LSS - Single Bearing Positioning Stage

The single bearing positioning stage is designed for long-stroke, high-acceleration closed position loop servo applications.

The small cross section single bearing positioning stage features a moving coil 3-phase cog-free brushless motor with single rail, two integral linear bearings and encoder. The stage features lightweight moving parts for higher acceleration of light loads. An open linear glass scale is available to meet customer requirements. Resolutions available are 1 and 5 micron.

The cog-free brushless linear motor provides smooth, high reliability, non-contact operation without backlash. Excellent dynamic and settling time performance is a result of the superior stiffness of brushless motors.

Single bearing positioning stages can be stacked on top of each other to provide a multiple axis positioning system. Typically, a wider cross section is used as the base axis for stability and stages with smaller cross sections stacked on top.

• High forces up to 746 N [169 Lbs.]
• High accelerations to 44 m/s2 [4.5 g’s]
• Speeds to 2.5m/s [100 in/sec] with encoder resolution <=1 micron
• High speeds to 200 in/sec [5 m/s] with encoder resolutions > 1 micron
• Payloads to 23 kg [50 Lbs.]
• Stroke length to 2.44 m [96 in]
• Linear encoder feedback of 5 micron resolution standard
• Single-axis stage with cog-free linear motor, linear bearing, linear encoder, limit switches, and cable carrier
• Turnkey positioning system
• High stiffness linear recirculating bearings
• High reliability
• Low maintenance
• Use with Trapezoidal or sinusoidal 3-phase brushless control and single-axis motion controller to close the position loop