Nichiyu 31220-12300 Ball Sensor Encoder Bearing

The 31220-12300 ball sensor encoder bearing is designed for Nichiyu electric forklift drive motor feedback systems. It integrates a deep groove ball bearing with an internal encoder ring to provide real-time rotational speed and position data to the vehicle controller. The unit features a 30 mm inner diameter bore, standard deep groove geometry, and sealed construction for contamination resistance in material handling environments. It serves as a direct replacement for Nichiyu OEM part numbers 31220-12300, 31220-51255, 70001-07601, and 80005-25850. The sensor bearing is compatible with Nichiyu FB15-72, 7FBE10-20, 7FBEU15-20 series and corresponding Toyota rebadged models FBR15-75S, FBR18-75S, 7FBE10, 7FBE20. Installation requires standard bearing press tools and proper alignment to ensure encoder signal integrity. The component operates on 5-24 VDC supply typical of forklift controller interfaces.