Blind hollow shaft incremental encoder with antirotation pin Size: 35 mm. Blind hollow shaft with antirotation pin. Resolution: 500 ppr. Without zero pulse. Power supply: 5 - 28 V DC. Electronic interface: push-pull. Bore diameter: 15 mm. Enclosure rating: IP54. Max rotation speed: 3000rpm. Output type: radial cable output Hollow shaft encoder series for small AC motors.