Circumferential Backlash Instrument

These instruments measure the effective size of splines, while taking all form errors (effective spline) into account.

  • Available for internal and external splines
  • Composite spline, mutually rotatable discs
  • Special measuring method that can be used instead of composite no go gauges according to ISO 4156 and ANSI B92.1
  • Setting master required

Combination with Size Inspection Instrument

Combining the effective spline, as measured with this instrument, with the actual dimensions, that come from size inspection instruments, enables a more precise process monitoring. The FRENCO Software LdynPro determines the difference between actual and effective and offers important information with regard to the quality of the gearing.