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Double Flank Testing

Double Flank gear testing is considered a composite testing approach to gear measurement. It measures the “composite” of Index, Helix (lead), Profile and Runout errors in a gear.

Double flank testing consists of rolling two gears together in tight mesh (preloaded one against another without backlash) and measuring the center distance deviation as the parts rotate 360°. One of the gears in mesh is a master gear with very small elementals errors and the other is the component to be tested. After rotating for 360°, a chart is created showing the center distance variation between the two gears.

Characteristics to Test

  • Total Composite Error Fi”
  • Tooth-to-Tooth Error fi ”
  • Composite Runout Error Fr”
  • Mean Center Deviation da”
  • Nicks and Burrs
DFT250-2
ManualDFT

Double Flank Inspection (Manual Hand Roller)

  • 50-200 mm center distance
  • Linear scale 5 micron resolution
  • Patented hand crank
Double Flank Inspection Manual Hand Roller

Double Flank Inspection (DFT 100)

  • 0-100 mm center distance
  • Linear scale 001 micron resolution
  • Direct drive rotary motor with encoder
  • Windows XP Pro computer system with:
    • Double flank analysis for AGMA, DIN
    • Custom Analysis
    • Optional load cell for measuring force
Double Flank Inspection DFT100

Double Flank Inspection (DFT 250)

  • 50-250 mm center distance
  • Linear scale 001 micron resolution
  • Direct drive rotary motor with encoder
  • Windows XP Pro computer system with:
    • Double flank analysis for AGMA, DIN
    • Custom Analysis
    • Total weight 450kg
    • Custom base cart included
Double Flank Inspection DFT250

Double Flank Inspection (DFT 500)

  • 50-200 mm center distance
  • Linear scale 1 micron resolution
  • Windows 7
  • Minimal operator training required
  • Direct drive rotary motor with encoder
  • Computer system with:
    • Double flank analysis for AGMA, DIN, ISO and custom
    • Optional force gage integrated
    • Max part weight 450 lbs.
    • Max gear 50″
    • Max length between centers 20″
Double Flank Inspection DFT500