ServoClass Single Flex Couplings

Part Number: SD020R

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Specifications
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  • Operating Torque: 18 in-lbs
  • Operating Torque : 2 Nm
  • Minimum Bore: 0.1875 inches
  • Minimum Bore : 4 mm
  • Maximum Bore: 0.4375 inches
  • Maximum Bore : 11 mm
  • Maximum Speed: 10,000 RPM
  • Torsional Stiffness: 572 in-lbs/degree
  • Torsional Stiffness : 3,700 Nm/rad
  • Axial Stiffness: 366 lbs/inch
  • Axial Stiffness : 64 N/mm
  • Parallel Misalignment: 0.001 inches
  • Parallel Misalignment : 0.02 mm
  • Angular Misalignment: 1 °
  • Axial Misalignment: 0.006 inches
  • Axial Misalignment : 0.15 mm
  • Inertia: 0.008 lb-in²
  • Inertia : 2.36 x 10-⁶ kg-m²
  • Weight: 0.9 ounces
  • Weight : 25 grams
  • Outside Diameter (D): 1.024 Inches
  • Outside Diameter (D) : 26 mm
  • Overall Length (L): 0.911 Inches
  • Overall Length (L) : 23.15 mm
  • Hub Length (LB): 0.423 Inches
  • Hub Length (LB) : 10.75 mm
  • Distance Between Shaft Ends (DBSE): 0.065"
  • Distance Between Shaft Ends (DBSE) : 1.65 mm
  • Inside Diameter of Flex Disc (K): 0.417 Inches
  • Inside Diameter of Flex Disc (K) : 10.6 mm
  • Clamp Screw to Bore (A2): 0.374 inches
  • Clamp Screw to Bore (A2) : 9.5 mm
  • Clamp Screw to End of Hub (C): 0.130 inches
  • Clamp Screw to End of Hub (C) : 3.3 mm
  • Clamp Screw Size (M): M2.5
  • Clamp Screw Size (M) : M2.5
  • Tightening Torque: 9 in-lbs
  • Tightening Torque : 1 Nm

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Configuration
Bore Size D1
Bore Size D2