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Sealed Angle Encoders

Angle Encoders with Integral Bearing, Hollow Shaft and Integral Stator Coupling: RON and RCN The stator coupling is configured so that during angular acceleration it absorbs only the torque resulting from bearing friction. The HEIDENHAIN angle encoders RON and RCN are therefore characterized by excellent dynamic performance. Since the stator coupling is integrated, the specified system accuracy includes the error of the shaft coupling. Further advantages:  Short overall length and small space requirement  Hollow shafts with diameters up to 60 mm for supply lines, etc.  Simple mounting Angle Encoders with Integral Bearing and Solid Shaft: ROD Angle encoders with stub shafts are particularly well suited for applications with high rotational speeds or where large mounting tolerances are required. Precision couplings permit axial tolerances up to ± 1 mm for shaft coupling.

Selection aid: Sealed Angle Encoders

Output signals	Coupling, shaft	Accuracy	Model
Incremental	With integrated stator coupling and hollow shaft	To ± 2.5"	RON
		To ± 0.2"	RON
	With separate coupling and solid shaft	To ± 2.5"	ROD
		To ± 1"	ROD
Absolute	With integrated stator coupling and hollow shaft	To ± 2"	RCN

	Angle encoder with an integrated stator coupling   System accuracy Mechanically perm. speed Incremental signals RON ± 5 3000 min-1 1 Vss RPN ± 2 1000 min-1 1 Vss RCN ± 1 " 1000 min-1 1 Vss Because of the design and mounting of the stator coupling, it must only absorb that torque caused by friction in the bearing during angular acceleration of the shaft.  Advantages: Compact size for limited installation space Hollow shaft diameters up to 100 mm for leading power cables, etc. C axes on lathes Simple mounting   Angle encoders with integral bearing, for separate shaft coupling   System accuracy Mechanically perm. speed Incremental signals RON 200 ± 2,5 " to ± 5 " 3000 min-1 1 Vss RON 700 ± 2 " 1000 min-1 1 Vss RON 800/ RPN 800 ± 1 " 1000 min-1 1 Vss RON 900 ± 0,4 " 100 min-1 11 µAss     Angle encoders for separate shaft coupling   System accuracy Mechanically perm. speed Incremental signals RON 200 ± 2,5 " to ± 5 " 3000 min-1 1 Vss RON 700 ± 2 " 1000 min-1 1 Vss RON 800/ RPN 800 ± 1 " 1000 min-1 1 Vss RON 900 ± 0,4 " 100 min-1 11 µAss   Angle encoders for separate shaft coupling   System accuracy Mechanically perm. speed Incremental signals ROD 200   ± 5 " 1000 min-1 1 Vss ROD 700   ± 2 " 1000 min-1 1 Vss ROD 800 ± 1 " 1000 min-1 1 Vss ROD angle encoders with solid shaft are particularly suited to applications where higher shaft speeds and larger mounting tolerances are required. The shaft couplings allow axial tolerances of ± 1 mm.     Angle encoders without integral bearing         ERA       ERO               Angle encoders without integral bearing (modular angle encoders) are intended for integration in machine elements or apparatuses. They are suited for the following requirements: Large hollow shaft diameter (up to 10 m with a scale tape) High shaft speeds up to 40000 rpm No additional starting torque from shaft seals Segment solutions   Search result (8) Name Line count System accuracy Mech. permissible speed n   ERA 780C ERA 781C   50°: 5000 72°: 5000 100°:10000 144°:10000 160°: 20000 200°:20000 36000 45000 90000   ± 3,2'' ± 3,4'' ± 3,5''   500 min-1 ERA 780C 36000 ± 3,5'' 500 min-1 ERA 780C 45000 ± 3,4'' 500 min-1 ERA 780C 90000 ± 3,2'' 500 min-1 ERA 780C     500 min-1 ERA 781C 50°: 5000 100°:10000 200°:20000   500 min-1 ERA 781C 72°: 5000 144°:10000   500 min-1 ERA 781C 160°: 20000   500 min-1 ERA 781C     500 min-1