Expanding Adapter Stem Casters – A Versatile Mounting Solution
At CasterTech Inc., we offer a wide range of caster and wheel solutions designed to meet the diverse needs of our customers. One of the most versatile and convenient mounting options in our product line is the Expanding Adapter Stem system. Whether you’re outfitting furniture, equipment, or carts, this system provides a secure and adaptable way to mount casters in various types of tubing or leg structures.
Expandable Stem Caster System
What Is an Expanding Adapter Stem?
An Expanding Adapter Stem is a specialized mounting system designed to fit into round or square tubing commonly found on furniture legs, carts, and equipment frames. It consists of a rubber or thermoplastic bushing that expands when a central bolt is tightened. As the bolt is turned, it compresses the bushing, causing it to expand outward and press firmly against the inner wall of the tubing, securing the caster stem in place without the need for welding, drilling, or external fasteners.
How Do Expandable Stem Casters Work?
- Insert the stem into the open end of the tube or leg.
- Tighten the bolt using a wrench or socket.
- Bushing expands to grip the inside walls of the tubing.
- Caster is locked in place without external hardware or welding.
This clever design eliminates the need for custom fabrication, making it ideal for retrofits, field replacements, or adjustable setups.
Key Advantages
- Tool-Free Removal: Just loosen the bolt to collapse the bushing and pull out the stem.
- No Welding or Modifications Needed: Ideal for retrofitting applications or adding mobility to existing furniture and equipment.
- Versatility: Works with a variety of tubing sizes—just choose the appropriate adapter to match your tubing’s inner diameter.
- Reusable: The system can be reused across different frames or structures, making it highly economical for shops or facilities with evolving needs.
Common Applications
- Display racks and retail fixtures
- Hospital and laboratory equipment
- Industrial carts and workstations
- Furniture including chairs, tables, and shelving units
- Custom fabrication projects
Choosing the Right Size
To ensure a proper fit, you’ll need to measure the inner diameter of your tubing. Expanding adapter stems are available for a range of sizes, typically from 3/4” up to 1-1/2” or more. At CasterTech, we carry a wide selection of sizes and stem lengths to match your exact requirements.
If you’re unsure of the size you need, our customer service team is happy to assist you in selecting the correct adapter and caster combination for your project.
Why Buy From CasterTech?
Located in Garden Grove, California, CasterTech Inc. has been a trusted provider of quality casters and wheels for years. Our expert team ensures every product meets strict performance and safety standards. With fast shipping, reliable support, and a deep inventory, we’re ready to meet your mobility needs—whether it’s a single set of casters or a bulk order for a commercial rollout. Contact Us today.
Take a look at some of casters featuring expandable applicators: