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Home » Motion Solutions » Linear Stages » Direct Drive Linear Motor Stages » Low Profile Linear Bearings – FiberBeam™

Low Profile Linear Bearings – FiberBeam™

The FiberBeam™ series of low-profile linear bearings is designed to be the highest accuracy product in their small profile. With travels of 20, 50, and 100 millimeters, all share a height of only 50 millimeters.

All Dover products can be configured to your specifications.Learn More
LOW PROFILE BEARINGS - FIBERBEAM

Description

The FiberBeam™ series have a unique moving magnet/moving feedback scale design which allows all cables and connectors to be located in a stationary base, avoiding any cable influence on stage movement. Design simplicity makes these positioners ideally suited to cleanroom applications as the carriage floats over a precision-ground base with no cable tracks to generate particles.

The low-profile linear bearings incorporate proprietary porous bearing technology, avoiding the clogging problems common to orifice bearing designs. All models bolt together directly to form XY assemblies without the need for adapter plates. The height of such a stack is a mere 100 millimeters.

Right angle brackets and low-friction spring or air counterbalances are available to permit vertical operation. This allows three axis XYZ assemblies to be easily configured.

In constant velocity applications, tracking errors during motion can be held to +/- 10 nanometers. The use of a single phase, brushless motor in the linear air bearing FiberBeam™ 20 stage provides the high performance of sinusoidal commutation from brush type amplifiers with no commutation required.

Applications

Originally designed to meet the high demands of photonic alignment and assembly systems for fiber optic manufacturing equipment.

Design Features

  • Non-contact low friction linear air bearing for smooth motion
  • Non-contact optical encoder with resolutions to 1 nm
  • 1 micron move and settle times of 15 ms to within 20 nm

Specifications

Base ModelFB-20FB-50FB-100
Travel (mm)2050100
Travel (in)0.91.93.9
Accuracy (μm TIR)11.52
Bi-directional Repeatability (± μm)0.50.50.5
Load Capacity (kg)151515
Flatness & Straightness (μm TIR)0.30.350.4
Total Mass (kg)3.84.55

Options

  • Motor options available: servo
  • Feedback options available: linear encoder (analog or digital)
  • Download the datasheet for additional technical details

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