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Engineering notes

Johnson Electric motor selection articles

Practical notes for OEM teams comparing torque-speed curves, actuator duty cycles, compliance evidence and validation planning.

Motor selection engineering note
Engineering note

What's a Ball Bearing? A Motion Control Buyer's Honest Answer

A 12-year motion control spec buyer explains what a ball bearing really is, why 'balls and rings' is dangerously incomplete, and how a simple bearing checklist saved thousands in rework on Johnson Electric DC motors, micro linear actuators, and stepper motor controller systems.