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Actuators

Ball Screws and Lead Screws

Linear Assemblies & Actuators


PBC Linear® produces Ball Screws designed for use in assemblies that incorporate cylindrical or flanged nuts that become linear actuators with the addition of NEMA motors and motor mounts. Ball screw assemblies and actuators typically offer greater speed, and durability with shorter lead times and precise rolling, ensuring consistent lead accuracy along the entire length of the screw. In contrast, lead screw assemblies and actuators are more cost-effective and feature Round or Triangular Constant Force Anti-Backlash Nuts, incompatible with ball screw technology, which manifest 2-4 times less backlash compared to competing products over their lifespan. For both technologies, self-lubricating nuts ensure reliable, maintenance-free, and durable performance.

Lead Screws & Nuts
Lead Screws with Nuts
Miniature Metric Ball Screw Assemblies
Miniature Ball Screws
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Lead Screws with Nuts

PBC Linear® offers advanced Lead Screws and Nuts with Constant Force Anti-Backlash Nuts, ensuring exceptional precision, longevity, and lead accuracy

Features/Benefits of Lead Screws with Nuts

  • CNC Roll Threading provides standard accuracies up to 0.003”/ft, with options for precision lead accuracy down to 0.001”/ft.
  • Proprietary manufacturing processes reduce pitting and flanking, extending the usable life up to 6,000 miles in continuous duty.
  • Made from 300 Series Stainless Steel, with an optional PTFE coating to decrease friction and increase efficiency.
  • All nut styles are self-lubricating for maintenance-free operation over their lifespan.
  • Constant Force Anti-Backlash technology ensures consistent pressure and minimized backlash throughout use.
  • Built to perform in temperatures from -30°C to 120°C, accommodating a wide range of environmental conditions.
  • We produce custom machined journals and ball screw designs to meet specialized application requirements.
  • Nut shapes include triangle, round, and rectangle, with features like constant force anti-backlash for diverse operational demands.

Lead Screw Assemblies FAQ

Applications
  • Industrial automation systems
  • Precision lab equipment
  • CNC machinery
  • 3D printing platforms
  • Robotics
  • Aerospace mechanisms
  • Optical and medical devices
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Miniature Ball Screws

The BSR Miniature Metric Ball Screw Assemblies, featuring Cylindrical and Flange Nuts, boast a robust design, tailored for small-scale, high-precision applications. While made in the USA, they are available in six metric sizes, their compact nature does not compromise on power, with a static axial load capacity of up to 2.144 kN (482 lb). 

Features/Benefits of Ball Screws

  • Designed for small spaces without sacrificing performance.
  • Supports static axial loads up to 2.144 kN (482 lb.).
  • Equipped with polymer wipers to maintain cleanliness and function.
  • Offers both cylindrical and flange nuts for versatile installation options.
  • PBC Linear provides custom designs to meet unique application specifications.
  • Delivered assembled for convenience, with an option for unassembled units.
  • Utilizes a multi-liner ball return system for enduring performance.

Ball Screw Assemblies FAQ

Applications
  • Precision instrumentation
  • Medical devices
  • Aerospace components
  • Robotics
  • Small-scale industrial machinery
  • 3D printing equipment
  • Laboratory automation