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4″ Stainless Welded Disc Polyurethane Swivel Wheel – Stainless Steel Plate K3
$92.43
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
Stainless Steel Grade
304 Stainless Steel
ISO 9001
ISO 9001:2015 Certified
Wheel Width
1.25"
Wheel Bearing
Ball
Maximum Capacity (lbs)
350 lbs
Overall Height
5-1/8"
Swivel Radius
3-1/2"
Weight
2.75 lbs
Description
4″ Welded Disc Polyurethane Swivel Wheel. Shown in photo with 5″ wheels. K3A Stainless Steel Plate is considered our “cheaper priced” line of stainless steel casters. Stainless steel casters are perfect for use in a corrosive or wet settings. This is a light duty caster that has been built for hand powered use only. This plate caster is capable of up to 300lbs of weight per caster with the right wheel selected. The swivel bearing is constructed of a double ball raceway which enables the caster to swivel more easily and change directions. The rigid and swivel caster are constructed from stamped 304 stainless steel. The swivel caster contains a center pin that uses a ½” stainless steel rivet The axle diameter is a 3/8” bolt with a latching nut. You can order an stainless steel lube axle which offers a lubricated fitting in the bolt head to grease the wheel. This stainless steel caster also has a mirror finish available upon request. You can get a large selection of wheels. They are NSF and ROHS compliant. 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”. The reason this caster is considered “economy” is lacks the metal shield covering the swivel bearing. K3A Casters also does not come with a lubricated fitting in the swivel bearing. These features are not necessarily negative depending on the application. A metal shield over the swivel bearing can retain water from a wash down which can produce filthy conditions, depending on the use. This caster is ideal for washdown applications such as an animal lab or butcher table. If you must have a lubrication fitting on your stainless steel caster with this plate and bolt hole pattern, please click here for our Stainless Steel Caster Model 3
Welded disc polyurethane swivel wheels are made from 2 stainless steel discs and the polyurethane tire is permanently molded between them. Caster City has designed this caster wheel to use ⅜” stainless steel annular ball bearings. This caster wheel boasts an attractive appearance and was designed for the test laboratory industry to withstand washdowns and caustic chemical conditions. The welded disc polyurethane wheel is available in either 4” or 5” and the tread width is 1-¼”. The welded disc polyurethane wheel has a temperature range of -40°F to +180°F and the durometer of the polyurethane is 95A(+/-5).
FAQ
Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel FAQ
What is the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel used for?
It’s an economy stainless steel plate caster designed for sanitary and washdown applications in settings like test laboratories pharmaceutical labs hospitals food processing plants animal labs and butcher tables. With a 304 stainless steel frame and US – Welded Disc Polyurethane Wheel this stainless steel caster offers durable operation in wet or corrosive environments.
How much weight can the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel hold?
The Economy Stainless Steel Plate Caster SS-K3 and the US – Welded Disc Polyurethane Wheel both support up to 300 lbs per caster across all sizes (4” 5”). It’s not recommended for shock overloading abuse obstructions rough floors or prolonged standing loads.
What wheel sizes are available for the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel?
The US – Welded Disc Polyurethane Wheel for the Economy Stainless Steel Plate Caster SS-K3 comes in diameters of 4” and 5” with a tread width of 1-¼”. Pick the size based on your load and floor type—larger diameters like 5” make it easier to roll on smooth surfaces.
What materials are used in the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel?
The Economy Stainless Steel Plate Caster SS-K3 frame is crafted from stamped 304 stainless steel for rust and corrosion resistance with a double ball raceway a ½” stainless steel rivet center pin and a 3/8” axle bolt with a latching nut. The US – Welded Disc Polyurethane Wheel is made from two stainless steel discs with a polyurethane tire permanently molded between them with a 95A durometer.
How does the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel mount to equipment?
The Economy Stainless Steel Plate Caster SS-K3 mounts via a top plate with a size of 2-3/8″ x 3-5/8″ bolt hole spacing of 1-3/4” x 2-7/8” to 3” and uses 5/16″ mounting bolts making it a solid fit for light equipment like carts or tables in sanitary settings.
What makes the US – Welded Disc Polyurethane Wheel on the Economy Stainless Steel Plate Caster SS-K3 special?
The US – Welded Disc Polyurethane Wheel on the Economy Stainless Steel Plate Caster SS-K3 is designed for test laboratories to withstand washdowns and caustic chemicals with its stainless steel disc construction and molded polyurethane tire. It offers an attractive appearance operates from -40°F to +180°F with a 95A durometer and uses ⅜” stainless steel annular ball bearings for smooth rolling but isn’t suited for shock overloading abuse obstructions or rough floors.
What bearings are used in the US – Welded Disc Polyurethane Wheel for the Economy Stainless Steel Plate Caster SS-K3?
The US – Welded Disc Polyurethane Wheel for the Economy Stainless Steel Plate Caster SS-K3 uses ⅜” stainless steel annular ball bearings for smooth rolling in washdown environments like test laboratories or food plants.
What add-on options are available for the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel?
The Economy Stainless Steel Plate Caster SS-K3 has no add-on options other than an optional stainless steel lube axle which offers a lubricated fitting in the bolt head to grease the wheel ensuring smooth operation in sanitary settings.
Can the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel handle wet or corrosive environments?
