheel, this caster is built to endure heavy loads, extreme temperatures, and challenging working conditions.
This 3.5" x 1.25" HI-TECH Delrin Bearing Caster is an ideal choice for a variety of industrial and commercial uses. Its robust design makes it perfect for:
Engineered for performance, durability, and ease of use, this caster delivers superior results in a variety of industrial applications. The combination of a HI-TECH polyurethane wheel, Delrin bearing, and corrosion-resistant zinc finish ensures reliable operation under demanding conditions. Whether you need to move heavy loads or need a caster that can handle temperature extremes, the 3.5" x 1.25" HI-TECH Delrin Bearing Caster provides the strength, durability, and performance you require for long-term success.
We are confident in the quality and durability of our 3.5" x 1.25" HI-TECH Delrin Bearing Caster, and we stand behind our products with a 3-year warranty. Should you experience any issues, our dedicated customer service team is here to assist you. Trust in a product designed to meet the demands of professionals and ensure your equipment operates smoothly for years to come.
This Colson 2.03267.91 3.5" x 1.25" Delrin Caster – 7/8" to 15/16" 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 |
