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4″ Blue Polyurethane Wheel – 3A
$16.75
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
4
Caster City Recommendation
Ollie Recommends!
Non-Marking
Yes
Wheel Width
1 1/4
Wheel Bearing
Precision Sealed
Maximum Capacity (lbs)
250 lbs
Overall Height
5 1/4"
Weight
2 lbs
Description
4″ Blue/Gray Polyurethane Wheel. Precision Sealed Ball Bearings. Shown with 5″ wheel.
Shown here at Caster City with a 5″ Polyurethane Wheel.
The Polyurethane on Polyolefin Caster Wheel in the Zinc-Plated Total Locking Caster Model 3A is a solid choice for light industrial casters. It has non-marking injection molded polyurethane tires mechanically bonded to a polyolefin center, offered in red, gray, black, or blue colors. This wheel is built for 3”, 4”, and 5” diameters (1.25” wide), has a Shore 60D durometer, and holds up to 300 lbs per wheel on smooth floors from 32°F to 180°F in spots like research labs, hospitals, food service, schools, and institutional applications. The wheel comes with thread guards and precision sealed ball bearings. The thread guards also act as a spanner bushing while protecting the bearings. The metal caster yoke assembly is made from stamped steel, zinc-plated to resist corrosion, with a ⅜” diameter axle bolt and a ½” diameter steel rivet holding the swivel raceways together, plus two rows of ball bearings for smoother swiveling. A total lock brake locks both the wheel and the swivel on a swivel caster at the same time. This setup makes it perfect for a total locking industrial caster needing a smooth-rolling wheel and a sturdy metal fork assembly for sensitive settings.
These polyurethane on poly wheels roll easier than gray rubber on smooth floors and withstand exposure to many chemicals and solvents, making them a smart pick for institutional applications. They don’t work in applications with shock, overloading, abuse, obstructions, poor floors, or standing loads—don’t exceed 50% of the rated capacity for applications parked for long periods, as the bonding agent holding the tire to its polyolefin center can be affected by such conditions. The metal caster assembly adds durability with a dust cover shielding the swivel bearings from dirt, giving reliable performance in dry factory settings like labs or kitchens, ensuring safety with the total lock brake feature when the metal pedal brake is engaged.
Application Use
- Healthcare (Up to 350 lbs): Hospital beds, medical carts, IV poles — Non-marking, rubber wheels
- Education (Up to 300 lbs): Classroom chairs, library carts — Polypropylene, rubber wheels
- Offices (Up to 300 lbs): Office chairs, desks — Soft rubber, nylon wheels
- Retail (Up to 300 lbs): Display racks, shopping carts — Non-marking, polyurethane wheels
- Food Service (Up to 1250 lbs, NSF certified): Food carts, kitchen equipment — Stainless steel, high-temp wheels
- Industrial (Up to 350 lbs): Moving dollies, stocking carts — Hard rubber, nylon wheels
- Hospitality (Up to 300 lbs): Banquet tables, laundry carts — Chrome, rubber wheels
- Warehouses (Up to 1500 lbs): Shelving, carts — Polyurethane, steel wheels
- Manufacturing (Up to 350 lbs): Assembly lines, material handling — Phenolic, rubber wheels
FAQ
Total Locking Caster Model 3A with 1.25-Inch Wide Polyurethane on Polyolefin Caster Wheel
What material is the Polyurethane on Polyolefin Caster Wheel made from in the Total Locking Caster Model 3A?
The Polyurethane on Polyolefin Caster Wheel in the Model 3A total locking caster has non-marking injection molded polyurethane tires mechanically bonded to a polyolefin center, available in red, gray, black, or blue colors, with a Shore 60D durometer for smooth rolling in sensitive settings.
What applications are best for the total locking caster with Polyurethane on Polyolefin Caster Wheels in labs and hospitals?
The total locking caster with Polyurethane on Polyolefin Caster Wheels is perfect for research labs, hospitals, food service, schools, and institutional applications, where a plate mount caster moves loads on smooth floors in dry settings like labs or kitchens, keeping equipment secure with its total lock brake.
