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Heidenhain: Rotary Encoder (ROC/ROQ/ROD 400 and RIC/RIQ 400 Series) Measuring angles with rotary encoders In rotary encoders with integral bearing and stator coupling, the graduated disk of the encoder is connected directly to the shaft to be measured. The scanning unit is guided on the shaft via ball bearings, supported by the stator coupling. During angular acceleration of the shaft, the stator coupling must absorb only that torque resulting from friction in the bearing, thereby minimizing both static and dynamic measuring error. Moreover, the coupling mounted on the stator compensates axial motion of the measured shaft. Other benefits of the stator coupling are: Rotary encoders with integral bearing that are conceived for separate shaft coupling are designed with a solid shaft. The recommended coupling to the measured shaft compensates radial and axial tolerances. Angle encoders for separate shaft couplings permit higher shaft speeds. Rotary encoders without integral bearing operate without friction. The two components - the scanning head and the scale disk, drum, or tape - are adjusted to each other during assembly. The benefits are:
Rotary encoders with integral bearing
HEIDENHAIN ERN, ECN and EQN rotary encoders with integral bearing and mounted stator coupling are characterized by 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. ROD, ROC and ROQ rotary encoders from HEIDENHAIN have their own bearings and are sealed. 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.
ROC/ROQ/ROD 400 Features:
Industrial standard for dimensions and output signals Mounting by synchro flange or clamping flange Shaft diameter 6 mm with synchro flange , 10 mm with clamping flange
Model No.: RIC 418, RIQ 430, ROC 413, ROC 424 S, ROC 425, ROC 425 F, ROC 425 M, ROD 420, ROD 426, ROD 430, ROD 436, ROD 466, ROD 480, ROD 486, ROQ 425, ROQ 435 M, ROQ 436 S, ROQ 437, ROQ 437 F
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