US Manufacturer of Linear Bearings, Ball Screws, Lead Screws, Linear Actuators, Guides, Shafts & Rails
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America’s top supplier of self-lubricating plain linear bearings, linear ball bearings, ball screws, lead screws, linear actuators, shafts, rails, guides, sleeve bearings, V-wheel systems, pillow blocks, industrial drawer slides and slew ring bearings. All products are made at our Roscoe, Illinois factory, 90 miles west of Chicago, ensuring fast, reliable delivery with a quality guarantee.
PBC Linear is a major US manufacturer of linear motion products, including linear bearings, ball screws, lead screws, linear actuators, shafting, rails, and guides, with expedited delivery available from our advanced manufacturing facility near Rockford, Illinois. Since 1983, we have grown from pioneering self-lubricating plain bearing technology into a full-line linear motion supplier serving US industry in automation, packaging, medical, food processing, transportation, aerospace, defense, and heavy industrial applications.
Our ball screw capabilities include miniature and standard sizes, rolled and ground configurations, multiple accuracy grades, ball screw and nut assemblies, end machining, and custom-engineered solutions. These products support general industrial automation as well as demanding aerospace and defense applications requiring reliable actuation, positioning, high load capacity, repeatability, and compact motion systems.
Our 200,000-square-foot US manufacturing facility combines engineering support, automated production, and state-of-the-art CNC machining to deliver consistent quality, fast lead times, and cost-effective linear motion solutions. Domestic manufacturing gives customers direct access to engineering and production resources for standard products, configured systems, custom machining, prototypes, and dependable US-based supply.
With more than 15 pending patents supporting ongoing product innovation, PBC Linear continues to develop technologies that reduce maintenance, improve reliability, and solve demanding motion challenges. From standard linear motion components and ball screws to configured actuator systems and custom-engineered assemblies, we provide the products and application expertise needed to keep US manufacturing moving.
- Linear Bearings — self-lubricating plain bearings, linear ball bearings, and heavy-duty bearing solutions designed for low maintenance, long service life, smooth motion, and reliable performance in demanding industrial environments
- Linear Shafting — carbon steel, stainless steel, and corrosion-resistant shaft options in inch and metric sizes, with precision surface finishes, multiple hardness options, solid and pre-drilled configurations, and custom machining available
- Ball Screws — miniature and standard sizes, rolled and ground configurations, multiple accuracy grades, high thrust capacity, repeatable positioning, efficient power transmission, custom end machining, and ball screw and nut assemblies for industrial, aerospace, and defense applications
- Lead Screws — metric and imperial sizes with anti-backlash nut options, motor integration, captive and non-captive configurations, and solutions for compact, efficient linear positioning
- Linear Actuators — configured electromechanical actuator systems combining screws, bearings, guides, motors, and structural components for automation, positioning, material handling, and custom machine applications
- Linear Rails and Guides — compact and heavy-duty guide systems for smooth, stable linear motion, including solutions for high radial and axial loads, harsh environments, and demanding machine applications
- Hevi-Rail Heavy-Duty Linear Guides — robust steel rail and roller systems designed for extreme loads, long travel, interchangeable components, and rugged industrial equipment
- Telescoping Forks — single, double, and adjustable-depth designs for automated storage and retrieval, material handling, tote handling, and bidirectional transfer applications
- Precision Motion Assemblies — custom-engineered linear motion systems integrating bearings, shafting, screws, guides, motors, mounting hardware, and structural components into application-ready assemblies
- Custom Machining and Engineering — application support, CNC machining, prototypes, configured systems, and custom linear motion solutions from our US manufacturing facility near Rockford, Illinois
- US Manufacturing and Supply — domestic production, responsive engineering support, fast lead times, expedited delivery options, and dependable supply for general US manufacturing, aerospace, defense, medical, packaging, transportation, and heavy industry









