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Download STP FileDownload 2D File4″ Soft Gray Rubber Wheel – Model 9 Rigid Caster
$33.23
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
Durometer
75A ± 5
ISO 9001
ISO 9001:2015 Certified
Fork Finish
Zinc Coating
Wheel Width
2"
Wheel Bearing
Roller
Maximum Capacity (lbs)
300 lbs
Overall Height
5-5/8"
Color
Black
Plate Fastener Type
Mounting Plate, Top Plate
Plate Mounting Type
Top Plate
Weight
4 lbs
- Description
- FAQ
- Application Use
- Reviews
- CASTER CITY GUARANTEE
- Measurement Conversion Table
- Articles and How to Guides
Description
Model 9 Rigid Caster is the matching plate caster for the Model 9 Swivel Caster. When hand powering equipment supported by 4 swivel casters it can be difficult to control the direction you are pushing or pulling. Rigid casters assist in controlling equipment being moved in straight line travel. Equipment with both rigid casters can not move sideways. Rigid Casters are usually installed at the opposite end of the push handle. Rigid Casters have 2 legs perpendicular to the mounting plate. Leg thickness is 1/4”. The axle diameter is 1/2” long and is designed to use wheels with a hub width of 2 7/16”. This caster is constructed from stamped steel. Rigid Casters can carry more weight than swivel casters because they do not have an offset. Other mounting plate sizes and wheel bearing types are available on request.
This swivel caster has a soft gray rubber wheel that is non-marking in nature and is bonded to a plastic center. The axle diameter of this caster wheel is 1/2” and the width of the wheel is 2”. Injection molded wheels such as this soft rubber wheel are not the best choice for standing loads that are moved infrequently.
*This Plate Caster Model 9 contains the Gray Soft Rubber Wheel.
The Photo Displayed on CasterCity.com is the 4″ Caster Wheel.
This caster is available in Stainless Steel – click here. This is an excellent caster for wet or corrosive applications if your total weight exceeds 1000lbs. It comes with the same large selection of wheels, some of which are also NSF and ROHS compliant.
For more information and help placing an order, give us a call at 800-501-3808.
FAQ
FAQ – RF Soft Gray Rubber Wheel in Model 9 Caster
What environments is the RF Soft Gray Rubber Wheel best suited for?
The RF Soft Gray Rubber Wheel is ideal for Pharmaceutical Laboratories, Hospitals, Food Service, and other Institutional applications where quiet operation, floor protection, and chemical resistance are priorities.
How does the RF wheel compare to polyurethane wheels?
The RF wheel offers a softer ride than polyurethane, absorbing shock and reducing vibration, which enhances equipment life and protects cargo and floors.
What are the main benefits of the RF wheel in the Model 9 caster?
Pairing the RF wheel with the Model 9 caster provides a non-marking, quiet, and shock-absorbing solution with precision sealed ball bearings that require no maintenance, perfect for sensitive environments.
Are there any limitations to the RF wheel?
Yes, it’s not suited for shock, overloading, abuse, obstructions, poor floors, or prolonged standing loads, as it may develop flat spots. It’s also harder to roll under load—reduce capacity by 50% for manual movement.
Why is the Model 9 caster so popular for industrial use?
The Model 9 caster is favored for its low cost, wide wheel options, and rugged design, featuring 2 rows of balls on heat-treated raceways and a welded nut and bolt kingpin for durability.
Can I use the Model 9 caster with the RF wheel in wet or corrosive conditions?
The standard zinc-plated Model 9 will rust in wet or corrosive environments. Opt for the Stainless Steel Model 9, made from 304 stainless steel, for those conditions.
What maintenance do the RF wheel and Model 9 caster require?
The RF wheel’s precision sealed ball bearings need no maintenance. The Model 9 swivel caster has lubrication fittings for its moving parts, keeping maintenance simple.
What bearings come with the RF wheel?
The RF wheel features precision sealed ball bearings, offering maintenance-free, quiet, and smooth performance.
How do I choose the right RF wheel diameter for manual movement?
For easier manual movement, reduce the load capacity by 50% and select the largest practical wheel diameter to improve rolling efficiency.
Application Use
Application Use Plate Industrial Caster Model 9:
The Plate Model 9 is designed for medium to heavy-duty jobs and are built for floor protection, mobility, and ergonomic effectiveness in a variety of industries, such as:
Manufacturing Industry
- Assembly line carts
- Tool carts and cabinets
- Workbenches
- Assembly stations
- Die and mold carts
- Material handling carts
- Engine stands
- Transmission jacks
- Wing assembly jigs
Warehousing and Distribution
- Stock picking carts
- Shipping and receiving carts
- Flatbed carts
- Dollies
- Mobile shelving units
Automotive Industry
- Vehicle assembly line equipment
- Parts transport carts
- Tool chests
- Battery carts
- Mobile diagnostic equipment
Aerospace Industry
- Aircraft maintenance platforms
- Engine transport dollies
- Wing and fuselage assembly jigs
Food Processing and Service
- Ingredient bins
- Mixing bowls on stands
- Oven racks
- Bakery carts
- Kitchen carts
- Serving trolleys
- Laundry carts
Healthcare
- Hospital beds
- Medical carts
- Mobile diagnostic machines
Retail
- Mobile display racks
- Shelving units
- Point-of-purchase displays
- Shopping carts
Construction and Maintenance
- Mobile scaffolds
- Work platforms
- Tool carts
- Generator carts
- Compressor carts
Agriculture
- Farm machinery parts transport carts
- Greenhouse carts
Marine
- Boat mold transport carts
- Deck equipment movement
Data Centers and IT
- Server rack carts
- Mobile cabinets
Entertainment and Events
- Stage equipment carts
- Lighting and sound equipment stands
- Mobile platforms
Laboratories
- Lab carts
- Equipment stands
Printing and Publishing
- Paper roll carts
- Printing press component transport
Textile Industry
- Fabric roll carts
- Sewing machine stands
Chemical Industry
- Drum dollies
- Cylinder carts
HVAC and Electrical
- HVAC equipment carts
- Electrical panel carts
Woodworking and Metalworking
- Mobile worktables
- Saw stands
- Material handling carts
Waste Management
- Waste containers on wheels
- Recycling bins
Fitness Centers
- Mobile weight racks
- Equipment stands
Transportation Hubs
- Baggage carts
- Luggage carts
Cold Storage and Refrigeration
- Refrigerated warehouse carts
- Food processing plant equipment
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
Articles
October 28, 2025
