Spindle Motors Online for Sale in South Africa | DIY Geek

It can be used in a variety of electronic scenarios, especially if you are building (or rebuilding) an HDD drive. These highly precise motors are also highly reliable. You will want to look at the specifications of the individual spindle motors to ensure they’re capable of providing the kind of power that you need.

Platter is a thin, high-precision aluminum or glass disk that is coated on both sides with a high precision magnetic material and which is used in a HDD to store data. Modern HDDs typically contain multiple platters, all of which are mounted on a single shaft, in order to maximize the data storage surface in a given volume of space.

All HDD spindle motors are configured for direct driving of the platters. That is, the rotating shaft of the motor and shaft on which the platters are mounted is a single, integral unit. This is in contrast to most electric motors, which use gears or belts to transfer and modify their output.

A critical component for reducing the wobbling of the shaft along with vibration and noise is the bearings. Spindle motors have long used ball bearings, which consist of small metal balls that are housed in a metal ring structure around the spindle motor shaft. However, in the past few years there has been a transition to fluid dynamic bearings, in which the metal balls are replaced by a high viscosity oil, thereby eliminating the metal-to-metal contact. The advantages include a further reduction in noise, longer life expectancy and lower cost.

Other ways in which spindle motor performance has been improved and size and cost have been reduced in recent years include the use of more powerful permanent magnetic materials, higher precision machining techniques and improved electronic control circuits.