Industrial & Heavy Duty Casters | Caster City

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3″ x 1.25″ High Capacity Soft Gray Rubber Wheel – Stainless Steel Stem Caster K3

Name: 3" x 1.25" High Capacity Soft Gray Rubber Wheel - Stainless Steel Stem Caster K3
SKU: SS-K3RH3X
Availability: InStock

$55.55

PN: SS-K3RH3X

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)

Mounting Stem SS-3 *

Click Here To See Stem Options (Modular Stems available for variety of fastening needs)

HK1/2 | HK1/2 - Single 1/2" Bolt Hole For Your Bolt +$1.00

TS61 | TS61 - Threaded Stem 3/8"-16 x 1" Long +$3.00

TS22 | TS22 - Threaded Stem 1/2"-13 x 1-1/2" Long

TS26N | TS26N - Threaded Stem 1/2"-13 x 2-3/4" Long +$3.00

TSC1 | TSC1 - Threaded Stem 1/2"-13 x 4" Long +$25.00

TSC2 | TSC2 - Threaded Stem 5/8"-11 x 4" Long +$25.00

TSC3 | TSC3 - Threaded Stem 3/4"-10 x 6" Long +$25.00

TSC4 | TSC4 - Threaded Stem 3/4"-10 x 4" Long +$25.00

GR91 | GR91 - Grip Ring Stem 7/16" Diameter x 1-3/8" Long +$27.00

GR95 | GR95 - Grip Ring Stem .846" x 2-3/16" (For 7/8" Inner Diameter "Metro" Shelving) +$27.00

SQ7/8-GR | SQ7/8-GR - 7/8" Plain Square Grip Ring (To Drill Your Own Cross-Holes) +$27.00

RD3/4 | RD3/4 - 3/4" Round - 3 Cross Holes +$27.00

SQ3/4 | SQ3/4 - 3/4" Square - 3 Cross Holes +$27.00

ER9 | ER9 - Expanding Rubber for 3/4" Inner Diameter +$25.00

ER27 | ER27 - Expanding Rubber for 7/8" Inner Diameter +$25.00

ER28 | ER28 - Expanding Rubber for 1" Inner Diameter +$25.00

ER29 | ER29 - Expanding Rubber for 1-1/8" Inner Diameter +$25.00

ER17 | ER17 - Expanding Rubber for 1-1/4" Inner Diameter +$25.00

ER25 | ER25 - Expanding Rubber for 1-3/8" Inner Diameter +$25.00

ER26 | ER26 - Expanding Rubber for 1-1/2" Inner Diameter +$25.00

ER21 | ER21 - Expanding Rubber for 1-13/16" Inner Diameter +$25.00

Wheel Brake SS-3 *

Please Select a Brake Option.

TB | TB - Metal Pedal on side of wheel +$10.00

PTB | PTB - Plastic Pedal on top of wheel (Easier To Use) +$10.00

Volume Pricing on Inquiry. Call us: 800-501-3808

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SKU: SS-K3RH3XCategories: Swivel Casters, Stainless Steel Casters, Stainless Steel Economy Stem Caster Model K3 - up to 350 lbs each, Coarse Threaded Stem, Expanding Rubber Stem, Square and Rounded Metal Stem, Grip Ring Stem

Technical Specifications

Wheel Diameter

Caster City Recommendation

Ollie Recommends!

Non-Marking

Yes

Stainless Steel Grade

304 Stainless Steel

Durometer

60A ± 5

Wheel Width

1 1/4

Wheel Bearing

Precision Sealed

Maximum Capacity (lbs)

300 lbs

Overall Height

4 1/16"

Swivel Radius

2 7/8

Color

Gray

Stainless Steel Stem Add Ons

ER17, ER21, ER25, ER26, ER27, ER28, ER29, ER9, GR91, GR95, HK1/2, RD3/4, SQ3/4, SQ7/8-GR, TS-S1, TS-S2, TS-S3, TS-S7, TS22, TS26N, TS61

Brake Codes

PTB, TB

Lube Axle Code

Weight

1.5 lbs

Description

RH High Capacity Soft Gray Rubber Wheel with stainless steel ball bearings.

The RH High Capacity Soft Gray Rubber Wheel is engineered for heavy-duty performance, featuring non-marking, injection-molded thermoplastic rubber (TPR) tires mechanically bonded to a polyolefin core. These Soft Rubber 65A Durometer wheels are a perfect match for the Stainless Steel Economy K3 Swivel and Rigid Caster, ideal for pharmaceutical labs, hospitals, food service, and institutional settings where hygiene and corrosion resistance are critical. Equipped with stainless steel ball bearings, they ensure smooth rolling with a capacity of up to 350 lbs per wheel (175 lbs for manual pushing) in environments free of shock, overloading, abuse, obstructions, or poor floors, making them great for carts, tables, or lab equipment in wet or dry conditions.

These soft gray rubber wheels offer a quiet, cushioned ride, absorbing shocks to protect equipment and delicate cargo while gliding over small debris and safeguarding floors like tile or linoleum. NSF-listed for food service and medical environments, they minimize vibration and resist many chemicals and solvents, though harsh chemicals, impacts, overloading, or heat can affect the bond holding the tread to the polyolefin core. They perform best on smooth, dry factory floors and don’t roll easily under heavy loads, so pick the largest wheel size (3”, 4”, or 5”) and cut capacity by 50% for manual movement. Avoid prolonged standing loads to prevent flat spots. Paired with the Stainless Steel Economy K3 Caster, these wheels deliver reliable, corrosion-resistant performance for demanding institutional use.

