6″ Crown Polyurethane on Iron – Stem Caster G15
$156.21
Technical Specifications























- Description
- FAQ
- Application Use
- Reviews
- CASTER CITY GUARANTEE
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Description
The Stem Caster Model G15 is a robust, heavy-duty industrial stem caster engineered for superior load-bearing capacity, boasting the highest capacity ratings among all stem caster models (up to 1,500 lbs per caster under ideal manual conditions, with weight directly on the swivel bearing). It is available with two stem types: threaded stems in ¾” and 1” diameters, and plain round stems in ¾”, ⅞”, 1”, and 1-⅜” diameters. For threaded stem casters, the weight is designed to be supported by the top of the swivel bearing, not the threaded stem itself, meaning they are not suitable for use as leveling devices. To ensure stability and safety, it is strongly recommended to fully thread the caster into the application. Plain round stems, on the other hand, are secured inside tubing by drilling a hole through both the tubing and stem, then inserting a bolt through the cross hole for a secure fit. The Model G15 is intended exclusively for hand-powered, manually moved applications (up to 3 mph on smooth floors), making it ideal for carts or equipment that are not mechanically driven, with capacities rated for infrequent movement without abuse.
This heavy duty industrial stem caster offers extensive customization through wheel and bearing options to suit diverse industrial needs, such as warehouse handling, material carts, or factory equipment. All wheels are consistently 2 inches wide for optimal stability and load distribution. Available wheel diameters include 4″, 5″, 6″, and 8″, allowing selection based on floor conditions, maneuverability, and capacity requirements—larger diameters generally provide better rollability over obstacles and less effort required to initiate movement.
Crown-Tread Red Polyurethane on Iron (PCI) Caster Wheels
Crown-Tread Red Polyurethane on Iron (PCI) Caster Wheels from Caster City combine ergonomic design with high load capacity, making them an excellent choice for heavy-duty institutional and industrial applications. Featuring a flexible polyurethane crown tread bonded to a durable iron core, these wheels are designed to support up to 1200 lbs per wheel at room temperature on smooth floors. With a tire hardness of 90 Durometer (Shore A), they offer a balance of durability and floor protection, outperforming harder composition wheels that can damage surfaces. Available in 2-inch width with diameters of 4, 5, 6, and 8 inches, these wheels include precision sealed ball bearings with top hat spanners for a 1/2-inch axle or roller bearings for smooth operation. The crown tread design enhances maneuverability, allowing efficient direction changes under heavy loads, making them ideal for environments like labs, hospitals, food processing plants, and fabrication shops.
The PCI wheels excel in resisting grease, oil, cutting, chunking, and abrasive wear, surpassing rubber wheels in durability. Their ability to withstand impacts and heavy loads makes them suitable for demanding applications such as hand trucks, material handling carts, and heavy equipment movers. However, the bonding agent securing the polyurethane tread to the iron core may weaken under exposure to certain chemicals, high impact, overloading, or heat buildup from continuous use. Operating within a temperature range of -20°F to 180°F, these wheels provide reliable performance in diverse settings, including warehouses, automotive plants, and aerospace facilities. For applications involving extreme conditions, consult Caster City’s engineering team at 800-501-3808 to ensure optimal performance and longevity.
Features
- Material: Red polyurethane crown tread bonded to an iron core.
- Max Capacity: Supports up to 1200 lbs per wheel on smooth floors at room temperature.
- Wheel Width: 2 inches.
- Wheel Height: Available in 4, 5, 6, and 8-inch diameters.
- Tire Hardness: 90 Durometer, Shore A for durability and floor protection.
- Temperature Range: -20°F to 180°F.
- Bearing Options: Precision sealed ball bearings with top hat spanners for 1/2-inch axle or roller bearings.
- Crown Tread Design: Enhances maneuverability and load distribution for easier direction changes.
- Resistance: Superior resistance to grease, oil, cutting, chunking, and abrasive wear.
- Floor Protection: Offers better floor protection than hard composition wheels.
Wheel materials (treads) vary to match specific applications, including:
- Rubber (e.g., gray soft rubber with crown tread): Quiet, floor-protecting, and non-marking for smooth indoor surfaces.
- Polyurethane (e.g., all polyurethane, crown orange polyurethane on iron core, red crown polyurethane on cast iron core): Durable, non-marking, and resistant to chemicals/oils, ideal for institutional or factory floors.
