Heidenhain Rotary Encoders

Heidenhain Rotary Encoders

If you need to repair, replace, or consider switching manufacturers to Heidenhain rotary encoders then you are welcome to contact us with your specific needs.  We can help you choose the correct Heidenhain rotary encoder to help you save time, money and risk of downtime.

ECN, EQN, ERN Rotary Encoders – With Integral Bearing and Mounted Stator Coupling Protection IP 64

From Heidenhain:

HEIDENHAIN ECN, EQN and ERN rotary encoders with integral bearings and statormounted couplings operate by photoelectric scanning. They are characterized by their simple mounting and short overall length. Possible applications range from simple measuring tasks to position and speed control on servo drives. The hollow shaft of these encoders is slid directly onto and fastened to the shaft to be measured.

During angular acceleration of the shaft, the stator coupling must absorb only that torque caused by friction in the bearing. Rotary encoders with stator coupling  therefore provide excellent dynamic performance and a high natural frequency.

ECN, EQN, ERN 1000 series

Miniaturized version

  • Absolute
    • ECN 1013
    • EQN 1025
    • ECN 1023
    • EQN 1035
  • Incremental
    • ERN 1020
    • ERN 1030
    • ERN 1070
    • ERN 1080

ECN, EQN, ERN 400 series

Compact size

  • Absolute
    • ECN 413
    • EQN 425
    • ECN 425
    • EQN 437
  • Incremental
    • ERN 420
    • ERN 430
    • ERN 460
    • ERN 480

ECN, ERN 100 series

Large size

  • Absolute
    • ECN 113
    • ECN 125
  • Incremental
    • ERN 120
    • ERN 130
    • ERN 180

ECN, EQN, ERN Rotary Encoders – With Integral Bearing and Mounted Stator Coupling Protection to IP 40

From Heidenhain:

The ECN, EQN and ERN rotary encoders  from HEIDENHAIN with IP 40 degree of protection are specially designed for integration in motors. Bearings and mounted stator coupling are integrated.  Absolute rotary encoders and versions with commutation tracks are available for synchronous motors. The taper shaft or the blind hollow shaft is fastened directly to the shaft to be measured. This ensures an extremely stiff coupling that permits
exceptionally high dynamic performance of the drive. The stator coupling is designed to be fastened in a location bore and permits fast, simple mounting while enabling a mechanical fine adjustment of the commutation.

ECN EQN 1100 Series

  • Absolute
    • ECN 1113
    • EQN 1125
    • ECN 1123
    • EQN 1135
  • Incremental
    • ERN 1123

ECN, EQN, ERN 1300 Series

  • Absolute
    • ECN 1313
    • EQN 1325
    • ECN 1325
    • EQN 1337
  • Incremental
    • ERN 1321
    • ERN 1326
    • ERN 1381
    • ERN 1387

ROC, ROQ, ROD and RIC, RIQ Rotary Encoders – With Integral Bearing, For Separate Shaft Coupling

From Heidenhain:

The optical encoders ROC, ROQ and ROD, as well as the inductive RIC and RIQ from HEIDENHAIN have integrated bearings and are sealed. They provide IP 64 to IP 67 protection, depending on the version. They are robust and compact. These encoders are coupled by the rotor to the measured shaft through a separate coupling that compensates axial motion and misalignment between the encoder shaft and measured shaft. 

Some rotary encoders are suitable in a special version for potentially explosive atmospheres in accordance with
Directive 94/9/EG, (ATEX). They comply with Equipment Group II, meet the requirements of Category 2 and can be used for Zones 1 and 21 as well as 2 and 22.

ROC, ROQ, ROD 1000 Series

  • Absolute Single Turn
    • ROC 1013
    • ROC 1023
  • Absolute Multi Turn
    • ROQ 1025
    • ROQ 1035
  • Incremental
    • ROD 1020
    • ROD 1030
    • ROD 1070
    • ROD 1080

ROC, ROQ, ROD 400 series

  • Absolute Single Turn
    • ROC 413
    • ROC 425
  • Multi Turn
    • ROQ 425
    • ROQ 437
  • Incremental
    • ROD 426
    • ROD 466
    • ROD 436
    • ROD 486

RIC/RIQ 400 series

  • Absolute Single Turn
    • RIC 418
  • Multi Turn
    • RIQ 430

 ECI, EQI, ERO Rotary Encoders Without Integral Bearing

From Heidenhain:

The inductive rotary encoders ECI/EQI 1100 and ECI/EQI 1300 are mechanically compatible with the corresponding ExN photoelectric encoders: the shaft is fastened with a central screw. The stator of the encoder is screw fastened in a location hole.

The ECI 119 inductive rotary encoder has a particularly small outside diameter with a large shaft opening. It is slid onto the shaft and fastened from behind with axial screws. The photoelectric ERO modular rotary encoders from HEIDENHAIN consist of a graduated disk with hub and a scanning unit. They are particularly well suited for limited installation space or for applications for which there must be no friction.

The correct installation of the rotary encoders without integral bearing can be inspected with the HEIDENHAIN
measuring and testing devices IK 215 or PWM 9.

ECI/EQI 1100 series

  • Absolute
    • ECI 1118
    • EQI 1130

ECI/EQI 1300 series

  • Absolute
    • ECI 1319
    • EQI 1331

ECI 119 (Absolute)

ERO 1200 series

  • Incremental
    • ERO 1225
    • ERO 1285

ERO 1400 series

  • Incremental
    • ERO 1420
    • ERO 1470
    • ERO 1480