External rotary encoders - ROC/ROQ 400 series
Absolute rotary encoders with integral bearing
Brand: Heidenhain

  • Solid shaft for separate shaft coupling
  • Very high positioning accuracy of down to ±10"
  • Available with stainless steel housing
  • Max. operating temperature: 100 °C
  • 33 554 432 positions/rev.
  • Multiturn functionality for up to 4096 revolutions
  • Interfaces: EnDat, Fanuc, SSI and DRIVE-CLiQ
  • Housing diameter ≈ 56 mm


Product Description
Compensatory rotor coupling

A separate rotor coupling is used to couple the rotary encoder. This coupling compensates for axial movements, radial misalignment, and angular offset, thereby preventing loads on the rotary encoder's bearing and a reduction in service life.

Wide variety of interfaces

The rotary encoders of this series are available with many different interfaces, allowing them to be connected directly to most subsequent electronics. Neither an adapter nor a signal converter is necessary.

Versatile mounting

The rotary encoders of this series can be mounted in different ways. Based on the given requirements, mounting can be performed with fixing clamps and a synchro flange or via a front-face fastening thread and an adapter flange.

Functional safety

Rotary encoders from this series are available with functional safety and a safe mechanical connection. Once integrated into an application with up to SIL 2 safety, they minimize malfunctions and facilitate the safe operation of machines and systems.

Proven standard

The rotary encoders of this series boast high reliability and perfected technology in a robust design. For decades, they have proven themselves around the world in great numbers and in a wide variety of applications.