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Details
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Characteristics
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Advantages
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Thin multipolar rare earth disc magnet
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Very low rotor inertia
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Very high acceleration
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Very short iron circuit made of SiFe laminations
Coils placed near to the airgap.
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Low iron losses
More torque at high step rates
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High start/stop frequencies
High speeds
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Independent magnetic circuit
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No coupling between phases
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High power/volume ratio
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Simple magnetic circuit
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Sinusoidal torque function, low detent torque
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Superior angular resolution in microstep mode
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Optimally designed magnetic circuit
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Torque constant is linear up to 2
to 3 times nominal current
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High peak torques
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High energy magnet
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High power to weight ratio
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For motors in mobile applications
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Details
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Characteristics
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Advantages
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Radially magnetized permanent magnet rotor
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Windings can be designed for optimum performance
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Low cost construction
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Bobbin wound coil design
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Long life lubrication
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Ease of use in application
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Sintered bronze bearing design - Ball bearings optional
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Simple mechanical construction with proven
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Simple open loop positioning
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Step angle variation - 3.6 degree to 20 degree
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design characteristics
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Customization to meet application demands
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Simple motor construction
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Unipolar or Bipolar windings
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Advantages
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