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 | 3.5" x 1.25" Side Lock Caster is engineered for superior strength and reliable functionality. Featuring a precision ball bearing and Poly HI-TECH BB wheel, it delivers smooth and easy maneuverability in a wide range of applications. With a 1/2" thread size, this caster ensures secure attachment and
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 3.5" x 1.25" Side Lock Caster with Poly HI-TECH BB Wheel and Precision Ball Bearing is engineered to provide long-lasting durability, smooth performance, and exceptional ease of use. Designed for both industrial and commercial environments, this caster features a versatile locking mechanism, making it an ideal solution for applications that require both stability and mobility.
With its robust Poly HI-TECH BB Wheel, this caster ensures smooth rolling even on rough or uneven surfaces. The high-impact wheel design resists damage, providing a reliable solution for various heavy-duty tasks. Whether you’re moving equipment in factories, warehouses, or medical facilities, this caster offers exceptional performance in any setting.
The precision ball bearing integrated into this caster ensures that it operates with minimal resistance, allowing for smoother and quieter movement. This feature significantly reduces wear and tear on the wheel, extending the lifespan of the caster. Additionally, the side lock mechanism secures the caster in place, preventing unwanted movement when the equipment is stationary—this provides added safety and stability during use.
The 1/2" threaded stem ensures quick and easy installation onto compatible equipment, allowing for a secure attachment that won’t come loose. With its 3.5" x 1.25" wheel size, this caster is designed to offer the perfect balance between maneuverability and stability. The versatile size makes it ideal for use in a variety of industries including medical, industrial, and commercial settings.
This caster is built to handle heavy loads and demanding environments, making it a top choice for machinery and equipment that require frequent movement. Its corrosion-resistant finish ensures reliable performance, even in harsh or humid conditions, so you can count on it for years of use without worrying about rust or degradation.
Colson Casters has a long-standing reputation for providing high-quality mobility solutions across various industries. With a commitment to engineering excellence and customer satisfaction, Colson Casters delivers durable products that you can trust. The 3.5" x 1.25" Side Lock Caster is just one example of their dedication to producing reliable, high-performance products that meet the diverse needs of their customers.
Whether you need a caster for light-duty or heavy-duty applications, the Colson Casters 3.5" x 1.25" Side Lock Caster is the perfect solution for all your mobility needs. Experience smooth, reliable movement with every task and ensure your equipment remains stable when needed most.
Invest in Colson Casters' precision-engineered solutions for your equipment and mobility needs. Order the 3.5" x 1.25" Side Lock Caster with Poly HI-TECH BB Wheel today and enjoy reliable performance, durability, and ease of use. Perfect for any heavy-duty application.
This Colson 2.03254.95 MTG53 3.5" x 1.25" Poly Side Lock Caster 1/2" Thread 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 with a 1-1/2" x 13" plate. 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 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).
$49.00
| Identification | |
| Brand | colson header1 |
| Dimensions & Mounting | |
| Wheel Diameter | 3-1/2" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 4.56" |
| Plate Size | 1-1/2" x 13" |
| Mount Style | Plate |
| Load & Performance | |
| Wheel Capacity | 250 lbs |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Frame Material | Zinc Plated Steel |
Search
