EXN ROtary Encoder Home Page

Absolute Rotary Encoders with Integral Bearing and Mounted
Stator Coupling

From left to right: ECN 413, EQN 425, ECN 1313, EQN 1325

HEIDENHAIN's ECN/EQN rotary encoders have an integral bearing and a mounted stator coupling. The encoder shaft is connected directly to the measured shaft. During angular acceleration of the shaft the stator coupling must absorb only that torque resulting from friction in the bearing. ECN/EQN rotary encoders therefore display high dynamic performance and high natural frequencies.

Selection aid: ECN and EQN product families

Shaft Model Protection

Hollow shaft

ECN 413
EQN 425 Singleturn
Multiturn

IP 64
IP 64

Taper shaft

ECN 1313
EQN 1325 Singleturn
Multiturn

IP 40
IP 40

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From left to right: ECN 413, EQN 425, ECN 1313, EQN 1325

HEIDENHAIN's ECN/EQN rotary encoders have an integral bearing and a mounted stator coupling. The encoder shaft is connected directly to the measured shaft. During angular acceleration of the shaft the stator coupling must absorb only that torque resulting from friction in the bearing. ECN/EQN rotary encoders therefore display high dynamic performance and high natural frequencies.