When To Use A Spindle Chiller
Because conventional spindles on machining centers are typically designed with a fixed bearing preload (no springs), there isn’t any compensation for the thermal expansion that occurs from heat generation. Higher temperatures cause the bearing raceways to expand and tighten. This causes the bearing system to increase its preload beyond the original setting, which leads to increased axial and radial loading on the bearing system.
Because conventional spindles on machining centers are typically
designed with a fixed bearing preload (no springs), there isn’t any
compensation for the thermal expansion that occurs from heat
generation. Higher temperatures cause the bearing raceways to expand
and tighten. This causes the bearing system to increase its preload
beyond the original setting, which leads to increased axial and radial
loading on the bearing system. In addition to compromising the lifespan
of the spindle bearing system, this thermal expansion affects accuracy.
A spindle chiller is a worthwhile investment that extends spindle life,
protects accuracy, increases the machine’s capacity, and reduces
maintenance costs. Refer to the chart below for basic guidelines.
Related Content
-
7 CNC Parameters You Should Know
Parameters tell the CNC every little detail about the specific machine tool being used, and how all CNC features and functions are to be utilized.
-
6 Variations That Kill Productivity
The act of qualifying CNC programs is largely related to eliminating variations, which can be a daunting task when you consider how many things can change from one time a job is run to the next.
-
What are Harmonics in Milling?
Milling-force harmonics always exist. Understanding the source of milling harmonics and their relationship to vibration can help improve parameter selection.