SM Coupling

SMF Series

Features

  • Rubber : anti-vibration
  • Improves servo motor gain values
  • Low reaction force, excellent vibration damping
  • Zero backlash
  • Electrical insulation
  • Diameter: ø26 ~ 56
  • Torque: 2 N·m ~ 25 N·m
Dimensions
Model d1 d2 D L L1 E S A C d3 M Tightening Torque
Min. Max. Min. Max. [N·m]
SMF-020 4 10 4 11 26 31.9 10.8 8.9 0.7 9.5 3.3 10.5 M2.5 1.2
SMF-025 5 13 5 14 29 32.4 10.8 9.4 0.7 11 3.3 13.5 M2.5 1.2
SMF-030 10 15 10 16 34 38 12.5 11 1 12.5 3.75 15.5 M3 1.7
SMF-035 6 18 6 19 39 48 15.5 15 1 14 4.5 18.5 M4 3.5
SMF-040 15 22 15 24 44 48 15.5 15 1 17 4.5 23.5 M4 3.5
SMF-050 19 28 19 30 56 59.8 20.5 17.4 0.7 22 6 29.5 M5 7.5

Model Rated Torque Allowable Misalignment Maximum Speed Axial Spring Constant Moment of Inertia Mass Torsional Stiffness
Parallel Angular Axial RPM [N/mm] [kg·m²] [kg] [N·m/rad]
[N·m] [mm] [°] [mm]
SMF-020 2 0.15 1.5 ±0.2 19,000 637 3.01×10-6 0.031 177
SMF-025 4 0.2 1.5 ±0.3 17,000 432 4.85×10-6 0.036 252
SMF-030 5 0.2 1.5 ±0.3 14,000 411 10.70×10-6 0.065 393
SMF-035 10 0.2 1.5 ±0.3 12,000 418 26.82×10-6 0.101 602
SMF-040 12 0.2 1.5 ±0.3 11,000 610 38.32×10-6 0.125 1,135
SMF-050 25 0.2 1.5 ±0.3 10,000 662 128.12×10-6 0.270 2,789