Crossed-roller bearing ball-screw linear stages offer superior precision and flexibility

Written by: Aerotech Inc | Published:

Aerotech’s ATX series linear positioning stages combine the performance capabilities of a high-precision crossed-roller-bearing positioner with the convenience and simplicity of a ball-screw drive mechanism. Outstanding motion performance and a variety of advanced features offer superb value and make the ATX series an excellent choice for use in high-performance applications.

Aerotech’s ATX series linear positioning stages combine the performance capabilities of a high-precision crossed-roller-bearing positioner with the convenience and simplicity of a ball-screw drive mechanism. Outstanding motion performance and a variety of advanced options and features offer superb value and make the ATX series an excellent choice for use in high-performance applications.

Superior Motion Performance

Featuring anti-creep crossed-roller bearings and a precision-ground, fine-pitch ball-screw, the ATX series boasts excellent geometric performance and minimal angular error motion. With up to 250 mm of nominal travel, these linear stages offer superior minimum incremental step size and in-position stability compared to other stages that utilize recirculating ball bearings. This makes the ATX series ideal for many high-precision tasks such as vertical positioning of sensors and cameras, optics focusing, and beamline measurement and manipulation applications.

Linear Encoder Option

ATX stages offer an integral centre-mounted linear encoder to provide direct position measurement at the stage’s moving carriage. The typical effects of backlash commonly associated with screw drives are virtually eliminated when using the linear encoder as a position feedback device. Applications that require exacting work-point performance benefit greatly from the direct linear encoder. Options are available with either incremental (1 Vpp and digital TTL) or absolute output signals.

Design and Integration Flexibility

The ATX series is designed with a variety of standard features and options allowing them to be easily integrated into a larger subsystem or machine, or to serve as a stand-alone positioning axis. They mount to both metric and English optical tables and feature a versatile customer mounting interface on the moving carriage to which other positioning stages or equipment can be mounted. Brushless, slotless servomotors, with or without a holding brake, as well as stepper motors are available. Vacuum- and cleanroom-compatible variants are also offered.

https://www.aerotech.co.uk/product-catalog/stages/...


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