... both sides. * Absorption of parallel, angular misalignments and shaft end-play by spring action. * Resistance to oil ... polyurethane 4 pieces. * M: The hole dia. Of the encoder end. N: The hole dia. Of the user end. ... Outside D=25mm, length=30mm. * Diameter of hollow shaft can be defined by user; Standard hole 4mm, 5mm. ... please indicate)M: The hole dia. of the encoder end.Φ4,Φ5,Φ6,Φ8,Φ10,Φ12,Φ15mmN: the ...