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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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Obsolete
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#699602
BALDOR M31204-58 M31204-58
Brand Baldor
Model M31204-58
$15,712.67 Each
Free Shipping
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#2549074
Baldor MVM09154D-AP M3AA 90 LD 4P B5 1.5265W
Brand Baldor
Model MVM09154D-AP
Obsolete
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#701303
BALDOR NAMEPLATES NAMEPLATES
Brand Baldor
Model NAMEPLATES
$98.13 Each
Free Shipping
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#702190
BALDOR P14G7718 P14G7718
Brand Baldor
Model P14G7718
$671.02 Each
Free Shipping
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$1,211.21 Each
Free Shipping
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#39791
BOSTON 66554 BKUTF-B 2H 230/460V3FT AC MOTOR
Brand Boston Gear
Model BKUTF-B
$195.88 Each
Free Shipping
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$3,104.64 Each
Free Shipping
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$853.25 Each
Free Shipping