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3″ Black Polyolefin Wheel – K3A R
$15.30
In Stock
Please select any add ons you require for your caster and if you are selecting multiple option types, add all of the quantity for the first choice and then make your selections for the second, third, fourth, etc… choices. (Example: 2 With Brakes and 2 Without Brakes)
Technical Specifications
Wheel Diameter
3
Caster City Recommendation
Ollie Recommends!
Non-Marking
Yes
Wheel Width
1 1/4
Wheel Bearing
Ball
Maximum Capacity (lbs)
250 lbs
Overall Height
4 1/8"
Weight
lbs
Weight
1.75 lbs
- Description
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Description
3″ Black Donut Polyolefin Wheel. Ball Bearings in the Wheel. Shown with 5″ wheel. This plate caster K3A is made from stamped steel that is zinc plated for corrosion resistance. This rigid caster uses a ⅜” diameter axle. This caster’s larger plate size makes it easier to fabricate with, which is it’s primary selling point. This plate caster is not intended to carry more than 1200 lbs of weight on four swivel casters.
Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers forming a one piece solid sanitary design. These Polyolefin wheels are especially suited for wet and corrosive applications. They are very resistant to most commonly encountered liquids. Polyolefin wheels have a lower capacity and a more limited temperature range than Nylon wheels. In a cold dry environment, such as a refrigerated store room, Polyolefin wheels may become brittle. They should not be used in a freezer or a heat application above 180°F intermittent usage, such as a rack washer.
This donut shaped wheel comes with sealed ball bearings in the wheel. It’s tread shape enables it to change directions much more easily.
*video shown is with the 5″ Wheel* For more information and help placing an order, give us a call at 800-501-3808.
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.
FAQ
What is the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel, and what’s it used for?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel 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 4” and 5” wheels (250 lbs for the 3” wheel), allowing up to 1200 lbs on a set of four. It uses 1-¼” wide “PB” Polyolefin 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 ideal for standing loads that move infrequently, such as institutional settings like schools, hospitals, warehouses, food service areas, medical labs, research facilities, educational classrooms, pharmaceutical prep stations, kitchen workstations, maintenance tool racks, laundry sorting tables, and library book carts, 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 PB Polyolefin Wheel?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel has a capacity of 350 lbs per caster for 4” and 5” wheels (250 lbs for the 3” wheel), 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 PB Polyolefin Wheel?
The Total Locking Plate Caster Model K3A uses 1-¼” wide “PB” Polyolefin 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 PB Polyolefin Wheel used for?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel is ideal for standing loads that move infrequently, such as institutional settings like schools, hospitals, warehouses, food service areas, medical labs, research facilities, educational classrooms, pharmaceutical prep stations, kitchen workstations, maintenance tool racks, laundry sorting tables, and library book carts, where a plate mount caster moves and keeps equipment stationary.
What brake feature does the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel have?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel 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 PB Polyolefin Wheel beneficial?
The nylon brake on the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel, 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 PB Polyolefin Wheel made from?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel is constructed from stamped steel with a zinc-plated frame, paired with 1-¼” wide “PB” Polyolefin wheels injection molded from a blend of thermoplastic polymers in a one-piece solid sanitary design, featuring a slightly crowned tread.
What applications are best for the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel is perfect for institutional applications like schools, hospitals, warehouses, food service areas, medical labs, research facilities, educational classrooms, pharmaceutical prep stations, kitchen workstations, maintenance tool racks, laundry sorting tables, and library book carts, where a plate mount caster moves and keeps equipment stationary, benefiting from its resistance to most common liquids and suitability for washdowns.
What bearing type comes with the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel comes standard with Precision Sealed Ball Bearings or plain bore options—contact us at 800-501-3808 or sales@castercity.com for additional details.
Can the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel roll on rough floors?
No, the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel is designed for smooth floors only—avoid use on rough floors, obstructions, or poor surfaces, which can damage this zinc-plated caster and shorten its life.
Are the Total Locking Plate Casters Model K3A with PB Polyolefin Wheel good for standing loads?
The Total Locking Plate Casters Model K3A with PB Polyolefin Wheel are an inexpensive, effective choice for standing loads that move infrequently—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 PB Polyolefin Wheel from damage?
Keep the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel free from shock, overloading beyond 350 lbs per caster (250 lbs for 3” wheel), abuse, obstructions, poor floors, impact, and exposure to excessive heat or chemicals beyond its limited temperature range, 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 PB Polyolefin Wheel leave marks on floors?
No, the 1-¼” wide “PB” Polyolefin wheels are non-marking, designed to protect floor surfaces in institutional settings.
Why is the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel good for institutional use?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel is good for institutional use because its total locking mechanism provides a secure footing and keeps cargo stationary, with the polyolefin offering resistance to wet and corrosive conditions and suitability for washdowns.
How does the nylon brake work on the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel?
The nylon brake on the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel 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 PB Polyolefin Wheel important for safety?
The total locking mechanism on the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel 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 PB Polyolefin Wheel a trusted safety feature?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel’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 PB Polyolefin Wheel enhance stability?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel enhances stability by locking the caster wheel and swivel bearing with the one-step black nylon pedal, keeping equipment firmly in place for standing loads.
What options are available for the Total Locking Plate Caster Model K3A with PB Polyolefin Wheel?
The Total Locking Plate Caster Model K3A with PB Polyolefin Wheel 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 Glass Filled Nylon
- High Temp Phenolic – Fiberglas
Key Features
Construction: Stamped steel with zinc-plated frame
Weight Capacity: 350 lbs per caster for 4” and 5” wheels (250 lbs for 3” wheel), recommended only for manually moved applications with standing loads that move infrequently, not to exceed 1200 lbs on a set of four
Wheel Sizes: 1-¼” wide “PB” Polyolefin wheels in 3”, 4”, and 5” diameters
Bearings: Precision Sealed Ball Bearings or plain bore (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, food service areas, medical labs, research facilities, educational classrooms, pharmaceutical prep stations, kitchen workstations, maintenance tool racks, laundry sorting tables, library book carts
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
If you have any questions about your measurements, please call 800-501-3808
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