- Polyolefin: Lightweight, affordable, and impact-resistant for general use.
- Nylon: High-strength and abrasion-resistant for rougher surfaces.
- Phenolic: Hard and heat-resistant for heavy loads in dry environments.
- Steel: Caster City offers Ductile Steel and Forged Steel wheels as options for this heavy duty industrial caster.
Bearing choices for the wheels further enhance performance and longevity, with options including:
- B (Ball Bearings): Smooth rolling for moderate loads. Lowest initial force needed to get moving.
- BRNZ (Bronze): High Temperature Bearing for High Heat Applications. Low-maintenance and corrosion-resistant.
- D (Delrin): Self-lubricating plastic for quiet, lightweight operation where frequent wash-downs occur.
- PS (Precision Sealed Ball Bearings): Maintenance-free, high-precision for smoother, longer-lasting performance (standard on many polyurethane wheels).
- P (Plain Bore): Simple and economical for basic applications.
- R (Roller Bearings): Cost Effective and a great choice for many industrial applications.
The swivel construction features precision-machined combination load and thrust bearings with heat-treated raceways for reduced vibration, easier swiveling, and extended durability— Kingpinless Caster Design has no center pin and avoids weakpoints and failures occurring.
Optional add-ons enhance functionality:
- TB (Top Lock Brake): A pedal on the side of the wheel locks only the wheel’s rotation.
- TL (Total Lock Brake): Simultaneously locks both the wheel and the swivel mechanism for maximum stability.
- UFCB (Bolt-On Universal Face Contact Brake): A versatile, bolt-on brake that engages the wheel’s face to prevent movement.
- FCB (Heavy Duty Weld-On Face Contact Brake): A robust, permanently welded brake for heavy-duty applications requiring secure wheel locking.
These features, combined with the flexible wheel and bearing selections, make the G15 a versatile choice for industrial settings where durability, high load capacity, and customization are critical, provided the application aligns with its hand-powered design. For CAD files, exact capacities per configuration, or tailored recommendations, contact Caster City at sales@castercity.com or 800-501-3808.
Threaded Stem Casters should NOT be used as a “Leveling Device”!
Crown-Tread Red Polyurethane on Iron Caster Wheels – Your Best Ergonomic Option

Crown-Tread Red Polyurethane on Iron (PCI) Caster Wheels from Caster City combine ergonomic design with high load capacity, making them an excellent choice for heavy-duty institutional and industrial applications. Featuring a flexible polyurethane crown tread bonded to a durable iron core, these wheels are designed to support up to 1200 lbs per wheel at room temperature on smooth floors. With a tire hardness of 90 Durometer (Shore A), they offer a balance of durability and floor protection, outperforming harder composition wheels that can damage surfaces. Available in 2-inch width with diameters of 4, 5, 6, and 8 inches, these wheels include precision sealed ball bearings with top hat spanners for a 1/2-inch axle or roller bearings for smooth operation. The crown tread design enhances maneuverability, allowing efficient direction changes under heavy loads, making them ideal for environments like labs, hospitals, food processing plants, and fabrication shops.
The PCI wheels excel in resisting grease, oil, cutting, chunking, and abrasive wear, surpassing rubber wheels in durability. Their ability to withstand impacts and heavy loads makes them suitable for demanding applications such as hand trucks, material handling carts, and heavy equipment movers. However, the bonding agent securing the polyurethane tread to the iron core may weaken under exposure to certain chemicals, high impact, overloading, or heat buildup from continuous use. Operating within a temperature range of -20°F to 180°F, these wheels provide reliable performance in diverse settings, including warehouses, automotive plants, and aerospace facilities. For applications involving extreme conditions, consult Caster City’s engineering team at 800-501-3808 to ensure optimal performance and longevity.
Features
- Material: Red polyurethane crown tread bonded to an iron core.
- Max Capacity: Supports up to 1200 lbs per wheel on smooth floors at room temperature.
- Wheel Width: 2 inches.
- Wheel Height: Available in 4, 5, 6, and 8-inch diameters.
- Tire Hardness: 90 Durometer, Shore A for durability and floor protection.
- Temperature Range: -20°F to 180°F.
- Bearing Options: Precision sealed ball bearings with top hat spanners for 1/2-inch axle or roller bearings.
- Crown Tread Design: Enhances maneuverability and load distribution for easier direction changes.