Yes the Economy Stainless Steel Plate Caster SS-K3 with its 304 stainless steel frame is ideal for wet or corrosive environments like test laboratories food processing plants hospitals animal labs or butcher tables. The US – Welded Disc Polyurethane Wheel’s stainless steel discs and polyurethane tire resist caustic chemicals and washdowns with a temperature range of -40°F to +180°F.
Are the US – Welded Disc Polyurethane Wheels in the Economy Stainless Steel Plate Caster SS-K3 safe for factory floors?
The US – Welded Disc Polyurethane Wheel in the Economy Stainless Steel Plate Caster SS-K3 offers floor protection compared to harder wheels like phenolic but may not be as non-marking as softer materials. It shines on smooth dry floors in sanitary settings like labs or hospitals but isn’t recommended for rough uneven or cluttered surfaces as it may struggle in those conditions.
What are the top applications for the US – Welded Disc Polyurethane Wheel in the Economy Stainless Steel Plate Caster SS-K3?
These wheels in the Economy Stainless Steel Plate Caster SS-K3 excel in test laboratories for equipment needing to withstand washdowns and caustic chemicals as well as pharmaceutical labs hospitals food processing plants animal labs and butcher tables for moving light equipment in washdown areas. They’re built for clean sanitary environments with smooth floors not for heavy shock or abuse.
Can the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel handle abusive conditions?
No this stainless steel caster is designed for clean sanitary environments not abusive conditions. The US – Welded Disc Polyurethane Wheel isn’t suited for shock overloading abuse obstructions rough floors or prolonged standing loads—it’s best for smooth dry floors in settings like test labs hospitals or food plants where durability and hygiene are key.
Why are economy stainless steel casters like the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel good for material handling?
Economy stainless steel casters like the SS-K3 are great for material handling in sanitary settings because they’re cost-effective and built for washdown environments with a drain hole to prevent water buildup. The US – Welded Disc Polyurethane Wheel’s durability and resistance to caustic chemicals make it reliable for moving light carts or equipment in test labs hospitals or food plants.
Which industries use the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel?
The Economy Stainless Steel Plate Caster SS-K3 is used in test laboratories pharmaceutical labs hospitals food processing plants animal labs butcher tables institutional settings steel mills power plants chemical plants oil rigs mining operations heavy equipment manufacturing logistics hubs automotive aerospace boat building observatories and material handling. It’s perfect for sanitary applications requiring corrosion resistance and durability at a lower cost.
How do I maintain the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel?
The Economy Stainless Steel Plate Caster SS-K3 lacks a grease fitting in the swivel bearing to reduce cost and maintenance making it ideal for washdown settings. For wheels with the optional lube axle grease as needed to ensure smooth operation of the annular ball bearings. Regular cleaning prevents debris buildup in the bearings for optimal performance in washdown environments.
Can the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel be used with powered equipment?
No the Economy Stainless Steel Plate Caster SS-K3 is designed for hand-powered use only due to its light-duty construction. For powered setups consider a different caster model and call Caster City at 800-501-3808 for recommendations.
What is the top plate size of the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel?
The top plate for the Economy Stainless Steel Plate Caster SS-K3 is 2-3/8″ x 3-5/8″ with bolt hole spacing of 1-3/4” x 2-7/8” to 3” and uses 5/16″ mounting bolts making it a solid fit for light equipment like carts or tables in sanitary settings.
Why is there no grease fitting on the Economy Stainless Steel Plate Caster SS-K3?
The Economy Stainless Steel Plate Caster SS-K3 skips the grease fitting in the swivel bearing to cut costs and maintenance making it a budget-friendly choice for washdown applications where lubrication isn’t practical like test labs animal labs or food plants.
How does the swivel design of the Economy Stainless Steel Plate Caster SS-K3 prevent water collection?
With no metal shield over the double ball raceway and a drain hole in the swivel bearing the Economy Stainless Steel Plate Caster SS-K3 allows water to flow right through preventing buildup and keeping conditions hygienic in wet settings like test laboratories butcher tables or food processing plants.
Where can I buy the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel?
You can buy the Economy Stainless Steel Plate Caster SS-K3 directly on this site or check out more details here. For custom setups or questions call Caster City at 800-501-3808 or email sales@castercity.com—they’ll get you the right caster.
When was this FAQ last updated?
This FAQ was last updated at 11:39 PM PDT on Wednesday June 04 2025.
Key Features of the Economy Stainless Steel Plate Caster SS-K3 with US – Welded Disc Polyurethane Wheel
- Construction: Stamped 304 stainless steel double ball raceway ½” stainless steel rivet center pin 3/8” axle bolt with latching nut NSF and ROHS compliant
- Weight Capacity: Up to 300 lbs per caster (bracket and wheel both rated at 300 lbs)
- Wheel Sizes: 4” 5” diameters 1-¼” wide
- Wheel Material: Polyurethane tire molded between two stainless steel discs 95A durometer
- Bearings: ⅜” stainless steel annular ball bearings
- Add-On Options: Optional stainless steel lube axle
- Top Plate: 2-3/8″ x 3-5/8″ bolt hole spacing 1-3/4” x 2-7/8” to 3” 5/16″ bolts
- Applications: Test laboratories, pharmaceutical labs, hospitals, food processing plants, animal labs, butcher tables, institutional settings, steel mills, power plants, chemical plants, oil rigs, mining operations, heavy equipment manufacturing, logistics hubs, automotive, aerospace, boat building, observatories, material handling
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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