How Can I Maintain My Machinery’s Spindles?

Maintain Spindles


What are Machine Tool Spindles?

Machine tool spindles are a key component of machinery. They are used to hold the rotating shafts and transfer power from the motor to the rest of the machine. Without them, most machine tools would not be able to function. As such, it is essential to keep machine tool spindles in good condition to continue operating at peak performance.

How Does a Machine Tool’s Spindle Work?

A machine tool’s spindle works by rotating a tool or workpiece at high speed. This high-speed rotation is often used to remove material from the workpiece, polish it, or create a smooth surface finish. The spindle is driven by an electric motor powered by either AC or DC.
The machine tool spindle is a critical component in many machining operations. It is responsible for creating the high-speed rotation needed to perform many tasks. Without it, machining would be a much slower and less precise process.

What is a Spindle in a CNC Machine?

A woodworking or metalworking spindle in a CNC machine is a specialized router controlled by a computer numeric control (CNC) system. This system allows for precise cutting and shaping of the material and can be programmed to create complex designs. It is usually powered by an electric motor and is held in place by a chuck or collet. You can vary the speed of the spindle depending on the material and the desired finish.


Used to create precision parts and products. Types of milling include:

  • Face milling: for removing material to create flat, contoured, or stepped surfaces
  • Slot milling: for creating grooves and slots
  • End milling: for creating rounded edges


The spindle has a drill bit mounted on the end of the spindle. The drill bit is rotated at high speeds and is fed into the workpiece, where the material is removed by the action of the cutting edges on the drill bit. Drilling is a typical operation performed in many manufacturing industries, such as:

  • Automotive
  • Aerospace
  • Medical


This method of making curved or irregularly shaped cuts in a material is commonly used to produce furniture and cabinetry. The router is mounted on a table or stand. The material is fed into the router bit by hand or with an automated feed system. The computer controls the movement of the router bit, and the operator can adjust the speed and depth of the cut.
CNC spindles are available in various sizes and power levels. You can fit them with a wide range of router bits to create different shapes and sizes of cuts. When choosing a CNC spindle for a project, it is essential to consider the type of material you will cut, the complexity of the design, and the production volume.

How Can I Maintain My Machine Tools’ Spindle Health?

Machine tool spindles are the heart of your machinery and keeping them in good condition is essential to maintaining optimal productivity. Here are a few tips on how you can keep your spindles healthy:

  • 1. Keep them clean
    Dust and debris can build up on spindles, causing them to work less efficiently. Make sure to clean your spindles regularly with a soft cloth or brush.
  • 2. Lubricate them properly
    Lubricating your spindles will help reduce friction and wear and keep them running smoothly. Be sure to use the proper type of lubricant for your specific machinery.
  • 3. Inspect them regularly
    Inspecting your spindles regularly for signs of wear or damage is essential. If you notice any problems, be sure to have them repaired or replaced as soon as possible.

Following these simple tips can help keep your machine tools’ spindles healthy and running smoothly. However, if you have any questions or doubts, contact a reputable, knowledgeable, and specialist service for advice, such as the experts at Fischer Precision Spindles, Inc.