- Resistance: Superior resistance to grease, oil, cutting, chunking, and abrasive wear.
- Floor Protection: Offers better floor protection than hard composition wheels.
Applications
- Institutional Settings: Hospital bed movers, lab equipment carts, and medical device transporters in healthcare facilities.
- Food Processing: Bulk ingredient carts, processing equipment movers, and sanitation carts in food plants.
- Fabrication Shops: Heavy-duty industrial caster wheels for metal fabrication trolleys and tooling carts.
- Material Handling: Hand trucks, platform trucks, and pallet movers for warehouses and distribution centers.
- Automotive: Vehicle assembly line carts and heavy parts transporters for axles or engines.
- Aerospace: Ground support equipment and aircraft component movers in hangars.
- Warehousing: Inventory carts, rack movers, and order picking carts for logistics hubs.
- Manufacturing: Assembly line carts, work-in-progress carts, and maintenance carts for heavy machinery.
- General Industrial: Conveyor system supports, heavy equipment movers, and scrap metal bins.
FAQ on Crown-Tread PCI caster wheels
What makes Crown-Tread PCI wheels suitable for heavy-duty applications?
The flexible polyurethane crown tread on an iron core supports up to 1200 lbs per wheel, resists wear, and allows efficient direction changes, making them ideal for heavy-duty tasks.
Can these wheels be used on delicate floors?
Yes, the polyurethane tread provides better floor protection than hard composition wheels, making them suitable for smooth factory floors in hospitals, labs, and food processing plants.
What are the key specifications of these wheels?
- Max Capacity: 1200 lbs per wheel.
- Material: Red polyurethane on iron core.
- Wheel Width: 2 inches.
- Wheel Height: 4, 5, 6, or 8 inches.
What conditions might affect the wheel’s performance?
Exposure to certain chemicals, high impact, overloading, or heat buildup from continuous use may weaken the bonding agent securing the tread to the iron core.
What bearing options are available?
These wheels come with precision sealed ball bearings with top hat spanners for a 1/2-inch axle or roller bearings, ensuring smooth operation.
TYPES OF STEMS FOR THIS MODEL
THREADED STEMS:
- TST1 – Threaded Stem 3/4″-10 x 2-1/2″ Long
- TSS7 – Threaded Stem 3/4″-10 x 4-1/2″ Long
- TST2 – Threaded Stem 1″-8 x 2-1/4″ Long
- TSC7 – Threaded Stem 1″-8 x 4″ Long
- TSS1 – Threaded Stem 1/2″-13 x 4″ (Good for only 350 lbs)
- TSD7 – Threaded Stem 3/4″-10 x 4″ Long
- TSD1 – Threaded Stem 1″-8 x 6-1/4″ Long
- TSS3 – Threaded Stem 3/4″-10 x 6″ Long
PLAIN ROUND STEMS:
- RDL2 – Plain Round Stem 3/4″ x 4″ Long (To Drill Your Own Cross-Holes)
- RDL3 – Plain Round Stem 7/8″ x 4″ Long (To Drill Your Own Cross-Holes)
- RDL4 – Plain Round Stem 1″ x 4″ Long (To Drill Your Own Cross-Holes)
- RDL5 – Plain Round Stem 1-3/8″ x 4″ Long (To Drill Your Own Cross-Holes)
FAQ
What is the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel, and what’s it used for?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel is a robust industrial caster shipped from Texas, Ohio, or Washington, designed for heavy-duty applications with a capacity of up to 1,500 lbs per caster, suitable only for infrequently moved manual applications with no abuse. It features precision machined swivel bearings with a heat-treated raceway and no center pin, ensuring easier swiveling, reduced vibration, and longer trouble-free performance. The caster includes 1/4″ thick legs welded inside and out, a 1/2″ diameter hollow bolt axle with lock nut, and a zinc-plated finish for rust resistance, with zerk grease fittings for swivel and wheel bearings to facilitate maintenance. It offers fastener type options: threaded stems (TST1: 3/8″ – 10 x 2 1/2″, TSS7: 3/4″ – 10 x 4 1/2″, TST2: 1″ – 8 x 2 1/4″, TSC7: 1″ – 8 x 4″, TST8: 1″ – 8 x 8″ Long) and plain round stems (RDL2: 3/4″ x 4″, RDL3: 7/8″ x 4″, RDL4: 1″ x 4″, RDL5: 1 3/8″ x 4″), supporting 2″ wide “PCI” wheels in 4”, 5”, 6”, and 8” diameters with overall heights of 4” x 2” = 5-7/16”, 5” x 2” = 6-5/16”, 6” x 2” = 7-5/16”, and 8” x 2” = 9-5/16”. The “PCI” wheel’s Flex Compound polyurethane elastomer (85 Shore A durometer), chemically bonded to a heavy cast iron core, provides a semi-cushioned ride, excellent floor protection, and a crown tread that reduces surface friction for easier turns and rolling effort. Threaded stems should not be used as leveling devices, and capacity ratings assume weight is directly on the swivel bearing. It’s ideal for manually moved equipment like material handling carts and warehouse setups on dry factory floors, with optional brakes for added safety. Contact us at sales@castercity.com or 800-501-3808 for tailored recommendations.
