Heidenhain Angle Encoders

Angle encoders without integral bearing. The angle encoders without integral bearing (modular angle encoders) ERP, ERO and ERA consist of two components—a scanning head and a graduation carrier, which must be aligned with each other during mounting. The eccentricity of the shaft as well as installation and adjustment therefore have a decisive effect on the achievable accuracy.

Modular angle encoders are available with various graduation carriers:
• ERP/ERO: Glass circular scale with hub
• ERA 4000: Steel drum
• ERA 6000/7000/8000: Steel tape