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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The Colson 2.04267.445-MTG55 is a 4" x 1-1" gray rubber plate caster rated 300 lbs per caster, mounted on a standard plate. It is built for industrial use where part-number-exact specification, capacity, and bearing life take priority. The 4" diameter rolls cleanly over expansion joints and floor seams smaller wheels stall on. In stock at CasterHQ Mansfield, TX with same-day shipping on quantities of 1-100 placed before 2:00 PM Central. BAA / TAA documentation available on request for federal, defense, and aerospace procurement.
I spec Colson on standard-duty industrial carts where bearing life and quiet roll matter more than maximum capacity. The 2.04267.445-MTG55 earns its place when smooth-roll quiet operation and floor protection are the controlling spec. Pair 4" on the steered axle with a matching rigid version on the trailing axle for true four-position cart kinematics. If your floor has expansion joints over 1/2" wide, step up to a larger wheel diameter.
Colson encodes its part numbers by series, wheel material, wheel diameter, plate size, bearing type, and mount style. The 2.04267.445-MTG55 is decoded by your CasterHQ engineer at order time — call us at 844-439-4335 for a full breakdown.
300 lbs per caster dynamic. On a 4-caster cart with even load distribution and a 1.3x safety factor for moving loads, that yields the rated working capacity per cart.
Yes for cast iron and steel wheels. 4" diameter rolls over expansion joints and seams cleanly. For polished or epoxy floors, ask us about poly-on-iron or thermoplastic options.
Colson's industrial casters are USA-manufactured. We provide BAA/TAA-compliant Country-of-Origin documentation on request for federal procurement, typical turnaround under 24 hours.
In stock at CasterHQ Mansfield, TX. Quantities 1-100 ship same-day for orders placed before 2:00 PM Central. Larger quantities ship within 1-2 business days.
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 Colson Casters 4" x 1.25" Performa Ball Bearing Caster with Expanding Adapter (MTG55) offers a robust, high-performance solution for a wide range of industrial applications. Designed with durability, precision, and ease of use in mind, this caster is ideal for equipment that requires smooth maneuverability and heavy-duty load handling.
Versatile Expanding Adapter: One of the standout features of this caster is its expanding adapter, which ensures a secure and easy installation on square tubing frames with an inside diameter of 1-3/8" to 1-7/16". This feature makes it highly adaptable to a variety of applications, whether you're upgrading industrial carts, medical equipment, or furniture with square tubing.
Durability and Performance: Equipped with a Performa rubber wheel, this caster is designed for industrial environments where durability is paramount. The Ball bearing minimizes friction, ensuring smooth movement while extending the life of the caster. The 4" x 1.25" wheel size is optimized for handling heavy-duty loads while providing exceptional maneuverability, reducing strain on operators.
Reliability and Efficiency: Colson Casters is known for its commitment to providing reliable, high-quality mobility solutions. The MTG55 model is engineered to withstand the rigorous demands of industrial and commercial environments. Its design minimizes downtime, ensuring that your equipment stays mobile and operational for longer periods, even under heavy use.
Reduced Noise and Vibration: The Performa rubber wheel also excels in reducing noise and vibration during use, which is particularly beneficial in environments where noise levels need to be kept to a minimum. This feature is highly valued in industries such as healthcare and manufacturing, where a quieter workspace can improve overall productivity and operator comfort.
Ideal Applications: This caster is perfect for a wide variety of applications, including:
Why Choose Colson Casters? Colson Casters is a trusted brand known for its expertise in crafting high-quality mobility solutions. By choosing Colson Casters, you're investing in a product designed to offer superior performance, reliability, and ease of use. This caster is backed by the brand's commitment to innovation and excellence, ensuring that it meets the highest standards of industrial-grade mobility.
Enhance Your Operations: Upgrade your industrial equipment with the Colson Casters 4" x 1.25" Performa Ball Bearing Caster with Expanding Adapter today. Whether you're enhancing existing carts, improving medical equipment mobility, or upgrading furniture, this caster offers the reliability and performance you need to keep operations running smoothly.
This Colson 2.04267.445-MTG55 4" x 1-1" Gray Rubber Caster — 300 lb is rated to 300 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 Gray Rubber wheel with a 1-1/4" tread width. Rubber absorbs shock and protects floors, and runs quietly, which suits noise-sensitive and light-to-medium duty use.
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 Gray Rubber wheel performs best on rough, uneven, or outdoor surfaces such as asphalt, gravel, and cracked concrete. 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).
$67.00
| 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 | 300 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Gray Rubber |
| Wheel Core Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
4" x 1-1/4" Polyurethane Swivel Caster – 300 lb | 3-1/8" x 4-1/8" Plate | CasterHQ
4" x 1-1/4" · 300 lbs
$19
View all 4′ x 1-1/4′ casters & wheels →
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 → | |
| 300 lbs | 4" × 1-1/4"Gray Rubber | — | 5.25" | $67.00 | Viewing | |
| 300 lbsSame capacity | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $19.00 | View → | |
| 300 lbsSame capacity | 4" × 1-1/4"Polyurethane | Swivel | 5-1/8" | $19.00 | View → |



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