WK24by Wachendorff AutomationHelical coupling for encoders with shaft sizes ø 6mm, 8mm, 10mm or 12mm Specifications Max. operating speed 8,000 rpm Max. torque 100 Ncm Max. offset of shafts radial ± 0.3 mm Max. offset of shafts axial ± 0.5 mm Max. offset of shafts angular ± 4° Torsion spring stiffness 20 Nm/rad Radial spring stiffness 60 N/mm Moment of inertia 22.2 gcm² Max. clamping torque 120 Ncm Weight 26g Material Aluminum chrome Configurations WK240606 Helical coupling: ø d1 = 6mm, ø d2 = 6mm WK240608 Helical coupling: ø d1 = 6mm, ø d2 = 8mm WK240610 Helical coupling: ø d1 = 6mm, ø d2 = 10mm WK240808 Helical coupling: ø d1 = 8mm, ø d2 = 8mm WK241010 Helical coupling: ø d1 = 10mm, ø d2 = 10mm WK241212 Helical coupling: ø d1 = 12mm, ø d2 = 12mm