The new A-62x PIglide series of rotary air bearing stages from PI (Physik Instrumente) have no rolling or sliding elements and deliver frictionless, non-contact motion, resulting in negligible reversal error, better straightness, wobble, eccentricity and velocity stability. These features are ideal prerequisites for high-end industrial applications such as inspection, metrology, calibration, and scanning.
Air bearings replace mechanical contact by a thin film of air that is completely frictionless, resulting in no breakaway stiction or drag friction during operation. The PIglide RM series of motorized rotary air bearing stages are a complete positioning solution designed for accuracy, precision, high stiffness, and ease of use. Featuring high performance, low-cogging frameless slotless torque motors and optical encoders, these stages can be used in any orientation. Various options can be combined to create a solution ideal for point-to-point indexing or constant velocity scanning with a max payload of 13 to 425 kg. The PIglide RM rotary positioners provide velocity to 2,500 rpm and extreme precision with radial motion errors as low as ±50 nm, axial runout as low as ±50 nm, and tilt errors down to 0.3 arc-sec. Coupled with no required maintenance or lubrication, these rotary positioners have a virtually unlimited life.
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