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Incremental hollow shaft encoder with ceramic hybrid roller bearings

The FGHJ 2 is an incremental hollow shaft encoder. The bearings of the FGHJ 2 are designed to provide higher load ratings to ensure it offers greater reliability and a long service life. In addition, the shaft with insulated hybrid bearings made of technical ceramics is also designed to ensure long-term durability. Thanks to the generously dimensioned axial terminal box the device is easy to configure with vibration-proof plug-in connectors utilizing spring cage technology. LEDs warn the user if faults occur in the supply voltage as well as when the output stage is overloaded. The FGHJ 2 is rated to protection class IP66, which means it is ideally suited for applications in salt-laden environments. It is possible to add an overspeed protection switch on request. The FGHJ 2 is designed for a maximum speed of 6000 rpm.


Diameter hollow shaft

16 mm or 17 mm; with cone 1:10

Supply voltage

12 - 30 VDC

Signal amplitude


Pulse rates

1024; alternatively, 2048 symmetric square pulses

Output signals

0° and 90° channels as well as inverted signals

Maximum frequency

200 kHz

Device temperature range

-25 °C to +85 °C

Electrical connection

  • Terminal box (Copper cable / FOC connecton)
  • Copper cable (0.6-3 m) pre-assembled
  • ITT Cannon plug-in connection (pin configuration compatible with comparable devices from third-party manufacturers following consultation). Options: Mating connector set comprising a 90° circular connector and EMC cable gland

Degree of protection



approx. 2 kg

Option S

Electronic overspeed switch; switching speed preset ex works

Option FOC

As an alternative to conventional signal transmissions via copper cables it is also possible to transmit encoder signals via fiber optic cables

Option AKK

Second incremental output via redundant/additional electronics (second optical scanning)

Operating and Assembly Instructions (PDF, 3.4 MB) Download
Catalog - FG 2 / FGHJ 2 (PDF, 1.65 MB) Download
Inquiry form - Incremental encoders (PDF, 165 KB) Download
Product Article FG(HJ) 2 (PDF, 374 KB) Download
UL/CSA Certificate of Compliance (PDF, 262 KB) Download


Standard dimension drawings and connection diagrams are provided in the Operating and Installation Instructions. We would be pleased to send you individual variations as well as DXF/STEP files on request.