What’s the load capacity of the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel supports up to 1,500 lbs per caster under ideal manual conditions (up to 3 mph on smooth floors) for infrequently moved applications with no abuse, with the “PCI” wheel offering up to 1,000 lbs capacity. The crown tread enhances rolling ease, but capacity ratings are based on weight directly on the swivel bearing, and threaded stems should not bear weight above the bearing. Exceeding this limit or using it with powered equipment may reduce capacity—contact us at sales@castercity.com or 800-501-3808 for specific ratings.
What wheel sizes are available for the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel accommodates 2″ wide “PCI” wheels in 4”, 5”, 6”, and 8” diameters, with overall heights of 4” x 2” = 5-7/16”, 5” x 2” = 6-5/16”, 6” x 2” = 7-5/16”, and 8” x 2” = 9-5/16”, tailored to the stem mount configuration for a semi-cushioned, low-effort ride.
What materials are used in the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel features a zinc-plated steel frame for rust resistance, 1/4″ thick legs welded inside and out, a 1/2″ diameter hollow bolt axle with lock nut, and fastener type options (threaded and plain round) for secure mounting. The “PCI” wheel has a non-marking Flex Compound polyurethane elastomer tread with a crown design and 85 Shore A durometer, chemically bonded to a heavy cast iron core, providing durability and floor protection. Zerk grease fittings ensure maintenance ease—contact us for additional material details.
What bearings are used in the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel uses precision machined combination load and thrust bearings with a heat-treated raceway, coming standard with roller bearings and offering sealed precision ball bearings as an option to minimize friction and enhance rolling effort with the crown tread. For specific needs, contact us at sales@castercity.com or 800-501-3808.
What brake options are available for the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel offers the following brake options:
No Brake: Standard option with no additional cost.
TB – Top Lock Brake – Pedal on side of wheel: Adds $10.00, providing a pedal-activated lock.
FCB – Heavy Duty Weld On Face Contact Brake: Adds $50.00, a robust weld-on brake for enhanced stopping power.
TL – Total Lock Brake: Adds $25.00, offering a comprehensive lock for both wheel and swivel.
UFCB – Universal Face Contact Brake: Adds $20.00, a versatile face contact brake. These options enhance safety for manual applications—contact us for installation guidance.
Can the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel handle wet or corrosive environments?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel’s zinc-plated steel frame resists rust, with potential stainless steel options for wet or corrosive environments—contact us for availability. The “PCI” wheel’s polyurethane elastomer offers some chemical resistance, suitable for manual use within its -40°F to 180°F temperature range.
Which industries use the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel is used in warehouses, manufacturing plants, food processing facilities, automotive shops, healthcare facilities, retail storage, construction sites, aerospace, defense, pharmaceuticals, electronics assembly, textile manufacturing, marine engineering, renewable energy installations, heavy equipment repair shops, and logistics hubs, ideal for infrequently moved manual equipment like material handling carts and warehouse setups on dry factory floors, where the crown tread reduces rolling effort.
How do I maintain the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel for long-term use?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel requires greasing the zerk fittings in the raceway and wheel bearings regularly to ensure smooth, quiet performance in manual applications. Avoid exceeding 1,500 lbs per caster or 1,000 lbs per wheel, and keep within the -40°F to 180°F range to prevent damage to the polyurethane bond or rolling efficiency.
Can the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel be used with powered equipment?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel is recommended only for manually moved applications and not suitable for powered equipment due to its 1,500 lbs capacity limit under non-abusive conditions. For powered use, contact us at sales@castercity.com or 800-501-3808 for alternative models.
