This is double output shaft for NMRV30 Worm Gear Speed Reducer, the output shaft diameter is 14mm with 5mm keyway and M6 screw holes on both ends.

Specifications

Manufacturer Part Number: RV30-AB
Single/Double Shaft: Double Shaft
Output Shaft Type: Key Way
Output Shaft Diameter: Φ14mm
Ooutput Shaft Length: 128mm
Screw Holes on Shaft End: M6 x 16