SK-Spindles pneumatic taper changes are high-frequency machine spindles for high-speed milling, grinding, drilling and engraving. The insertion of the SK-Spindle into a machine tool is made by a taper adapter. The tool used in each case is changed automatically by a built-in pneumatic cylinder into the SK-Spindle. Tools are clamped through the use of WK-tapers, WK-shrinking tapers or HSK-tapers.

Jäger High Performance Spindles utilize hybrid ceramic ball bearings. These bearings have standard steel bearing races and are matched with silicon nitride balls. Advantages of hybrid bearings compared with normal spindle bearings are improvement of:

• Longer service life
• Reduced wear
• Low abrasive wear out
• Low friction coefficient
• Higher speeds
• Low heat conductivity
• Corrosion resistant
• Non-magnetic
• Electrically isolating
• Improved machining accuracy
• Higher rigidity of bearing arrangement
• Small thermal expansion
• Low vibration impulse by ceramic balls

The specifications, dimensions and materials of the products included in the catalogue represent the state of engineering. We reserve the right to perform modification and/or to replace materials.
The performance values of our high-frequency spindles are dependent on the applied type of frequency converter and may therefore vary from the indicated values.
All catalogue information and data was developed and compiled with highest accuracy.
However, the Alfred Jaeger GmbH will not take legal responsibility and/or liability for any claim, resulting from possible misrepresentation of data and its consequences.