Technical Specifications































Description
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.
Stem Caster Model 3 Swivel caster frames are made from stamped steel that is plated in zinc for enhanced corrosion resistance. This stem swivel caster is built with a ⅜” axle bolt and the swivel raceways are held together by a ½” rivet. Stem Caster Model 3 caster brackets have two rows of ball bearings rotating on raceways for smoother swiveling. There is a solid cover over the swivel raceways to shield them from dirt and dust. This stem caster performs best if you limit the load to no more than 1000 lbs on a set of 4 model 3 casters. Stem Caster Model 3 will amaze you at their performance!
TYPES OF STEMS FOR THIS MODEL
NO STEM:
- HK1/2 – Single 1/2″ Hole For Your Own 1/2″ Diameter Bolt
THREADED STEMS:
- TS21 – Threaded Stem 1/2″-13 x 1″ Long
- TS22 – Threaded Stem 1/2″-13 x 1-1/2″ Long
- TS23 – Threaded Stem 1/2″-13 x 2″ Long
- TS61 – Threaded Stem 3/8″-16 x 1″ Long
- TS62 – Threaded Stem 3/8″-16 x 1-1/2″ Long
- TS26N – Threaded Stem 1/2″-13 x 2-3/4″ Long
- TS6 – Threaded Stem 5/8″-11 x 3-3/4″ Long
- TS3/4 – Threaded Stem 3/4″-10 x 1-3/4″ Long
- TSC1 – Threaded Stem 1/2″-13 x 4″ Long
- TSC2 – Threaded Stem 5/8″-11 x 4″ Long
- TSC3 – Threaded Stem 3/4″-10 x 6″ Long
GRIP-RING STEMS + SQUARE AND ROUND METAL STEMS:
- RD3/4 – 3/4″ x 2″ Round Metal Stem with 3 Cross Drilled Holes
- GR91 – Grip Ring Stem 7/16″ Diameter x 1-3/8″ Long
- GR95 – Grip Ring Stem .846″ x 2-3/16″ (For 7/8″ Inner Diameter “Metro” Shelving)
- SQ7/8-GR – 7/8″ Plain Square Grip Ring (To Drill Your Own Cross-holes)
- SQ3/4 – 3/4″ Square – 3 Cross Holes
- SQ7/8 – 7/8″ Square – 3 Cross Holes
EXPANDING RUBBER STEMS:
- ER9 – Expanding Rubber for 3/4″ Inner Diameter
- ER27 – Expanding Rubber for 7/8″ Inner Diameter
- ER28 – Expanding Rubber for 1″ Inner Diameter
- ER29 – Expanding Rubber for 1-1/8″ Inner Diameter
- ER17 – Expanding Rubber for 1-1/4″ Inner Diameter
- ER25 – Expanding Rubber for 1-3/8″ Inner Diameter
- ER26 – Expanding Rubber for 1-1/2″ Inner Diameter
- ER21 – Expanding Rubber for 1-13/16″ Inner Diameter
FAQ
What is the Stem Caster Model 3 made of?
The Stem Caster Model 3 is constructed with stamped steel and bright zinc plated for corrosion resistance. It’s also available in Stainless Steel (Model 3) and Economy Stainless Steel (Model K3), both of which are NSF listed and RoHS compliant. The stainless steel version is buffed to a smooth reflective surface, and the economy version skips the dust cap and grease fitting for cost efficiency.
What are the mounting specifications for the Stem Caster Model 3?
This caster uses a stem mounting system, designed for a secure fit with a ⅜” diameter axle and a ½” diameter rivet holding the swivel caster together. Specific stem dimensions depend on your application, so check with Caster City for compatibility with your equipment.
What kind of wheels does the Stem Caster Model 3 use?
It features wheels with tread widths of 1-¼” or 1-½”. Multiple wheel options are available to suit different surfaces and load requirements. Contact Caster City for specific wheel material choices.
How durable is the Stem Caster Model 3?
The caster is built with two ball bearings on hardened raceways to ensure long life. The zinc-plated version includes a metal dust cap to protect the swivel raceways from dirt and dust. The stainless steel version adds two high-temperature white seals (rated -20°F to 450°F) and a grease fitting on the dust cover and axle for added durability.
Is the Stem Caster Model 3 suitable for high-temperature environments?
Yes, the stainless steel version of the Stem Caster Model 3 is designed with high-temperature white seals that can handle temperatures from -20°F to 450°F, making it ideal for demanding environments like food service or industrial settings.
What’s the difference between the Stainless Steel and Economy Stainless Steel versions?
The Stainless Steel Stem Caster Model 3 (S304 stainless steel) includes high-temperature seals, a grease fitting on the dust cover and axle, and a buffed reflective finish. The Economy Stainless Steel Model K3 is also made of S304 stainless steel but omits the dust cap and grease fitting for a more budget-friendly option while maintaining NSF listing and RoHS compliance.
Is the Stem Caster Model 3 NSF listed?
Yes, both the zinc-plated and stainless steel versions (including the Economy Model K3) are NSF listed, making them suitable for food service and other sanitary applications.
Can I use the Stem Caster Model 3 for heavy loads?
The Stem Caster Model 3 is designed for institutional use with robust construction, but load capacity depends on the specific wheel and stem configuration. Check with Caster City for load ratings based on your chosen wheel type and application.
Does the Stem Caster Model 3 come with a brake option?
Yes, multiple brake options are available for the Stem Caster Model 3. Contact Caster City to discuss which brake type best suits your needs.
How does the Stem Caster Model 3 compare to the Plate Caster Model 3?
The Stem Caster Model 3 shares the same construction, wheel options, and durability features as the Plate Caster Model 3 but uses a stem mount instead of a 2-3/8” x 3-5/8” mounting plate. The stem design is ideal for equipment where a plate mount isn’t feasible. Both are available in zinc-plated, stainless steel, and economy stainless steel versions, with the same NSF listing and RoHS compliance.
What applications can I use the Stem Caster Model 3 with?
Material Handling & Stocking
- Moving dollies for warehouse supplies
- Stocking carts for libraries/schools/offices
- Utility carts for general transport
Medical & Laboratory
- Medical equipment carts for hospitals/clinics
- Lab equipment stands for science/animal labs
- Diagnostic equipment carts
- Hospital bedside carts
- Surgical carts for instruments
- Pharmacy carts for medications
Food Service & Kitchen
- Food service carts for meals
- Bakery equipment carts
- Kitchen equipment stands for appliances
- Beverage carts for dining halls
- Mobile prep tables
Office & IT
- Office equipment stands for printers/copiers
- Computer stands for workstations
- Computer room carts for servers
- Mobile filing cabinets
- AV carts for projectors/monitors
General Institutional
- Hospital utility carts for linens/waste
- School carts for books/art supplies
- Pharmaceutical manufacturing carts
- Maintenance carts for tools
- Laundry carts for linens
- Library carts for books/media
Workshop & Industrial
- Worktables for tools/materials
- Tablesaws on mobile bases
- Tool carts for mechanics/technicians
- Assembly line carts for training
- Welding carts for trade schools
Specialized Applications
- Janitorial carts for cleaning supplies
- Classroom carts for teaching aids
- Mailroom carts for sorting mail
- Audio-visual carts for sound equipment
- Examination table carts for clinics
- Mobile storage for archival materials
Corrosion-Resistant (Model K3A)
- Marine carts for coastal facilities
- Wet environment carts for sterilization rooms
- Corrosive environment carts for pharma
- Outdoor utility carts for grounds maintenance
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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