Linear electric motor
Baldor Electric Company
Linear motors provide unique speed and positioning performance advantages. Linear motors provide direct-coupled motion and eliminate mechanical transmission devices. They offer substantial improvements over applications using ball screws, timing belts, etc. The rugged mechanical design provides accurate motion and precision positioning for hundreds of millions of cycles. Baldor linear motors and stages are used in thousands of successful applications worldwide.
Linear motors provide the following advantages:
High repeatability - resolution to 0.1 microns - this makes sure all parts produced are accurate and identical
Highly accurate - to 2.5 micron/300 mm - provides precise machine operation for precision parts
No backlash - direct drive has no backlash such as with lead screws, gears, etc. this improves the accuracy of the part or operation
Faster acceleration - from 1 to over 10 G's - this leads to shortened cycle times and improved productivity.
Higher velocities - speeds to over 8 meters/sec - to position the payload faster
Long term reliability - only two parts with only one moving part - this leads to simplicity and improves the applications reliability
No wear or maintenance - no contacting parts, thus reducing component friction and wear
Ease of installation - linear motors are designed to allow for alignment tolerances. Misalignment produces no degradation of performance
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