brendan mcshane
Featured in: 
elevatorworld.com
Articles
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Mar 1, 2025 |
elevatorworld.com | Lee Gray |Pankaj Prasad |brendan mcshane |Kaija Wilkinson
Key words: High-speed elevators, Permanent magnetic (PM) motor, Torque, Motor size, Diameter of the driving sheave D, Diameter of the ropes d, Ratio of D and d, Worn-out, Bearing failure, Number of ropes, Weight of the suspension ropes, Weight of compensation ropesNowadays, permanent magnet (PM) motors, instead of AC geared machines or DC gearless machines, are widely used in machine-room-above elevators.
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