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4″ Green Polyurethane on Iron – Stem Caster G15
$221.54
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
Maximum Capacity (lbs)
800 lbs
ISO 9001
ISO 9001:2015 Certified
Wheel Core Material
Iron
Wheel Diameter
4"
Caster City Recommendation
Ollie Recommends!
Non-Marking
Yes
Kingpinless
Yes
Wheel Width
2"
Wheel Bearing
Roller
Overall Height
5-7/16"
Swivel Radius
3-3/8"
Color
Green
G15 Stem Zinc Add Ons
RDL2, RDL3, RDL4, RDL5, TSC7, TSS7, TST1, TST2
Model G15 Fastener Type
Round Stem, Threaded Stem
Mounting Type
Stem
Weight
7 lbs
- Description
- FAQ
- Application Use
- Reviews
- CASTER CITY GUARANTEE
- Measurement Conversion Table
- Articles and How to Guides
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.
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”!
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)
Polyurethane Caster Wheels – Superior Performance Casters
- PY
- PYR
Polyurethane Caster Wheels from Caster City offer superior performance compared to rubber wheels, excelling in resistance to grease, oil, cutting, chunking, and abrasive wear. Available in green (PY) or red (PYR) polyurethane tread bonded to a durable iron core, these wheels are designed for versatility and can be used on nearly any factory floor. With a tire hardness of 90–95 Durometer (Shore A), they provide excellent durability while maintaining a temperature range of -20°F to 180°F. The bonding agent securing the polyurethane tread to the iron center may be affected by certain chemicals, high impact, overloading, or heat buildup, so proper application is key. Available in widths of 1.25”, 1.5”, 2”, and 3” and diameters up to 16”, these wheels support a variety of bearing types, including precision sealed ball bearings, roller bearings, or stainless steel bearings, ensuring smooth operation across diverse industrial settings.
The primary advantage of polyurethane wheels over rubber is their significantly higher load capacity – up to three times that of a comparable rubber wheel under ideal conditions on smooth floors. This makes them an excellent choice for heavy-duty applications in industries such as material handling, manufacturing, warehousing, and automotive, where they can be used on platform trucks, assembly line carts, or heavy equipment movers. While polyurethane wheels roll more easily than rubber at the same load, they may become less easy-rolling when pushed to their maximum capacity. Capacity ratings serve as a guideline for safe operation, but actual performance depends on usage, service conditions, and environmental factors. To ensure optimal performance, consult Caster City’s engineering team at 800-501-3808 for guidance on high-impact or high-temperature applications.
Features
- Material: Green (PY) or Red (PYR) polyurethane tread chemically bonded to an iron core.
- Superior Resistance: Outperforms rubber in resistance to grease, oil, cutting, chunking, and abrasive wear.
- Tire Hardness: 90–95 Durometer, Shore A for durability and strength.
- Temperature Range: -20°F to 180°F, suitable for varied environments.
- Sizes: Available in 1.25”, 1.5”, 2”, and 3” widths; diameters up to 16”.
- Bearing Options: Compatible with plain bore, precision sealed ball bearings, roller bearings, or stainless steel bearings.
- Floor Compatibility: Safe for most factory floors, unlike metal wheels.
FAQ
What is the Heavy Duty Stem Caster G15 with PY Polyurethane on Iron Wheel, and what’s it used for?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 green “PY” 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”. 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 in warehouses, manufacturing plants, food processing facilities, and other industrial settings where a resilient, floor-protective green wheel is needed, 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 PY Polyurethane on Iron Wheel?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 green “PY” wheel offering up to 1,400 lbs capacity. 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 PY Polyurethane on Iron Wheel?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron Wheel accommodates 2″ wide green “PY” 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.
What materials are used in the Heavy Duty Stem Caster G15 with PY Polyurethane on Iron Wheel?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 green “PY” wheel has a polyurethane tread chemically bonded to an iron center, offering resilience 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 PY Polyurethane on Iron Wheel?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron Wheel uses precision machined combination load and thrust bearings with a heat-treated raceway, offering options including Ball Bearings (B), Bronze (BRNZ), Delrin Bearings (D), Precision Sealed Ball Bearings (PS), Plain Bore (P), and Roller Bearings (R), depending on the wheel configuration. 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 PY Polyurethane on Iron Wheel?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 PY Polyurethane on Iron Wheel handle wet or corrosive environments?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron Wheel’s zinc-plated steel frame resists rust, with potential stainless steel options for wet or corrosive environments—contact us for availability. The green “PY” wheel’s polyurethane tread offers some chemical resistance, suitable for manual use in such conditions.
Which industries use the Heavy Duty Stem Caster G15 with PY Polyurethane on Iron Wheel?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 where floor protection and resilience are valued.
How do I maintain the Heavy Duty Stem Caster G15 with PY Polyurethane on Iron Wheel for long-term use?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 using it with powered equipment to maintain longevity.
Can the Heavy Duty Stem Caster G15 with PY Polyurethane on Iron Wheel be used with powered equipment?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 PY Polyurethane on Iron Wheel?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 PY Polyurethane on Iron Wheel?
The Heavy Duty Stem Caster G15 with PY Polyurethane on Iron 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 green “PY” Polyurethane on Iron
- Bearings: Ball (B), Bronze (BRNZ), Delrin (D), Precision Sealed Ball (PS), Plain Bore (P), Roller (R) (varies by wheel type)
- 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
If you have any questions about your measurements, please call 800-501-3808
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April 29, 2025
