Technical Specifications













Description
Black finished casters are designed with a semi-gloss black coating, not only enhancing their visual appeal but also providing protection against corrosion.
This stem caster can take every stem choice you see shown in the options menu.
Combination Wheel Brake and Swivel Lock – This total lock brake simultaneously locks the wheel and the swivel. One step on the activating pedal instantly locks the entire caster holding the equipment firmly in place. One step on the release pedal frees the swivel and wheel.
Photo shown is 4″ caster.
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.
TYPES OF STEMS FOR THIS MODEL
NO STEM:
- HK1/2 – Single 1/2″ Hole For Your Own 1/2″ Diameter Bolt
THREADED STEMS:
- TS61 – Threaded Stem 3/8″-16 x 1″ Long
- TS22 – Threaded Stem 1/2″-13 x 1-1/2″ Long
- TS26N – Threaded Stem 1/2″-13 x 2-3/4″ Long
- TS-S1 – Threaded Stem 1/2″-13 x 4″ Long
- TS-S2 – Threaded Stem 5/8″-11 x 4″ Long
- TS-S3 – Threaded Stem 3/4″-10 x 6″ Long
- TS-S7 – Threaded Stem 3/4″-10 x 4″ Long
GRIP-RING STEMS + SQUARE AND ROUND METAL STEMS:
- 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)
- RD3/4 – 3/4″ Round – 3 Cross Holes
- SQ3/4 – 3/4″ 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
Polyolefin Caster Wheels from Caster City
Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers, forming a one-piece solid sanitary design that prioritizes durability and hygiene. These wheels are available with a plain bore, precision sealed ball bearings, roller bearings, or Delrin bearings for smooth operation across various light to medium-duty applications. As a cost-effective and lightweight option, polyolefin wheels are hard, non-marking, and non-conductive, offering superior resistance to water, chemicals, solvents, acids, grease, oils, and gasoline. Their unique composition ensures excellent abrasion resistance and impact absorption, making them a reliable choice for environments where sanitation and floor protection are essential.
Polyolefin Caster Wheels are particularly suited for wet and corrosive applications due to their outstanding resistance to most commonly encountered liquids, ensuring long-lasting performance. Their slightly crowned tread enhances rollability and maneuverability, and they do not develop flat spots when parked for extended periods. With a hardness of 65–70 Shore D, these wheels provide floor protection, low noise, and easy cleaning, while remaining impervious to sterilization processes. However, they can become brittle in cold, dry environments like refrigerated storerooms and should not be used in freezers or heat applications above 180°F during intermittent usage, such as rack washers.
Ideal for bakeries, food processing, dairies, meat packaging, laundries, supermarkets, warehouses, manufacturing plants, cleanrooms, medical facilities, and offices, these wheels excel where chemical resistance and non-marking performance are critical. Capable of handling impacts and loads up to 900 lbs per wheel depending on size, they offer economical mobility in harsh conditions. For reliable, sanitary, and floor-friendly caster solutions tailored to your needs, contact Caster City to explore custom configurations of our durable Polyolefin Caster Wheels.
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
















