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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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#687544
Obsolete
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#702187
BALDOR P14G7550 P14G7550
Brand Baldor
Model P14G7550
$525.18 Each
Free Shipping
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#702189
BALDOR P14G7709 P14G7709
Brand Baldor
Model P14G7709
$707.82 Each
Free Shipping
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Obsolete
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Obsolete
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$685.50 Each
Free Shipping
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#39543
BOSTON 61343 BTUTF-B 25H 230/460V3FT AC MOTOR
Brand Boston Gear
Model BTUTF-B
$1,282.72 Each
Free Shipping
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#39674
BOSTON 65459 HYTF-5/8-W AC MOTOR
Brand Boston Gear
Model HYTF-5/8-W
$245.09 Each
Free Shipping
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#39678
BOSTON 65479 LYTF-W AC MOTOR
Brand Boston Gear
Model LYTF-W
$432.33 Each
Free Shipping
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$239.65 Each
Free Shipping