Double Flank Gear Inspection Machines

The double flank gear test is a quick and simple inspection method for gears.

The basic principle of the double flank gear test is based on a master gear (a near perfect gear) and a workpiece in rolling contact, free from backlash. The inspection machine has one rotational axis which is fixed and one which is movable. The centre distance variations during the rolling process are caused by form errors on the workpiece and are the basis for the quality assessment. Depending on your workpiece geometry, FRENCO provides various types of machines.

All Machines can be equipped with the FRENCO MEG32 measuring electronics. The evaluation is then carried out by the FRENCO Software FGIpro.

Recent Development: Specialist for Large Gears

Type ZWP 30

  • For large external gears, shafts and worms
  • Despite heavy weight loads, a granite machine base and cross roller bearings guarantee precise measurements
  • Stable and optimised design for the shop-floor use
  • Changeover for other specimens is easily and quickly to handle
  • Minimum centre distance 70 mm
  • Max. diameter of specimen 500 mm
  • Max. shaft length 750 mm

Specialist for small yet highly precise gears

Type ZWP 06

  • For internal and external gears, worm gears and worms
  • Suitable for plastic gears
  • Module range 0.15 – 1.00 mm
  • Minimum centre distance 10 mm
  • Max. diameter of specimen 80 mm
  • Repeatability with calibration set from FRENCO < 1.5 µm

Specialist for the shop-floor use

Type ZWP 14/24

  • For internal and external gears, worm gears and worms
  • Low base price of the ZWP 24 due to the modular system
  • Minimum centre distance 20 mm
  • Max. diameter of specimen 400 mm (single end) / 160 mm (between tips)
  • Repeatability with calibration set from FRENCO < 1.5 µm

Specialist for Highest Precision

Type ZWP 18

  • For internal and external gears, worm gears and worms
  • Sophisticated setup allows high precision measurements
  • Universal measuring machine, suitable for laboratories
  • Minimum centre distance 20 mm
  • Max. diameter of specimen 200 mm (single end) / 160 mm (between tips)
  • Repeatability with calibration set from FRENCO < 1.5 µm