Predictive maintenance is done at customer end to predict the failure before it actually happens. This is done by directly monitoring the below said parameters on the spindles during normal operating condition
Tool pull force check / Chuck part clamp force check
Vibration analysis and balancing
Spindle rigidity check
Spindle noise and temperature monitor
Spindle shaft runout/ Taper runout and test bar runout check
Coolant seepage and stator electrical integrity check