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 Colson Casters 4" x 1.25" Polyolefin Delrin Bearing Caster with Expanding Adapter offers superior mobility solutions for a variety of industrial and commercial applications. Equipped with a durable Polyolefin wheel, this caster is engineered for smooth and quiet movement while reducing wear and tear over time.
Featuring Delrin bearings, this caster ensures high-performance functionality, making it ideal for environments that require precision and strength. The 1-3/8" to 1-7/16" inside diameter round tubing expanding adapter guarantees a secure and stable fit, providing versatility in different setups.
Whether you need a caster for heavy-duty equipment, machinery, or mobile carts, this product delivers the reliability and durability needed to keep your operations running smoothly. The 4" diameter and 1.25" width offer excellent load-bearing capacity, making it the go-to choice for demanding environments.
Designed with user experience in mind, the caster provides easy installation and a long service life. Trust Colson Casters to elevate your mobility solutions with this high-quality, versatile product.
Upgrade your equipment and improve mobility with the Colson Casters 4" Polyolefin Caster. Built for performance and durability, it is the ideal solution for your business needs. Get yours today and experience the difference in efficiency.
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.
Designed to meet the demands of industrial, commercial, and medical environments, the Colson Casters 4" Polyolefin Delrin Bearing Caster offers outstanding mobility solutions. Whether you're outfitting a warehouse, hospital, or factory, this caster guarantees reliable performance, durability, and smooth operation, making it the ideal choice for a wide range of applications.
One of the standout features of this caster is its Polyolefin wheel, which ensures quiet and efficient movement across various surfaces. This material is not only durable but also resists wear and tear, making it an excellent choice for high-traffic areas. Whether you are moving heavy equipment, machinery, or mobile carts, the Polyolefin wheel ensures a smooth and seamless experience.
The Delrin bearing further enhances this caster’s performance by offering high load capacity and reduced friction. Known for its strength and long-lasting reliability, Delrin is a high-quality material that performs well in demanding environments. Whether you are navigating rough floors or sensitive surfaces, this bearing ensures that the caster can handle heavy loads with minimal strain.
To ensure a secure fit with a wide range of equipment, this caster comes with an expanding adapter that fits round tubing with inside diameters ranging from 1-3/8" to 1-7/16". This flexibility allows you to use this caster in various setups, making it an incredibly versatile choice for your mobility needs.
The caster’s 4" diameter and 1.25" width provide an optimal balance between load capacity and maneuverability. Its design ensures an even distribution of weight, making it suitable for heavy-duty tasks while maintaining the ability to easily maneuver and transport items. Whether used for equipment, carts, or machinery, this caster excels in both capacity and agility.
Applications: The Colson Casters 4" Polyolefin Delrin Bearing Caster is versatile enough to handle a range of industrial and commercial applications. It’s perfect for use in warehouses, factories, hospitals, and any setting where heavy-duty casters are required. With its easy installation and low maintenance design, it helps reduce downtime and keeps operations running smoothly.
Benefits: This caster delivers several benefits, including:
At Colson Casters, we are committed to providing top-tier mobility solutions that enhance efficiency, reliability, and user experience. Trusted by industries worldwide, our products are engineered for high performance, ensuring your equipment operates smoothly, no matter the environment.
Order now and experience the superior quality, durability, and ease of use that come with Colson Casters products. Trust us to meet your mobility needs with innovative solutions that prioritize performance and longevity.
This Colson 2.04267.53 MTG45 4" x 1.25" Polyolefin Caster – 1-3/8" Tube is rated to 275 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 5.25". 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 | 4" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 5.25" |
| Mount Style | Plate |
| Load & Performance | |
| Wheel Capacity | 275 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
4" x 1.25" Polyurethane Swivel Caster – 325 lb | 2.5" x 3.625" Top Plate | CasterHQ
4" x 1-1/4" · 260 lbs
$14
Your selection is highlighted. Every option shares its wheel size and mount; a Direct fit tag means the same mounting plate — a drop-in replacement. Step up or down in load rating, all in-stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 250 lbsLighter duty | 4" × 1-1/4"Gray Rubber | Swivel with Total Lock Brake + brake | — | $24.00 | View → | |
| 260 lbsLighter duty | 4" × 1-1/4"Polyurethane | Swivel | 4-1/8" | $14.00 | View → | |
| 275 lbs | 4" × 1-1/4"Polyolefin | — | 5.25" | $55.00 | Viewing | |
| 300 lbsHeavier duty | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $19.00 | View → | |
| 300 lbsHeavier duty | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $19.00 | View → |



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