Roundness measurement

on an electric motor

  • Ø 8 mm
  • Linearity: 0.25 %
  • Zero maintenance LVDT
  • Large number of cycles

TASK

If the shaft of an electric motor is not circular, this will produce vibrations at high speeds and hence increased wear. Irregular bearing surfaces may be one cause of a shaft running out of true. A bent shaft or a shaft without strict dimensional tolerances could also be the cause.

SPECIFIC REQUIREMENT

To guarantee the roundness of a shaft, two displacement sensors are used to measure the true running of the shaft. The displacement readings are checked to assess the roundness.

SOLUTION

As part of the quality assurance process, the shaft is tested for true running, bow and concentricity of the bearing surfaces. The test also includes measuring the diameter of the shaft bearings. In the test, the shaft is clamped in a holder and turned by a motor while being measured by two displacement sensors. The instrument measures the difference between the signals from these two sensors; this difference is only allowed to vary within a specified tolerance band. The 9163 digital indicator performs the difference calculation and assesses the results. As this process takes just a few seconds, both random sampling and 100% testing are possible. If the shaft does not lie within the tolerance band, the 9163 outputs an alarm signal. When used for testing random samples, the 9163 colour display provides additional support by changing from green to red if the shaft lies out of tolerance. The operator thus knows immediately whether the shaft is OK.

Go to product Digital Indicator 9163
Go to product 8739

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Downloads

Applications
burster in USA

burster Inc.
Adam Giorgione, Christina Giorgione: +1-706-331-0537; Darren McCulley: +1-330-842-5088
adam.giorgioneburster.us; christina.giorgioneburster.us; darren.mcculleyburster.us; salesburster.us
www.burster.us

Product category :

  • Torque Sensors
  • Load Cells
  • Displacement Sensors
  • Mechanical and Electrical Calibration Solutions
  • Ohmmeter for Automation

Company-Information Company-Information

USA

burster Inc.

Adam Giorgione; Christina Giorgione
105 Laurel Creek Rd. SE
Suite: 10C Calhoun, GA. 30701

Darren McCulley
2542 E. Aurora Road, Suite 203
Twinsburg, OH 44087

USA

Fon: Adam Giorgione, Christina Giorgione: +1-706-331-0537; Darren McCulley: +1-330-842-5088
adam.giorgioneburster.us; christina.giorgioneburster.us; darren.mcculleyburster.us; salesburster.us
www.burster.us

Product category :

  • Torque Sensors
  • Load Cells
  • Displacement Sensors
  • Mechanical and Electrical Calibration Solutions
  • Ohmmeter for Automation

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The Battery Show NORTH AMERICA
06.10. - 09.10.25 - Michigan, 48226, USA  


Absolute Gauge Technologies Inc.

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Physicom Corp.
P.O. Box 252
Scarborough, ON
M1V 5J2

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Pointe-Claire, QC
H9R 4S2
Kanada

Fon: +1 8887547008
Fax: +1 4167542351
salesabsolutegauge.com
www.absolutegauge.com

Local sales support through different rep networks available, please inquire at Absolute Gauge Technologies Inc.

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  • Local calibration service
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