Most in-stock items ship same or next business day. Shipping rates shown at checkout.
PRODUCT CODE: EA-90
Optimize your caster installations with the Durastar 3/4" ID Rubber Expandable Adapter, engineered to provide a reliable and snug fit for round tubing applications. Designed for insertion into tubing with internal diameters ranging from 0.720" to 0.851", this expandable adapter offers flexible yet secure engagement, reducing vibration and potential wear over time.
The high-quality rubber construction ensures exceptional grip and compression, while also offering long-lasting performance in both industrial and commercial environments. Whether you’re outfitting carts, equipment legs, or mobility units, this adapter helps ensure a seamless interface between the caster stem and the tubing wall.
Efficient and easy to install, the Durastar expandable adapter promotes safety and functionality while maintaining proper alignment under load. Perfect for use with stem casters in maintenance, manufacturing, and facility mobility operations.
Upgrade your mobility solutions with the Durastar 3/4" ID Expandable Rubber Adapter—a simple, high-performance component designed for precision, durability, and long-term reliability. Ensure a stable fit today and reduce costly equipment downtime tomorrow.
Transparent pricing
All pricing and quantity discounts are applied automatically. No promo codes required and no post-checkout price changes.
Upfront shipping costs
Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.
Business-friendly ordering
We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.
Real support from product specialists
Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.
Trusted by industrial and commercial customers
CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.
When will my order ship?
In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.
Will shipping cost more at checkout?
Shipping is not free on most orders. Your final shipping cost is shown before payment.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.
Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.
Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.
Designed with performance and precision in mind, the Durastar 3/4" ID Rubber Expandable Adapter is the go-to solution for securely mounting stem casters into round or hollow tubing. With an expansion range of 0.720" to 0.851", this adapter ensures a tight and stable fit across a variety of tubing sizes commonly found in carts, racks, and equipment legs.
Made from high-quality compression-grade rubber, this adapter delivers long-lasting durability and dependable performance in both industrial and commercial applications. Its flexible yet firm design allows it to compress during insertion and expand once seated, providing excellent vibration resistance and preventing caster stem slippage during use.
The tool-free installation process ensures ease of use, saving time and reducing downtime during maintenance or caster replacement. Whether you're outfitting mobile carts, medical equipment, warehouse systems, or facility fixtures, this rubber expandable adapter delivers strength, adaptability, and peace of mind.
Engineered and manufactured to meet the needs of today’s demanding environments, this Durastar rubber insert reinforces your caster assemblies and enhances mobility system integrity. Its reliable design supports optimal load distribution and alignment—key elements in preventing uneven wear and improving caster life span.
Backed by a trusted name in mobility hardware, the Durastar 3/4" ID Rubber Expandable Adapter offers consistent performance, user-friendly installation, and enhanced equipment safety. Make the smart choice for your caster integration needs—choose Durastar for quality, precision, and long-term reliability.
$9.00
Trusted by 100,000+ Industrial and Commercial Buyers | 98.7% on-time shipment rate
Designed for engineers, manufacturers, and material handling professionals
