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Motor Technology - GEL293
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The incremental encoders are used to convert rotary motion into electrical impulses.


The encoders from Lenord + Bauer combine a magnetic sensing system with a robust mechanical design and have proven themselves worldwide in a broad spectrum of applications in which reliability is essential in harsh industrial environments.


Long service life and negligible maintenance costs are synonymous with these encoders.




Typical applications


Heavy industry


Paper and packaging machines


Bottling plants


Transport and storage systems


Machines for the processing of steel, wood, rock, textiles and plastics


Railway industry


Measuring principle

The encoders contain a contact-less magnetic sensor system and a precision toothed wheel. The sensor’s magnetic field is modulated by the passing of the teeth of the measuring wheel.

The resulting sinusoidal and co-sinusoidal voltage is evaluated by the integrated electronic and converted to an incremental output and optionally to an additional analogue current output.


Advantages of the magnetic system



Unaffected by condensation on the measuring wheel and is therefore the preferred choice for applications, where ambient temperatures change or where the relative humidity is high. (e.g. outdoors)


Unaffected by oil or dirt penetration.


The steel measuring wheel is highly resistant to shock and vibration, unlike glass or plastic graduated discs in other systems.


Excellent reliability over a very long life because it does not suffer from the ageing effect common to optical systems.




  GEL 293

Description / technical features

Hollow shaft encoder integrated, highly elastic coupling with torsional rigidity. (Absorbs shaft movement up to +/- 3 mm). 

Incremental and current (analogue) outputs.

Pulse number / revolution

10 ... 10,000

Housing diameter 115 mm
Hollow shaft diameter 16 mm

Axial shaft load

integrated coupling 

Radial shaft load

integrated coupling 

Max. revolutions

8,000 min -1

Temperature range

- 20 ... + 85 °C

Protection class

IP 66

Supply voltage

5 V, 10 ... 30 V DC

Output signals


Square wave 5 V, 10 ...30 V

+/- 20 mA, 4 ...20 mA