Thomson high-load ball screws are ideal for large fabrication machines in injection molding, pressing and metal fabrication. They move heavy loads in horizontal and vertical axes accurately and safely, while providing long and reliable life with minimum maintenance. Our standard portfolio contains sizes up to 160 millimeters in diameter with a maximum dynamic load of up to 1,440 kN. Thomson also has the capability to customize these ball screws according to your specific application requirements.

High-Load Ball Screw Highlights:

• Increased capacity for high load applications at high speeds and long lifetimes
• More economic solution vs. roller screws
• Lead accuracy of up to ±6 µm/300 mm
• Compact, simple design allows for downsizing, less weight
• Optimized ball nut design for maximizing load capacity
• Available with up to 15 m screw length and with single or double nuts
• Multiple preloading options available
• Smooth, quiet motion

Thomson Bearing Supports are a complete package for simple mounting of Thomson ball screw assemblies. They feature rugged steel construction, a low profile, and a compact design. Both Base and Flange mounting configurations are available - with dual angular contact bearings or floating radial bearing. All Thomson Bearing Supports are available off-the-shelf, come pre-assembled, and are ready for immediate installation.

Bearing Support Highlights:

• Rugged steel construction
• Low profile, compact design
• Base or Flange mounting configurations
• Pre-assembled and ready for installation
• Available off-the-shelf

Precision Plus Ground and Whirled Ball Screw Assemblies are the highest precision product available, with standard lead accuracies of ±6µm/300mm. These ball screw assemblies feature a FL-Style ball nut, precisely preloaded to customer specifications. This unique nut design provides high repeatability and high stiffness for the most demanding ball screw applications. Each nut comes standard with an integral Delrin wiper to protect against chips and other debris.

Precision Plus Ground Highlights:

• Lead accuracies up to eight times those of conventional ball screws for an immediate improvement in machine accuracy
• Zero-lash, preloaded designs available with a high stiffness that provides positioning accuracy and repeatability for machine tools, robots, material handling systems, electronic component insertion systems, and more
• A gothic arch ball groove geometry to extend service life, and optimize stiffness in preloaded assemblies
• Maximum lead error - ±6µm/300mm (.0005"/ft)
• Integral wipers and flanges contributing to system cleanliness and mounting ease
• Optimum efficiency and cost savings when replacing expensive hydraulic and pneumatic systems
• Predictable service life for the most reliable system designs

Metric Rolled Ball Screw Assemblies are designed to provide quiet, smooth running, efficient performance. Ball screws are manufactured using Thomson’s patented, German-engineered Precision Screw Forming (PSF) Technology, which provides high accuracy (±23µm/300mm standard) with the manufacturing efficiency of rolled processes. Ball nuts are manufactured with one of three ball return systems (depending on the diameter and lead of the screw) made with reinforced steel, making them extremely durable and ideal for high speed, high load, and/or high temperature applications. Ball nuts come standard with profiled wipers to contain lubricant and help repel fine contaminants (dust, powder, etc.).

Precision Rolled Metric Highlights:

• Manufactured by patented PSF (Precision Screw Forming) technology
• Offers low cost, high precision performance in applications typically requiring ground screws
• Responsive manufacturing & delivery times.
• No hard spots in the screws that can mar the ball surfaces and shorten screw life.
• Smoother and quieter running due to superior surface finish.

Miniature Metric Precision Ball Screws are an efficient and cost-effective solution in a small envelope, ideal for use in small spaces, like in laboratory, semiconductor, and medical applications. Ball screw assemblies range from 8 to 12mm in diameter with leads from 2 to 5mm - all with standard lead accuracies of ±52µm/300mm.

Highlights:

• Design maximizes load capacity
• Flexible ball nut mounting configurations
• Higher load capacity, longer life
• T7/P5 standard accuracy class
• Cost-effective, small envelope
• Rapid prototyping
• Smooth, efficient, ideal in small places
• Wide assortment of leads available
• Clearance held to .05 mm max
• Optimum performance in low and high lead assemblies

Thomson Precision Rolled Ball Screws come in a full range of diameters, leads, and ball nut configurations, in either preloaded or non-preloaded types, all in industry-standard envelopes. They provide dependable accuracy and repeatability at an economical price. Featuring Tangential Ball Returns, a Thomson design which minimizes recirculated bearing ball deflection, for smoother and quieter operation. Standard flanges are offered for many of our ball nut models

Precision Rolled Highlights:

• When replacing conventional actuation systems (such as acme screws, hydraulics, or pneumatics), ball screws can use smaller, less-expensive drive motors reducing the need for auxiliary equipment
• Over 90% efficiency with a constant low coefficient of friction
• Dependable accuracy and repeatability at an economical price
• Gothic arch ball groove geometry extends service life, reduces lash, and optimizes stiffness in preloaded assemblies
• Optional wiper kits and end support blocks increase service life
• Available in a full range of diameters, leads, and nut configurations, either preloaded or non-preloaded types
• Non-standard lengths available