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Description: Most industrial motors require AC (alternating current) voltage whose polarity oscillates 60 times a second (for a frequency of 60 Hertz) between positive and negative. Single phase AC motors have brushes just like DC motors. Most of them have capacitors to assist starting and to establish the direction of rotation. Changing direction implies changes in the capacitors’ connection. Speed is directly proportional to the applied voltage (just like DC motors). Usage is restricted to low-power uses (home appliances like vacuum cleaners, washing machines, coffee grinders, or power tools like rotary hammers etc.). For higher power requirements, three-phase AC motors are used. These do not have carbon brushes to wear out, their rotors (called squirrel cages) have no electrical connections, thus making them extremely robust and long-lived. Only the stator windings are connected to the power line. They just keep turning as long as their ball bearings are OK. Changing direction requires swapping any two of the three phase lines. Speed control is done by modifying the frequency of the AC delivered to the motor; this can be done using complex devices called AC drives.
Item ID
Item
Price
Quantity
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$697.90 Each
Free Shipping
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$1,996.99 Each
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$1,725.74 Each
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$5,296.93 Each
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Obsolete
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$300.50 Each
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Obsolete
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#39646
BOSTON 65355 HRTF-W AC MOTOR
Brand Boston Gear
Model HRTF-W
$412.21 Each
Free Shipping
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#39679
BOSTON 65480 MYTF-W AC MOTOR
Brand Boston Gear
Model MYTF-W
$502.00 Each
Free Shipping
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#39734
BOSTON 66278 SUTF-B 20H 230/460V3 AC MOTOR
Brand Boston Gear
Model SUTF-B
$3,790.95 Each
Free Shipping
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#39749
BOSTON 66364 DUB-B 1/4H 230/460V3 AC MOTOR
Brand Boston Gear
Model DUB-B
$829.42 Each
Free Shipping
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#39761
BOSTON 66425 DUTB-B 1/4H 230/460V3 AC MOTOR
Brand Boston Gear
Model DUTB-B
$654.42 Each
Free Shipping