Frequent question: What is spindle motor in hard disk?

Hard Disk Drive (HDD) spindle motors are what cause the disks in HDDs to rotate. The precision of these motors determine the capacity and speed of HDDs, making these components critical to HDD performance.

What is spindle motor in HDD?

A spindle motor is a small, high-precision, high-reliability electric motor that is used to rotate the shaft, or spindle, on which the platters are mounted in a hard disk drive (HDD). … Most HDD spindle motors spin the platters at a constant rate ranging from 3,600 to 7,200 RPM.

What is spindle motor in computer?

While almost everyone is familiar with computer hard disks, only few know that the heart of the hard disk is an electrically commutated DC motor, which is known as a spindle motor. This spindle motor carries the storage disks, which it rotates around its own axis (spindle).

Which motor is used in hard disk?

A typical HDD has two electric motors: a spindle motor that spins the disks and an actuator (motor) that positions the read/write head assembly across the spinning disks. The disk motor has an external rotor attached to the disks; the stator windings are fixed in place.

What do you mean by spindle?

1 : a slender round rod or stick with narrowed ends by which thread is twisted in spinning and on which it is wound. 2 : something (as an axle or shaft) which has a slender round shape and on which something turns. spindle. noun.

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What is the function of spindle shaft?

Definition. A spindle is a rotating shaft with a fixture for holding a tool (in the case of a milling, grinding, or drilling spindle) or a workpiece (in the case of a turning spindle). The spindle shaft serves as a support, a positioner, and a rotary drive for the tool or workpiece.

Which is better SSD or HDD?

SSDs in general are more reliable than HDDs, which again is a function of having no moving parts. … SSDs commonly use less power and result in longer battery life because data access is much faster and the device is idle more often. With their spinning disks, HDDs require more power when they start up than SSDs.

How do hard disks work?

The hard drive contains a spinning platter with a thin magnetic coating. A “head” moves over the platter, writing 0’s and 1’s as tiny areas of magnetic North or South on the platter. To read the data back, the head goes to the same spot, notices the North and South spots flying by, and so deduces the stored 0’s and 1’s.

How does a spindle work?

A spindle provides the twist that turns fiber into yarn. When using a hand spindle, your hands let the fibers slide past each other and then let the twist catch them, a process known as “drafting.” The size of the yarn is determined by how much fiber is caught in the twist.