Company Profile

Specialty Motions, Inc.

SMI, established in 1990, is a distributor of linear motion products, including linear bushings, precision ground and hardened shafting, ball and leadscrews, simple actuators, square rail technology, precision slides, cross rolling elements and actuation assemblies. SMI can also aid in the design process.

Company Info

951-735-8722, 800-283-3411
1801 Railroad Street
Corona, CA


  • in Ball Screw Actuators

    Specialty Motions Inc offers ball screw products from Thomson, NSK and Abba including a variety of ball screws, ball splines, linear screws, cross roller ways and rail linear assemblies.

  • in Ball Slides

    Specialty Motions, Inc. offers BS8-6, BS48-9, BS32-9, BS24-6, and BS16-6 ball slides. Model BS8-6 ball slides have 1.5 lbf load capacities, 0.38" carriage widths, 0.50" travel lengths, and 0.0005"/travel straight line accuracies. These slides utilize True Travel anti-cage creep technology, they feature black anodized finish, and center hole standard for strokes 1" and over. They are constructed from aluminum, hardened steel, and mild steel materials.

  • in Belt Drive Actuators

    Specialty Motions, Inc. offers belt drive actuators. These actuators are compact in size, have a load capacity of up to 1955 lbs., and can handle speeds of up to 275"/sec. Other features include: an AC servo motor, a maximum stroke length of 2500 mm, a high rigidity base structure, a double slider option for large moments and overhang, etc.

  • in Crossed Roller Slides

    Specialty Motions, Inc. offers ball slides and crossed roller slides that utilize True Travel anti-cage creep technology. These slides are predictable, smooth, pre-loaded, pre-assembled, black anodized finished, and ready for immediate installation. They have 0.0005"/inch straight line accuracies, 0.001" positional repeatability ratings, and a 0.003" coefficient of friction.

  • in Positioning Tables

    Specialty Motions manufactures a variety of positioning tables, including cross roller configurations with a straight line accuracy of 0.0001/inch of travel and a coefficient of friction of 0.003" typical. This model features an aluminum carriage and base with a hardened steel crossed roller rail set.

  • in Slides

    Specialty Motions Inc. distributes ball and cross roller slides from many companies, including ABBA, Applied Motion Products, NSK, NB, and more.

  • in Stages

    Specialty Motions produces a series of low cost, high precision, Easy Slide ball slide positioning stages with True Travel anti-cage creep technology for versatile, smooth, accurate travel used in gauging and positioning light to heavy loads. Pre-assembled and pre-loaded for immediate installation, mounting can be done with their standard hole patterns with standard fasteners or can be created to your requirements including metrics.