FAQ

Economy Stainless Steel Stem Caster Model K3 with Polyolefin Wheel

What is the Economy Stainless Steel Stem Caster Model K3 with Polyolefin Wheel?

The Economy Stainless Steel Stem Caster Model K3 with Polyolefin Wheel is a light-duty caster made from stamped 304 stainless steel, designed for wet, corrosive environments. It features a 1.25″ wide polyolefin wheel (available in 3″ to 5″ diameters, black or white) with a one-piece sanitary design, using plain bore or sealed ball bearings. The swivel has a double ball raceway with a 1/2″ stainless steel rivet, a 3/8″ axle bolt, and supports up to 300 lbs per caster.

What environments is the Economy Stainless Steel Stem Caster Model K3 with Polyolefin Wheel suited for?

This caster is designed for pharmaceutical labs, hospitals, and food processing plants requiring sanitary designs. Its 304 stainless steel frame and polyolefin wheel resist rust and most liquids 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 Polyolefin Wheel?

The Model K3 with Polyolefin Wheel supports up to 300 lbs per caster for manual movement. To avoid overloading, divide the total equipment load by the number of casters, ensuring each caster’s capacity exceeds the calculated load for uneven surfaces or dynamic forces.

What is the temperature range of the Economy Stainless Steel Stem Caster Model K3 with Polyolefin Wheel?

The polyolefin wheel operates in temperatures from -20°F to 140°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 Polyolefin 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 1.25″ wide polyolefin wheel is a one-piece sanitary design, resistant to most liquids, with a hard composition to prevent flat spots, and uses plain bore or sealed ball bearings. It supports up to 300 lbs per caster and 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 Polyolefin Wheel?

The Model K3 comes with a 1.25″ wide polyolefin wheel (available in 3″ to 5″ diameters, black or white) with plain bore or sealed ball bearings. The wheel is also available in a 2″ width and larger diameters (4″ to 8″), with flat or crowned tread faces, designed for sanitary and washdown applications but not for heavy shock or poor floors.

Is the Economy Stainless Steel Stem Caster Model K3 with Polyolefin Wheel resistant to chemicals?

Yes, the 304 stainless steel frame resists corrosion from water, chemicals, and washdowns. The polyolefin wheel resists most commonly encountered liquids, making it suitable for food processing, labs, and healthcare settings with frequent sanitation.

What is the durometer of the Economy Stainless Steel Stem Caster Model K3 with Polyolefin Wheel?

The polyolefin wheel has a Shore D durometer of approximately 75 (±5), providing a hard, durable surface that withstands light-duty use, prevents flat spots during prolonged parking, and maintains smooth rolling in sanitary applications.

What is the lead time for the Economy Stainless Steel Stem Caster Model K3 with Polyolefin 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 Polyolefin Wheel?

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

Expanding Rubber Stems (for round tubes, secured with a knurled nut):
ER9: Fits 7/8″ to 1″ round tubes, 1-7/8″ length, expands 0.730″ to 0.851″.
ER27: Fits 7/8″ to 1″ round tubes, 1-7/8″ length, expands 0.852″ to 0.927″.
ER28: Fits 1″ to 1-1/16″ round tubes, 1-7/8″ length, expands 0.928″ to 1.029″.
ER29: Fits 1-1/16″ to 1-1/8″ round tubes, 1-7/8″ length, expands 1.030″ to 1.140″.
ER17: Fits 1-1/8″ to 1-1/4″ round tubes, 2-1/4″ length, expands 1.141″ to 1.303″.
ER25: Fits 1-1/2″ to 1-9/16″ round tubes, 2-1/4″ length, expands 1.300″ to 1.425″.
ER26: Fits 1-5/8″ to 1-11/16″ round tubes, 2-1/4″ length, expands 1.426″ to 1.589″.
ER21: Fits 1-7/8″ to 1-9/16″ round tubes, 2-1/4″ length, expands 1.590″ to 1.950″.

Grip Ring Stems (for sockets, secured by a grip ring):
GR91: 7/16″ diameter, 1-7/16″ length, 1-1/8″ usable length below grip ring, fits smaller sockets.
GR95: 7/8″ diameter, 1-7/8″ length, 1-1/2″ usable length below grip ring, fits larger sockets.

Square and Round Metal Stems (for square or round metal tubes):
SQ3/4: 3/4″ square stem, 1-1/4″ length, fits 3/4″ square tubes, 1-1/8″ usable length.
SQ7/8-GR: 7/8″ round stem with grip ring, 2-1/4″ length, fits 7/8″ round tubes, 1-1/2″ usable length.
SQ7/8: 7/8″ round stem, 2-1/4″ length, fits 7/8″ round tubes, 1-1/2″ usable length.

Threaded Stems (for threaded holes or with a nut):
TS81: 3/8-16 thread, 1″ length, for smaller threaded holes.
TS82: 3/8-16 thread, 1-1/2″ length, for deeper threaded holes.
TS22: 1/2-13 thread, 1-1/2″ length, for medium threaded holes.
TS26N: 1/2-13 thread, 2-3/4″ length, for longer reach in threaded setups.
TS5/8: 5/8-11 thread, 1-3/4″ length, for larger threaded holes.
TS3/4: 3/4-10 thread, 1-3/4″ length, for heavy-duty threaded holes.
TSC1: 5/8-11 thread, 4″ length, for extended reach in larger setups.
TSC2: 3/4-10 thread, 4″ length, for extended heavy-duty threaded setups.
TSC3: 3/4-10 thread, 6″ length, for maximum reach in heavy-duty threaded applications.

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 Polyolefin 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 Polyolefin 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.