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Different varieties of spindle motors and their features

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Different varieties of spindle motors and their features

What is Spindle motor?


The spindle motor is also called a high-speed motor, which refers to an AC motor with a rotational speed of more than 10,000 rpm/min. Mainly used in wood, aluminum, stone, hardware, glass, PVC, and other industries.

CNC Spindle

CNC spindle often refers to the shaft at the center of the rotating axis of the machine tools, sometimes spindle is used to refer to the entire rotary unit, including not only the shaft itself but its bearings and anything attached to it.

Features of Spindle Motors

Motorized spindle

High-speed motorized spindles tend to develop in the direction of high precision, high speed, low energy consumption, high efficiency, and high reliability.

The high-speed precision bearing is one of the core supporting components of a high-speed motorized spindle. Bearings are often in high-speed or ultra-high-speed operation, so the bearings must have a series of characteristics such as good high-speed performance, high dynamic load-carrying capacity, superior lubrication performance, and low heat generation.

ER25 spindle

Following are the features of er25 spindle


  • Spindle motor with superior durability ER25 collet ensures smooth running.
  • Fast response, strong overload capacity, low noise and high mechanical precision.
  • High quality 4 pcs bearings (7007Cx2 + 7005Cx2), runout off less than 0.01mm, tapered bore less than 0.005mm.
  • P4 grade ceramic ball bearings used as spindle bearing, which improves the service life under high speed revolution.
  • Lubricated with grease, which is resistant to 200 degrees high temperature.
  • Tight sealing and two-layer dustproof design.

Hsk spindle

What is HSK spindle?


The HSK (Hohl Shaft Kegel, or hollow-shank taper) tooling provides dual contact between the taper and the spindle face, providing a very rigid connection that offers excellent axial and radial accuracy, especially at high spindle speeds.

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