Advantages of Linear Servomotors
The Linear Shaft Motor is a simple, high efficiency, high precision motor that requires no maintenance over it’s lifetime. The motor consist of only two parts, a magnetic shaft, and a “forcer” of wound coils. Because it has no iron in the forcer or shaft, giving you the precision and zero cogging expected in a coreless design, the Linear Shaft Motors provide ultra high precision.
The coils of the Linear Shaft Motor form the core, giving you the stiffness expected in an iron cored motor. Because the coil completely wraps around the magnets, all the magnetic flux is efficiently used. This allows for a large (0.5 to 2.5mm) nominal annular air gap. This air gap is non-critical, meaning there is no variation in force as the gap varies over the stroke of the device.
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