Incremental encoders with large hollow shafts

Versatility on a large scale  – hollow shafts up to 85 mm in diameter.

These highly accurate encoders work with up to 80,000 pulses / revolution with optical scanning and are ideally suited for shafts with diameters up to 85 mm. The direct mounting saves time and money in comparison to conventional solutions.

  • Portfolio
    • Hollow shafts from 3/8 to 1 inch

      • Up to 80,000 pulses
      • Isolated blind hollow shaft or through hollow shaft
      • Precise optical scanning

      Hollow shafts from 30 to 65 mm

      • Up to 4,096 pulses
      • Through hollow shaft
      • Precise optical scanning

      Productfinder: 30...50 mm

    • Hollow shafts from 17 to 27 mm

      • Up to 10,000 pulses
      • Blind hollow shaft or through hollow shaft
      • Precise optical scanning


      Hollow shafts from 60 to 85 mm

      • Up to 2,500 pulses
      • Through hollow shaft
      • Precise optical scanning
    Special features
    • Very broad range of hollow shaft diameters from 14 to 85 mm
    • Resolutions up to 80,000 pulses per revolution
    • Flexible mounting options with respect to torque supports, stator coupling or pin connection
    Areas of application

    Direct mounting on large hollow shafts, e.g. on asynchronous motors, in pitch control applications or in elevator construction

    Key features
    • Blind hollow and through hollow shafts
    • Optical scanning for maximum accuracy and high pulse ranges
    • High protection class up to IP67