... cover shaft couplingGB4323-84E.g.1TL3 flexible cover shaft coupling Main shaftZ aperture of shaft,C key groove, ... ,L1=30mmMinor shaftJ aperture of shaft,B key groove,d3=18mm,L1=130mmE.g.2HL6 flexible cover shaft ... couplingMain shaftYaperture of shaft,A key groove, d1 ... =40mm,L1=112mmMinor shaftYaperture of shaft,A key groove, d1=40mm,L1= ...