3″ Ultra Premium Orange Polyurethane w/ Crown Tread – K3A Plain Swivel Caster
$39.47
Technical Specifications




















- Description
- FAQ
- Application Use
- Reviews
- CASTER CITY GUARANTEE
- Measurement Conversion Table
- Articles and How to Guides
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Description
Swivel Radius for 3 inch PTB brake = 4-3/8″ ± 1/8″
This is the matching plain swivel caster to the total locking caster , Part Number : K3AUXY3x1.25-ML
The UXY wheel features liquid cast polyurethane molded onto a precision-machined aluminum hub, offering exceptional durability and performance in a compact 1.25″ wide design. Available in 3″, 4″, and 5″ diameter options, this institutional-sized wheel provides smooth, quiet operation while maintaining impressive load capacity. The liquid cast polyurethane tread delivers superior shock absorption and roll-ability compared to injection-molded alternatives, making it ideal for applications requiring reliable performance and floor protection, and most importantly heavy applications that move infrequently. Each wheel comes equipped with dual precision sealed ball bearings to ensure consistent, maintenance-free operation for many years.
The UXY wheel’s unique liquid-cast polyurethane formulation delivers exceptional performance through its rapid rebound characteristics, significantly reducing the force (known as draw bar pull) required to initiate and maintain movement under load. This rapid rebound action allows the wheel to quickly recover from compression, maintaining optimal contact with the floor surface while minimizing rolling resistance. Unlike conventional wheels that may deform and create increased drag under heavy loads, the UXY’s specialized compound actively assists movement by converting potential energy from compression into forward momentum. This dynamic response not only reduces operator fatigue but also ensures consistent performance across varying load conditions, making it an ideal choice for applications where ergonomic considerations are paramount.
Plate Caster Model 3 is made using a stamped steel construction and is bright zinc plated for corrosion resistance. The mounting plate is 2 3/8” x 3 5/8” and the hole pattern is slotted to: 1 3/4” x 2 7/8” – 3” and is designed to use a mounting bolt size of 5/16”. This plate caster uses a ⅜” diameter axle and the swivel caster is held together by a 1⁄2” diameter rivet. This institutional plate caster is constructed with two ball bearings on hardened raceways to ensure life of the caster. There is a metal dust cap protecting the swivel raceways to shield them from dirt and dust. Features wheels with 1-¼” and 1-1⁄2” tread widths. This Zinc Plated caster is NSF listed.
Shown in photo with 5″ wheel.
FAQ
What is the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange, and what’s it used for?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange is our zinc-plated institutional caster, a light duty industrial caster shipped from Texas, Ohio, or Washington, designed for manually moved applications where cargo needs to remain stationary, with a capacity of 350 lbs per caster for all sizes, allowing up to 1200 lbs on a set of four. It uses 1-¼” wide “UXY” Self-Energizing Ergonomic Polyurethane – Crown – Orange wheels in 3”, 4”, and 5” diameters, featuring a unique nylon brake that locks the swivel bearing and wheel simultaneously when the black nylon pedal is used, recommended by Caster City for its ease of use, easy engagement and disengagement, and benefits for users engaging it with the tip of their shoe—reducing resistance, increasing usage likelihood, and minimizing shoe scratches. This total lock caster is a very high quality industrial-grade product made for small sizes, rare and unusual, ideal for heavy applications that move infrequently, such as institutional settings like schools, hospitals, or warehouses, ensuring secure footing and keeping equipment immobile, with a 5” swivel radius for all sizes and capacity ratings based on weight directly on the swivel bearing. The top plate measures 2-3/8” x 3-5/8” with 5/16” mounting bolts and 1-3/4” x 2-7/8” bolt hole spacing—consult us at sales@castercity.com or 800-501-3808 for plate mount guidance.
What’s the capacity of the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange has a capacity of 350 lbs per caster for all sizes, allowing up to 1200 lbs on a set of four, with ratings based on weight directly on the swivel bearing—consult us at sales@castercity.com or 800-501-3808 for guidance.
What wheel sizes are available for the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange?
The Total Locking Plate Caster Model K3A uses 1-¼” wide “UXY” Self-Energizing Ergonomic Polyurethane – Crown – Orange wheels in 3”, 4”, and 5” diameters, with overall heights of 4-1/8” for the 3” wheel, 5-1/8” for the 4” wheel, and 6-1/4” for the 5” wheel, and a 5” swivel radius for all sizes.
What’s the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange used for?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange is ideal for heavy applications that move infrequently, such as institutional settings like schools, hospitals, warehouses, manufacturing plants, cleanrooms, medical facilities, research centers, educational institutions, and aerospace, where a plate mount caster moves and keeps equipment stationary.
What brake feature does the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange have?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange features a unique nylon brake that locks the swivel bearing and wheel simultaneously when the black nylon pedal is used, recommended by Caster City for its ease of use.
Why is the nylon brake on the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange beneficial?
