Screw Linear Modules

Screw Linear Modules use a leadscrew or ballscrew as the driving mechanism. The screw rotates inside a nut attached to the carriage. The motor connects directly or via a coupling. Guide rails constrain carriage motion. Screw pitch determines linear travel per motor revolution.

A comprehensive review of TallMan Robotics Screw Linear Moduless from a technical standpoint.

Linear actuators of screw rod(ball screw linear module) is a single composite part driven by motor, which is the module platform for optimal design.

It is composed of ball screw and U-shaped linear slide rail. Ball screw linear module is independently developed by using the trend of compounding, lightweight and modularization, combined with the design concepts of high precision, high load and high rigidity. It can save installation space and maintenance cost; It has been widely used in precision machinery, semiconductor equipment and other mechanisms requiring precision positioning.

The module is composed of a driving screw, a driven nut, and a linear bearing, which together form a closed loop system.

This system allows for smooth and precise motion, with high load-carrying capacity and minimal backlash. The screw and nut combine to create a high torque transmission, which is capable of moving large loads with ease. The linear bearing is specially designed to reduce noise, wear, and friction. All components are carefully engineered to ensure optimal performance. Screw Linear Modules, also named as screw driven linear actuators, or screw drive linear actuators too. In our series, we’d like to introduce TMS65 type to you. The width of this type is 65mm in aluminum profile, with max payload up to 30kgs. 

The table shown lists Screw Linear Moduleswith corresponding photos and complete technical data.

 PMC executes end-to-end testing throughout the manufacturing process.

 TallMan Robotics supports quality control with its own lab environment and inspection equipment.

Hardness tester	Altimeter	Laser interferometer	Quadratic element	Vibration tester	Soundproof room

Watch the videos; we carry out systematic testing in-process and before shipment.

Custom export packaging uses plywood boxes to secure carton contents.

FAQs about Screw Linear Modules

• What is the difference between a leadscrew and a ballscrew module?

       A leadscrew uses sliding contact (nut on screw). A ballscrew uses recirculating balls.  Ballscrews last longer. Leadscrews cost less. Choose ballscrew for high cycle applications.

• What end supports does a screw module require?

      Fixed end support (bearing block with angular contact bearings) holds the screw axially. Floating end support allows thermal expansion. Most modules include both ends. Missing floating support causes screw buckling from heat expansion.

• Does a screw linear module need a coupling?

      Yes, a flexible coupling connects motor shaft to screw. The coupling compensates for misalignment up to 0.2mm. Use a bellows coupling for high precision. Use a jaw coupling for shock loads. Do not directly weld or clamp motors.

• Can I replace only the nut or only the screw?

       Replace both together. A worn screw damages a new nut quickly. A worn nut damages a new screw. Matching wear patterns ensures proper fit. Use original manufacturer parts. Generic screws have different ball sizes. 

You are welcome to  https://www.youtube.com/@tallmanrobotics to watch our video centre for more projects or visit our website load down e-catalogues for further technical data.