Benefits of a spindle chiller
Maintaining accuracy and spindle longevity are the primary reasons to consider adding a spindle chiller to your machining center.
Why high temperatures compromise the spindle and affect accuracy
Because conventional spindles 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.