What size is the stem on the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel offers threaded stems (TST1: 3/8″ – 10 x 2 1/2″, TSS7: 3/4″ – 10 x 4 1/2″, TST2: 1″ – 8 x 2 1/4″, TSC7: 1″ – 8 x 4″, TST8: 1″ – 8 x 8″ Long) and plain round stems (RDL2: 3/4″ x 4″, RDL3: 7/8″ x 4″, RDL4: 1″ x 4″, RDL5: 1 3/8″ x 4″), allowing flexible mounting options. Contact us for compatibility with your equipment.
Where can I buy the Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel?
The Heavy Duty Stem Caster G15 with PCI Crown Tread Polyurethane on Cast Iron Core Wheel is available at www.castercity.com or get more details there, shipped from Texas, Ohio, or Washington. For custom setups or questions, call Caster City at 800-501-3808 or email sales@castercity.com.
Key Features
- Construction: Zinc-plated steel frame, 1/4″ thick legs welded inside and out
- Weight Capacity: Up to 1,500 lbs per caster (manual, infrequent use, no abuse)
- Wheel Sizes: 4” x 2” to 8” x 2” (2″ width only) with “PCI” Crown Tread Polyurethane on Cast Iron Core
- Bearings: Roller bearings (standard), Sealed Precision Ball Bearings (optional) with spanner bushings
- Brake Options: No Brake, TB – Top Lock Brake (+$10.00), FCB – Heavy Duty Weld On Face Contact Brake (+$50.00), TL – Total Lock Brake (+$25.00), UFCB – Universal Face Contact Brake (+$20.00)
- Fastener Type: Stem mount with threaded (TST1, TSS7, TST2, TSC7, TST8) and plain round (RDL2, RDL3, RDL4, RDL5) options
- Overall Heights: 4” x 2” wheel (5-7/16”), 5” x 2” wheel (6-5/16”), 6” x 2” wheel (7-5/16”), 8” x 2” wheel (9-5/16”)
- Applications: Warehouses, manufacturing plants, food processing facilities, automotive shops, healthcare facilities, retail storage, construction sites, aerospace, defense, pharmaceuticals, electronics assembly, textile manufacturing, marine engineering, renewable energy installations, heavy equipment repair shops, logistics hubs
Application Use
Applications for Stainless Steel Model G15:
- Pharmaceutical Manufacturing: Sterile equipment movers, cleanroom transport carts, autoclave carts for sterilizing tools, mobile storage cabinets.
- Healthcare Facilities: Heavy medical equipment transport (e.g., MRI, CT scanners), sterilizer carts for autoclaving instruments, mobile autoclave units for surgical tools.
- Research Laboratories: Autoclave carts for sterilizing lab instruments, hazardous material transport carts, sensitive equipment movers, mobile workstations.
- Food Processing Plants: Autoclave carts for sterilizing food processing tools, mobile processing equipment, washdown-ready maintenance carts, bakery rack transport.
- Commercial Kitchens and Catering: Autoclave carts for sterilizing kitchen tools, heavy kitchen carts, mobile serving stations, storage carts.
- Dairy Processing: Autoclave carts for sterilizing milk processing tools, cheese press movers, mobile storage units.
- Breweries and Beverage Production: Autoclave carts for sterilizing brewing equipment, keg transport carts, mobile bottling line equipment.
- Fisheries: Autoclave carts for sterilizing fish processing tools, mobile storage units, washdown-ready maintenance carts.
- Cruise Ships and Yachts: Autoclave carts for sterilizing galley tools, passenger service carts, maintenance equipment movers.
- Semiconductor Manufacturing: Autoclave carts for sterilizing cleanroom tools, wafer handling carts, photolithography equipment movers, cleanroom furniture.
- Waste Management: Autoclave carts for sterilizing hazardous waste handling tools, mobile recycling equipment, corrosive waste material transport.
- Textile Industry: Autoclave carts for sterilizing dyeing equipment, mobile fabric carts, maintenance tool carts.
- Pulp and Paper Industry: Autoclave carts for sterilizing chemical pulp tools, mobile processing equipment, maintenance carts.
- Agricultural Processing: Autoclave carts for sterilizing pesticide mixing tools, fertilizer transport carts, mobile storage units.
- Semiconductor manufacturing: wafer carts, bio-carts, Wafer Box Transport Carts
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


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February 13, 2023