What bearing type comes with the Polyurethane on Polyolefin Caster Wheel in the total lock caster?
The Polyurethane on Polyolefin Caster Wheel in the total lock caster comes standard with precision sealed ball bearings, protected by thread guards that also act as a spanner bushing, keeping smooth rolling in institutional applications on dry factory floors.
Can the Polyurethane on Polyolefin Caster Wheel in the total locking caster roll on rough floors?
No, the Polyurethane on Polyolefin Caster Wheel in the total locking caster is built for smooth floor surfaces only—rough floors or obstructions will damage these casters and shorten their life.
Are the casters with Polyurethane on Polyolefin Caster Wheels good for standing loads?
Nope, the casters with Polyurethane on Polyolefin Caster Wheels don’t work for standing loads—don’t exceed 50% of the rated capacity for applications parked for prolonged periods, as the tires may take a permanent set.
How do I protect the Polyurethane on Polyolefin Caster Wheel in the Total Locking Caster Model 3A from damage?
Keep the Polyurethane on Polyolefin Caster Wheel in the Model 3A total lock caster free from shock, overloading, abuse, obstructions, poor floors, and exposure to some chemicals, impact, or heat buildup, which can affect the bonding agent holding the tire to its center and the stamped steel construction’s performance.
Do the Polyurethane on Polyolefin Caster Wheels in the total lock caster leave marks on floors in sensitive settings?
No, the non-marking injection molded polyurethane tire build of the Polyurethane on Polyolefin Caster Wheels in the total lock caster is ideal for protecting costly floor surfaces in hospitals or food service spots.
Why are the total locking casters with Polyurethane on Polyolefin Caster Wheels good for sensitive applications?
The total locking casters with Polyurethane on Polyolefin Caster Wheels roll easier than gray rubber on smooth floors, withstand exposure to many chemicals, and provide smooth rolling with the stamped steel assembly ensuring stability, making them a smart choice for sensitive applications without a big price tag.
What’s the load capacity and temperature range for the Polyurethane on Polyolefin Caster Wheel in the plate mount caster, and how do I adjust for prolonged parking?
The Polyurethane on Polyolefin Caster Wheel in the plate mount caster holds up to 300 lbs per wheel at room temperature and works from 32°F to 180°F, but don’t exceed 50% of the rated capacity for applications parked for prolonged periods to avoid tire damage.
How does the metal pedal brake work on the Total Locking Caster Model 3A with the Polyurethane on Polyolefin Caster Wheel and stamped steel assembly?
The metal pedal brake on the Total Locking Caster Model 3A locks both the wheel and the swivel bearing at the same time, completely immobilizing the stamped steel assembly and turning it into an extension of the leg, keeping the caster secure for safety in stationary applications like carts or tables.
Why is the total lock brake on the Model 3A plate mount caster with Polyurethane on Polyolefin Caster Wheels important for safety in applications like butchering or welding?
The total lock brake on the Model 3A plate mount caster with Polyurethane on Polyolefin Caster Wheels locks the swivel and the wheel, completely immobilizing the stamped steel assembly to prevent the object—like a cart, table, or workbench—from moving when someone leans against it while cutting, welding, or butchering, ensuring safety during such tasks.
What makes the total lock brake on the Model 3A total locking caster a trusted safety feature for institutional applications?
The total lock brake on the Model 3A total locking caster ensures complete immobilization by locking both the wheel and the swivel bearing simultaneously, transforming the caster into a rigid extension of the equipment leg, preventing any movement during critical tasks like assembling, cleaning, or maintenance in institutional settings, making it a trusted choice for safety-focused environments.
How does the total lock brake on the Model 3A total locking industrial caster enhance stability for medical or lab equipment?
The total lock brake on the Model 3A total locking industrial caster locks the wheel and swivel bearing at the same time, fully immobilizing the stamped steel assembly to eliminate any risk of movement, ensuring medical or lab equipment—like carts, tables, or workstations—stays firmly in place during procedures, inspections, or setups, providing unmatched stability and safety in high-precision environments.
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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