Stepper Motor: The motor that turns a Hard Disk Drive. This motor rotates incrementally and can be controlled without a feedback sensor.
Hard disk components hi-res stock photography and images - Alamy
Inside a stepper motor hard drive: startup test (High Definition) - YouTube
Using and Driving a Stepper Motor (Lego Mindstorms NXT)
Basic Hard Disk Drive Components | Upgrading and Repairing PCs (17th Edition)
Hard Disk Drive technology
New Spin (or lack of) on hard drive technology | Hack Scape
Hard Disk Stepper Motor Speed Controller - Share Project - PCBWay
hardware - Are Hard Drive Motors Stepper Motors? - Electrical Engineering Stack Exchange
HDD Spindle Motor
trying to use motor with 4 pins - Project Guidance - Arduino Forum
Brushless DC electric motor - Wikipedia
Hard Drive Stepper Motor - with high speed spin-up circuit — Parallax Forums
Impression 3D de Floppy disk drive stepper motor mount par Tibuck
Run a Hard Drive Brushless Motor Without Driver - YouTube
hard drive head/seek motor with Arduino? - Electrical Engineering Stack Exchange
Hard Drive Stepper Motor - with high speed spin-up circuit — Parallax Forums
What is a Step Motor?
HDD actuator
HDD Spindle motors - MinebeaMitsumi
What is a Stepper Motor? | All About Stepper Motors | Adafruit Learning System
Old Disc Drives
HDD BLDC Motor
