Backlash measurement


Transmission assembly and measurement

Fully-automatic system for assembly and measurement of front and rear axle transmissions. The transmission is indexed with a workpiece carrier and is fed via a belt system.

Drive bevel gear and drive flange assembly system

Gear box housing, drive bevel gear and inner bearing rings for the drive bevel gear are taken from the workpiece carrier by a robot grabber and placed in the system.

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Measurement of driving pinion and transmission housing

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Measuring station driving pinion

After the manual insertion of the bevel gear, the diameter of the head bearing outer ring, the pinion height and the runout are measured under the load of the drive bevel gear in order to determine the thickness of the shim (S1) for the given block dimension (distance between pinion head and pinion shaft axle) - for the further assembly process.

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Measuring station transmission housing

Measurement and control of the identification and quality values such as bore diameter, depth and angularity of the bore axes. The machine has two automatically exchangeable measuring heads for different housings. Independent calibration takes place using a gauger.


Lanchester transmission

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The base plate with floating suspension of the Lanchester grabber enables precise joining of the Lanchester in the index bores of the crankshaft housing. After the joining, the Lanchester is fastened on the crankcase housing automatically (torque and angle of rotation are monitored). The measuring and drive unit are combined as a single unit on the crankshaft.


Backlash adjustment oil pump

Adjust and screw backlash between balance shaftmodule and oil pump:

  • Fully automated systemin the engine assembly
  • The balance shaftmodule is used to reduce vibrations in car engines
  • The balance shaftmodule drives the oil pump with a spur gear teeth
  • The NMH system positions the backlash (circumferential backlash) between the balance shaftmodule and oil pump and screws them together
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NMH GmbH l Am Flugplatz 2 l D-88367 Hohentengen | Phone +49 (0)7572 7619-0 l Telefax 7619-29 l nfnmhd