The nylon brake on the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange, activated by the black nylon pedal, is recommended by Caster City for its easy engagement and disengagement, reducing resistance and minimizing shoe scratches when users engage it with the tip of their shoe, increasing usage likelihood.
What material is the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange made from?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange is constructed from stamped steel with a zinc-plated frame, paired with 1-¼” wide “UXY” Self-Energizing Ergonomic Polyurethane – Crown – Orange wheels featuring liquid cast polyurethane with an 80A durometer, molded onto a precision-machined aluminum hub.
What applications are best for the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange is perfect for heavy applications that move infrequently, such as institutional settings like schools, hospitals, warehouses, manufacturing plants, cleanrooms, medical facilities, research centers, educational institutions, aerospace, pharmaceutical prep stations, maintenance tool racks, laundry sorting tables, and library book carts, where a plate mount caster moves and keeps equipment stationary with superior shock absorption and roll-ability.
What bearing type comes with the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange comes standard with Precision Sealed Ball Bearings, ensuring consistent, maintenance-free operation for many years—contact us at 800-501-3808 or sales@castercity.com for additional details.
Can the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange roll on rough floors?
No, the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange is designed for smooth floors only—rough floors or obstructions will damage this zinc-plated caster and shorten its life.
Are the Total Locking Plate Casters Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange good for standing loads?
The Total Locking Plate Casters Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange are not suited for prolonged standing loads—consult us at sales@castercity.com or 800-501-3808 if exceeding 1200 lbs on a set of four.
How do I protect the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange from damage?
Keep the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange free from shock, overloading beyond 350 lbs per caster, abuse, obstructions, poor floors, impact, and exposure to excessive heat, which can affect the caster’s performance and the zinc-plated construction, especially noting its unsuitability for high temperatures due to the nylon pedal.
Do the Total Locking Plate Casters Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange leave marks on floors?
No, the 1-¼” wide “UXY” Self-Energizing Ergonomic Polyurethane – Crown – Orange wheels are non-marking, designed to protect floor surfaces in institutional settings.
Why is the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange good for institutional use?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange is good for institutional use because its total locking mechanism provides a secure footing and keeps cargo stationary, with the liquid cast polyurethane offering a very high quality industrial-grade product made for small sizes, rare and unusual, with superior shock absorption and roll-ability for heavy, infrequently moved loads.
How does the nylon brake work on the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange?
The nylon brake on the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange locks the swivel bearing and wheel at the same time when the black nylon pedal is depressed, immobilizing the caster for stationary applications.
Why is the total locking mechanism on the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange important for safety?
The total locking mechanism on the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange prevents all caster movement when the black nylon pedal is used, ensuring safety during tasks where people lean against the worktable in institutional settings.
What makes the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange a trusted safety feature?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange’s total lock braking mechanism, activated by the black nylon pedal, immobilizes the swivel bearing and wheel, providing a trusted safety feature for stationary applications.
How does the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange enhance stability?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange enhances stability by locking the caster wheel and swivel bearing with the one-step black nylon pedal, keeping heavy, infrequently moved equipment firmly in place.
What options are available for the Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange?
The Total Locking Plate Caster Model K3A with UXY Self-Energizing Ergonomic Polyurethane – Crown – Orange offers options including a LA – lube axle for certain wheels, a high volume item for Caster City—contact us for details.
What types of wheels are available for the Total Locking Plate Caster Model K3A?
The Stem Caster Model K3A offers a wide selection of wheels with tread widths of 1.25” or 1.5”, available in various materials suitable for institutional equipment. Wheel types include:
- RHB (Blue High Capacity Soft Rubber)
- RH (Gray High Capacity Soft Rubber)
- Gray Soft Rubber
- Super Soft Gray Soft Rubber
- High Capacity Blue Rubber
- High Capacity Rubber
- Maroon/Gray Premium Polyurethane
- Gray Rubber (Crown)
- Gray Polyurethane
- Black/Gray Polyurethane
- Blue/Gray Polyurethane
- Red/Gray Polyurethane
- Gray Polyurethane (Crown)
- Ultra Premium Polyurethane Orange
- All Polyurethane
- Blue Polyurethane on Aluminum
- Polyolefin – Black
- Polyolefin – Black Donut
- Nylon (White)
- Phenolic
- High Temp Moist Heat – Fiberglass-Nylon
- High Temp Phenolic – Fiberglas
Key Features
- Construction: Stamped steel with zinc-plated frame
- Weight Capacity: 350 lbs per caster for all sizes, recommended only for manually moved heavy applications that move infrequently, not to exceed 1200 lbs on a set of four
- Wheel Sizes: 1-¼” wide “UXY” Self-Energizing Ergonomic Polyurethane – Crown – Orange wheels in 3”, 4”, and 5” diameters
- Bearings: Precision Sealed Ball Bearings (standard)
- Brake Options: Total locking brake with black nylon pedal
- Fastener Type: 2-3/8” x 3-5/8” top plate with 5/16” mounting bolts and 1-3/4” x 2-7/8” bolt hole spacing, with LA – lube axle option for certain wheels
- Overall Heights: 4-1/8” (3” wheel), 5-1/8” (4” wheel), 6-1/4” (5” wheel)
- Swivel Radius: 5” for all sizes with total locking brake
- Applications: Schools, hospitals, warehouses, manufacturing plants, cleanrooms, medical facilities, research centers, educational institutions, aerospace, pharmaceutical prep stations, maintenance tool racks, library book carts
Research Updates (1:31 PM PDT, Wednesday, June 18, 2025)
Industry Trends: Recent online discussions show a rising demand for total locking plate casters with ergonomic polyurethane wheels for heavy, infrequent use, including aerospace applications, aligning with the K3A’s “UXY” wheel design.
