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4″ Economy Stainless Black Polyolefin Wheel – Stainless Steel Plate K3
$30.81
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
Plain Bore
Maximum Capacity (lbs)
350 lbs
Overall Height
5-1/8"
Color
Black
Weight
2.5 lbs
Description
4″ Polyolefin ( Black ). Shown in photo with 5″ wheels. K3A SS Rigid Caster, built with stamped 304 stainless steel is a cold forged one piece construction. 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”. This rigid caster is chosen when you need to steer in a direct line and you do not require swivel capabilities. This rigid caster uses a 3/8” diameter axle bolt with a latching nut. You can order a lube axle with a grease fitting in the bold head if you need to grease a wheel This caster was designed for hand powered applications only. It is not built to handle industrial abuse in any way or kind When hand powering loads, choose the bigger practical diameter. K3A rigid caster and some of the wheels it offers are NSF and ROHS compliant.
The PB – Polyolefin Wheel for the Economy Stainless Steel Plate Caster SS-K3 is a light-duty industrial caster wheel designed for sanitary and washdown applications in settings like pharmaceutical labs hospitals food processing plants animal labs and butcher tables where lightweight durability and hygiene are essential. Available in diameters of 3” 4” and 5” with a 1-¼” tread width this high-impact resistant polyolefin wheel supports up to 300 lbs per caster matching the SS-K3 bracket’s limit and operates from -20°F to 180°F making it ideal for wet environments with smooth floors. It features a plain bore for simplicity and compatibility with the 3/8” axle bolt in washdown settings like institutional environments.
The PB – Polyolefin Wheel’s lightweight non-marking design ensures clean operation with excellent resistance to chemicals solvents oils grease and water making it perfect for washdown applications in settings like labs or food plants though it’s not suited for shock overloading abuse obstructions rough floors or prolonged standing loads. Its durable polyolefin material provides a cost-effective solution prioritizing hygiene and ease of movement in sanitary environments. Paired with the Economy Stainless Steel Plate Caster SS-K3’s 304 stainless steel frame with a drain hole to prevent water buildup this stainless steel caster is a top choice among industrial casters and wheels for stainless steel caster applications needing cost-effective durability and clean operation in washdown environments like pharmaceutical labs institutional settings or material handling.
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.
FAQ
Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin Wheel FAQ
What is the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin Wheel used for?
It’s an economy stainless steel plate caster designed for sanitary and washdown applications in settings like pharmaceutical labs hospitals food processing plants animal labs and butcher tables. With a 304 stainless steel frame and PB – Polyolefin Wheel this stainless steel caster offers lightweight durable operation in wet or corrosive environments.
How much weight can the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin Wheel hold?
The Economy Stainless Steel Plate Caster SS-K3 and the PB – Polyolefin Wheel both support up to 300 lbs per caster across all sizes (3” 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 PB – Polyolefin Wheel?
The PB – Polyolefin Wheel for the Economy Stainless Steel Plate Caster SS-K3 comes in diameters of 3” 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 PB – Polyolefin 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 PB – Polyolefin Wheel is made from high-impact resistant polyolefin offering lightweight durability and excellent chemical resistance.
How does the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin 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 PB – Polyolefin Wheel on the Economy Stainless Steel Plate Caster SS-K3 special?
The PB – Polyolefin Wheel on the Economy Stainless Steel Plate Caster SS-K3 is lightweight non-marking and highly resistant to chemicals solvents oils grease and water making it ideal for washdown applications. It operates from -20°F to 180°F and provides a durable cost-effective solution for sanitary settings like pharmaceutical labs hospitals and food processing plants but isn’t suited for shock overloading abuse obstructions or rough floors.
What bearings are used in the PB – Polyolefin Wheel for the Economy Stainless Steel Plate Caster SS-K3?
The PB – Polyolefin Wheel for the Economy Stainless Steel Plate Caster SS-K3 always uses a plain bore with no bearings ensuring simplicity and compatibility with the 3/8” axle bolt in washdown environments.
What add-on options are available for the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin 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 PB – Polyolefin 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 food processing plants hospitals animal labs or butcher tables. The PB – Polyolefin Wheel resists water chemicals solvents oils and grease with a temperature range of -20°F to 180°F making it perfect for washdown applications.
Are the PB – Polyolefin Wheels in the Economy Stainless Steel Plate Caster SS-K3 safe for factory floors?
Yes the PB – Polyolefin Wheel in the Economy Stainless Steel Plate Caster SS-K3 is non-marking and designed to protect factory floors in sanitary settings like labs or hospitals. However it’s not recommended for rough uneven or cluttered surfaces as it may struggle in those conditions.
What are the top applications for the PB – Polyolefin Wheel in the Economy Stainless Steel Plate Caster SS-K3?
These wheels in the Economy Stainless Steel Plate Caster SS-K3 excel in pharmaceutical labs hospitals food processing plants animal labs and butcher tables for moving light equipment in washdown areas and institutional settings needing lightweight chemical-resistant wheels. 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 PB – Polyolefin Wheel handle abusive conditions?
No this stainless steel caster is designed for clean sanitary environments not abusive conditions. The PB – Polyolefin 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 labs hospitals or food plants where hygiene and lightweight durability are key.
Why are economy stainless steel casters like the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin 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 PB – Polyolefin Wheel’s lightweight design and resistance to chemicals make it reliable for moving light carts or equipment in hospitals labs or food plants.
Which industries use the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin Wheel?
The Economy Stainless Steel Plate Caster SS-K3 is used in 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 PB – Polyolefin 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. The PB – Polyolefin Wheel with its plain bore requires no additional maintenance.
Can the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin 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 PB – Polyolefin 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 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 butcher tables or food processing plants.
Where can I buy the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin 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 11:29 PM PDT on Wednesday June 04 2025.
Key Features of the Economy Stainless Steel Plate Caster SS-K3 with PB – Polyolefin 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: 3” 4” 5” diameters 1-¼” wide
- Wheel Material: High-impact resistant polyolefin
- Bearings: Plain bore only
- 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: 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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