Ball lock differential friction rings manufactures

The Best Ball Lock Differential Friction Rings Manufacturers

For more than half a century, our company has been designing, developing and manufacturing remarkable products that have been evaluated and praised for great quality, safety, and excellent functionality.

International Expanding Shafts S.R.L. specializes in the production of many items including differential rewinding shafts, expanding shafts, expanding chucks with adaptors, expanding sleeves, safety chucks and many other products. Among other things, we’re globally known as the best ball lock differential friction rings manufacturers.

Our ball lock differential friction rings

Thanks to the innovative design and special technical features, our friction ball rings facilitate the operator’s daily work by reducing downtime, cycle time and machine cost. Made with a double row of expanding balls, absolutely interchangeable, these rings ensure an excellent locking and friction of the slits to be rewound. Using high-end technologies, the product is made of aluminum, steel, plastic bushed, plastic-steel bushed or plastic-aluminum bushed, with minimum width rings 7mm (for 3” cores) up to 60mm.

Why do we excel?


Our experience and expertise in the service of the printing, paper and converting industries with the in-house manufacturing and sale of technologically advanced expanding air shafts valued in Italy and all over the world for their high-quality, while meeting all the required standards, has enabled us to become the best ball lock differential friction rings manufacturers.


Thanks to our qualified engineers and technicians, we have developed outstanding systems for the production of expanding air shafts. Furthermore, the advanced CNC machinery and constant research have helped us design top-quality products with excellent operational features, patented worldwide, distinguish them from all the others present on the market, both domestically and internationally.

For additional information regarding our products, please don’t hesitate to contact us! We’re a customer-oriented company and customer-service is our top priority!