Customer Focus: Users value the 80A durometer, shock absorption, rapid rebound, and total locking feature, appreciating its very high quality industrial-grade design for small sizes, rare and unusual.
Technical Insights: The zinc-plated construction and nylon brake enhance durability and safety, complemented by the “UXY” wheel’s precision sealed bearings and aluminum hub.
Application Use
Application Use for Total Locking K3A Casters
- Material Handling and Stocking Carts
- Moving dollies for transporting supplies in warehouses or institutional facilities.
- Stocking carts for restocking shelves in libraries, schools, or offices.
- Utility carts for general-purpose transport in institutional environments.
- Medical and Laboratory Equipment
- Medical equipment carts for transporting tools in hospitals or clinics.
- Laboratory equipment stands in science and animal labs for secure positioning.
- Electronic and diagnostic equipment carts for stable mobility during use.
- Hospital bedside carts for patient care items, ensuring immobility during use.
- Surgical carts for holding instruments, locked in place during procedures.
- Pharmacy carts for dispensing medications in pharmaceutical settings.
- Food Service and Kitchen Equipment
- Food service carts for delivering meals in hospitals or cafeterias.
- Bakery equipment carts for moving dough or baked goods in institutional kitchens.
- Kitchen equipment stands for appliances like mixers, ensuring stability during operation.
- Beverage carts for serving drinks in dining halls or catering setups.
- Prep tables on wheels for food preparation, locked for safety during use.
- Office and IT Equipment
- Office equipment stands for printers, copiers, or scanners in institutional offices.
- Computer equipment stands for workstations in computer labs or offices.
- Computer room equipment carts for servers or networking devices, ensuring immobility.
- Mobile filing cabinets for secure document storage and transport in offices.
- AV carts for projectors or monitors in conference rooms or classrooms.
- General Institutional Equipment
- Hospital utility carts for linens, cleaning supplies, or medical waste.
- School equipment carts for moving supplies like books or art materials.
- Pharmaceutical manufacturing carts for transporting materials in cleanroom environments.
- Maintenance carts for tools and repair supplies in institutional facilities.
- Laundry carts in hospitals or dormitories for transporting linens.
- Library carts for moving books or media in educational institutions.
- Workshop and Industrial Settings
- Worktables in workshops for holding tools or materials, locked during use.
- Tablesaws on mobile bases for woodworking in vocational schools or workshops.
- Tool carts for mechanics or technicians in institutional maintenance shops.
- Assembly line carts for small-scale manufacturing in training facilities.
- Welding carts for holding equipment in trade schools or workshops.
- Specialized Institutional Applications
- Janitorial carts for cleaning supplies in hospitals, schools, or offices.
- Classroom carts for mobile teaching aids like whiteboards or projectors.
- Mailroom carts for sorting and distributing mail in offices or universities.
- Audio-visual carts for sound equipment in auditoriums or theaters.
- Examination table carts in clinics for patient care setups.
- Mobile storage units for archival materials in museums or libraries.
- Corrosion-Resistant Environments (Model K3A Specific)
- Marine application carts for coastal institutional facilities.
- Wet environment carts in hospital sterilization rooms or labs.
- Corrosive environment carts in pharmaceutical manufacturing with chemical exposure.
- Outdoor utility carts for institutional grounds maintenance in harsh weather.
Our #1 goal is to help you find the best caster and wheels for your needs. If you need help finding the right casters, contact our team of professionals. You can also customize many of our casters with a variety of options such as swivel locks, wheel brakes and zerk fittings. We ship our products from assembly plants in Georgia, Pennsylvania, Virginia, Texas, Nevada and Canada. Whether you’re a one-man shop or a global giant, we can provide you with: We specialize in Business to Business, however, consumer orders are gladly accepted and we can provide you with:
- Fastest Lead Time in the Industry
- Caster performance data.
- Comparative data.
- Customized caster solutions.
- Help with caster solutions.
- Case studies by industry or application.
- Manufacturer and Distributor of over $25 million dollars in Finished Component Parts
- Majority of Orders Processed and Shipped in 2 Days or Less


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October 14, 2025











