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MBT: Innovative Spindle Design
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Spindle technologies have advanced through the years to keep
up with industrial needs. As new applications require spindles with greater accuracy,
higher speed, and lower vibration, Colibri's Motorized Bearing Technology (MBT)
allows designers to meet the ever-increasing demands of industry.
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| MBT Design |
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MBT Technology: Cross Section |
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The radial bearing and the electrical motor are integrated in a single unit -
the electrical motor also serves as a radial bearing. A spindle using Colibri's
MBT technology is more compact (because of its shorter shaft) or provides higher
stiffness (using the original shaft length).
This design provides significant advantages when integrated into systems requiring an accurate,
reliable and compact spindle.
The MBT innovation in spindle design opens the way for Automatic Shaft Change (ASC) technology,
whereby the shaft and integral tool can be changed automatically with no loss of precision or tool balance.
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| MBT Advantages |
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MBT design technology offers the following advantages: |
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Compact geometric dimensions |
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Lower spindle weight |
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High-speed rotation |
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Higher self-frequencies |
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Lower vibration amplitudes |
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Higher radial bearing stiffness |
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Higher load capacity |
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Lower production costs |
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Lower maintenance costs |
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| MBT Bearing Shaft First Mode |
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Conservative Design |
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Improved Design |
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MBT Design |
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MBT Technology: A Stiffer Bearing Reduces
Vibration Amplitude |
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