The Economy Stainless Steel Stem Caster Model K3 is a budget-friendly, light-duty caster designed for manual applications in wet or corrosive environments, like pharmaceutical labs, hospitals, or food service. Made from stamped 304 stainless steel, it supports up to 300 lbs per caster with the right 2-inch wide wheel, featuring a mounting stem fastening choices. The swivel version has a double ball raceway with a 1/2” stainless steel rivet for easy turning, while the rigid version, a cold-forged one-piece design, ensures straight-line movement. Both use a 3/8” axle bolt with a locking nut, with an optional lube axle for wheel greasing, and offer NSF/ROHS-compliant wheels for hygiene. A high-polish mirror finish is available on request.

Perfect for washdown settings like animal labs or butcher tables, the K3’s economy design skips a swivel bearing shield to avoid water retention, which can be a plus for sanitation, though it lacks a grease fitting in the swivel bearing. It’s not built for heavy industrial abuse, so stick to manual use and choose the largest wheel diameter (like the RH High Capacity Soft Gray Rubber Wheel) for easier rolling. Get it at www.castercity.com or call 800-501-3808 for custom wheel or bearing options. For a lubricated swivel bearing, check out the Stainless Steel Caster Model 3.

FAQ

Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel

What is the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

The Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel is a light-duty caster made from stamped 304 stainless steel, designed for corrosive environments. It features a 3″ diameter, 1-1/4″ wide soft gray rubber wheel with a Shore A 90-95 durometer, operating from -20°F to 160°F. The swivel has a double ball raceway with a 1/2″ stainless steel rivet, a 3/8″ axle bolt, and supports up to 1000 lbs for a set of four casters, with a sealed ball bearing bushed to 3/8″ using plastic spanner bushings as thread guards.

What environments is the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel suited for?

This caster is designed for food service areas, hospitals, and science research labs requiring quiet, clean operation. Its 304 stainless steel frame and soft gray rubber wheel resist rust and chemicals in wet or corrosive conditions, making it suitable for washdown applications while meeting NSF and ROHS standards for hygiene.

What is the weight capacity of the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

The Model K3 with RF Soft Gray Rubber Wheel supports up to 1000 lbs for a set of four casters (250 lbs per caster) for manual movement. Reduce the load by 50% if pushing by hand for easier rolling, and divide the total equipment load by the number of casters to avoid overloading on uneven surfaces.

What is the temperature range of the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

The soft gray rubber wheel operates in temperatures from -20°F to 160°F, suitable for light-duty applications in washdown or sanitary settings. For higher temperature needs, consult Caster City at 800-501-3808 to explore alternative wheel options.

What are the key features of the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

It features a 304 stainless steel frame, a double ball raceway swivel with a 1/2″ rivet, and a 3/8″ axle bolt with an optional lube axle. The 3″ soft gray rubber wheel (Shore A 90-95) is non-marking, absorbs shocks, and has a sealed ball bearing bushed to 3/8″ with plastic spanner bushings as thread guards, supporting up to 250 lbs per caster. It lacks a dust cap and grease fitting for better washdown drainage.

What wheel options are available for the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

The Model K3 comes with a 3″ diameter, 1-1/4″ wide soft gray rubber wheel with sealed ball bearings, but other wheel options are available, including polyolefin or all polyurethane wheels in 3″ to 5″ diameters for the Model K3 bracket. The soft gray rubber wheel is also available in larger diameters (4″ to 5″) for smoother rolling on smooth surfaces.

Is the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel resistant to chemicals?

Yes, the 304 stainless steel frame resists corrosion from water, chemicals, and washdowns. The soft gray rubber wheel handles chemicals and solvents, making it suitable for food service, labs, and healthcare settings with frequent sanitation, though certain chemicals may affect the bonding over time.

What is the durometer of the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

The soft gray rubber wheel has a Shore A durometer of 90 to 95, providing a soft, shock-absorbing surface that reduces noise and vibration while protecting floors in light-duty applications, though it may develop flat spots under prolonged standing loads.

What is the lead time for the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

The Model K3 has a fast lead time, typically 2 days, allowing quick delivery for industrial buyers. Orders can be placed through Caster City’s website or by calling 800-501-3808 for prompt processing.

What are the stem mounting options for the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

The Model K3 supports a wide range of stem types for mounting:

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

These stem types and sizes ensure compatibility with a wide range of equipment setups in light-duty, washdown applications.

How should the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel be maintained?

Maintenance is minimal due to its open swivel design and lack of grease fitting, which prevents water retention. Clean the caster regularly to remove debris, especially after washdowns, to maintain performance in corrosive environments.

Where can I buy the Economy Stainless Steel Stem Caster Model K3 with RF Soft Gray Rubber Wheel?

Buy the Model K3 directly from Caster City’s website or by calling 800-501-3808. With a fast lead time and online availability, it’s accessible for industries needing corrosion-resistant, washdown-ready casters.

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:

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Caster performance data.
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Customized caster solutions.
Help with caster solutions.
Case studies by industry or application.
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Majority of Orders Processed and Shipped in 2 Days or Less

Call us during the design phase of your project, we can help you avoid costly modifications once fabrication has started. We guarantee what we recommend.