Why Most Engineers FAIL at Motor Selection (And How to FIX It)

Publicado em: 25 Junho 2026
no canal de: Master Mechanical DESIGN

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Electrical motor selection is one of the most critical tasks in machine design, yet it is also one of the most misunderstood.

Many engineers can calculate torque and power, but still end up with motors that are oversized, underpowered, unstable, or simply unsuitable for the application.

In this video, we will go through the complete motor selection process step by step and understand the common mistakes engineers make during motor sizing.

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Chapters:
00:00 Motor selection process
02:51 Type of electrical motors and their selection
03:36 AC Induction motor
05:24 BLDC motor
06:39 Steeper motor
08:21 Servo motor
10:26 Motor selection mistakes
14:25 Motor sizing process- Power, Torque and speed
16:02 Motor’s Load torque formulas
16:58 Motor Load torque calculation
18:28 Motor Load torque measuring method
19:03 Acceleration torque
20:04 MOI of linear motion load
22:48 Motor acceleration calculation
26:12 Motor acceleration torque calculation
26:52 Gearbox ratio calculation
29:00 Motor selection from catalogue
29:41 Servo and stepper motor selection mistakes
32:08 Thank you | Silver button award

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#electricalmotor #servomotor
#mechanicaldesign #Machinedesign #Mechanical #Mechanicalengineering #mastermechanicaldesign

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