... polyurethane 4 pieces. * M: The hole dia. Of the encoder end. N: The hole dia. Of the user end. * ... indicate)M: The hole dia. of the encoder end.Φ4,Φ5,Φ6,Φ8,Φ10,Φ12,Φ15mmN: the hole dia.of ... the user end.Φ4,Φ5,Φ6,Φ6.35,Φ7,Φ8,Φ10,Φ12,Φ15mmTorque≤5.0NmThe axial degree≤0.2mmThe ... .5M3BF6625345.5M3BF8825345.5M3BF101030426.5M3BF121230426.5M3BF151530426.5M3 Aluminum Encoder coupling 2830-5mm