Spindle Error Analyzer
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Spindle Error Analyzer: Tests Performed-
Fixed Sensitive Radial

Fixed Sensitive Radial acquires displacement in the X direction relative to angular position and displays the data in a polar plot.
This test is valid for processes such as turning and some grinding processes where the part is rotating in the spindle, or where the point of contact between the grinding wheel and part are at a fixed position such as surface grinding.

It measures changes in the axis of rotation in one direction and evaluates the following aspects of machine tool performance:

 

Performance Parameter	Related Source Problems
Roundness capability due to synchronous spindle error motion	Out of round bearing races Out of round bearing seats Misaligned bearing seats
Surface finish capability due to asynchronous spindle error motion	Bearing wear Improper preload Structural vibration
Performance degradation at specific speeds	Inadequate stiffness Imbalance Resonant frequencies of machine

 

Data Collected	Calculated Values
X (One Probes)	TIR X, TIR Y Total Error Asynchronous Error Synchronous Error RPM

 

 

 

SEA 8 Manual
pdf (500K)

SEA Literature
pdf (95K)

Master Ball Targets Dimensions and Care
web page pdf (62k)

Using Capacitance Probes to Measure the Limit of Machine Contouring Performance
pdf (650k)

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