• KOREAN
  • ENGLISH
  • CHINESE
  • JAPANESE

  • Search

    Search all within the site

Disk Type
SD Series

shaft coupling, Korean coupling, coupler, shaft coupler, precision coupling, precision coupler, Asian coupling, coupling made in Korea, Korean made coupling, ,shaft bore, coupling equivalents, High torque disk coupling, high torque coupling, flexible coupling, miniature coupling, machine tool coupling, coupling varieties, compact coupling, compact sized coupling, small sized coupling, automation coupling, motor coupling, step motor coupling, servo motor coupling, cupling, copling, coupling part, coupling parts, coupling selection guide, coupling selection, coupling installation , rigid coupling, high precision coupling, aluminum coupling, alumimum FA part, IT coupling, ISO 9001, ISO 14001, Korean made components, IT components, mechanical components, motion components,, motion accessories, motion control , motion control components, semi conductor components, display machine components, small sized machine components, small mechanical components, machine components, factory automation part,

  • Why Couplings?
  • Installation Guide
  • Selection Guide
  • Customer-friendly Services
  • Made-To-Order Process
  • Varieties for Special Environments
  • Balancing Correction
  • Engineering Change Notice

SD Series

Go to SD Series(Index)

Single Disk Type Coupling_High Strength Aluminum Alloy Body

  • SD – 2D (.dwg)
  • SD – 3D (.step)

Set-Screw

Dimensions / Performance
Model CAD Shape Size (±0.3mm) Screw Rated
Torque
(N·m) 		Max.
Torque
(N·m)		 Max.
rpm
(min-1)		 Moment
of
Inertia
(kg·m2) 		Static
Torsional
Stiffness
(N·m/rad) 		Mass
(g)		 Permissible Misalignment
D D1 D2 L L1 F Size Fastening
Torque
(N·m)		 Angular
(˚)		 Parallel
(mm)		 End-
play
(mm)
SDS-16 Cylinder 16 6.7 - 12 5.1 2.5 M2.5 0.5 0.5 1 16,000 1.8×10-7 270 5 0.5 0.02 ±0.1
SDS-19 Cylinder 19 8.5 - 14.1 6.1 3 M3 0.7 0.9 1.8 16,000 3.0×10-7 600 6 1 0.02 ±0.1
SDS-22 Cylinder 22.2 10 - 14.8 6.2 3 M3 0.7 1.1 2.2 12,000 6.9×10-7 600 10 1 0.02 ±0.1
SDS-26 Cylinder 26.6 12.2 - 17.6 7.4 3.6 M4 1.7 1.5 3 12,000 2.0×10-6 900 20 1 0.02 ±0.15
SDS-31 Cylinder 31.8 14.4 - 17.6 7.2 3.6 M4 1.7 3 6 10,000 4.4×10-6 1,700 30 1 0.02 ±0.2
SDS-42 Flange 42.5 18 29.3 30.8 13.4 4.6 M4 1.7 7 14 8,000 1.7×10-5 2,800 65 1 0.02 ±0.25
SDS-47 Flange 47 20.4 33 31.4 13.9 4.5 M5 4 12 24 8,000 2.7×10-5 6,000 91 1 0.02 ±0.25
SDS-54 Flange 54 25 38.5 42.3 19 5.8 M5 4 22 44 7,500 4.9×10-5 11,000 130 1 0.02 ±0.25
SDS-64 Flange 64 25.8 48 58.2 26 8 M8 15 31 62 7,000 1.8×10-4 20,000 292 1 0.02 ±0.25
  • The Moment of Inertia and Mass values are based on products with max. Inner diameter.
  • Max. torque/rated torque is the value regarding to a coupling’s self-durability and is not related to slip-torque between the coupling bore and the shaft. (In general, the clamping force on set-screw type is weaker, therefore it is recommended that an additional keyway is processed for the enhanced clamping force.)
Standard Inner Diameter (ID)
Model Standard Inner Diameter (d1, d2) (mm)
3 4 4.5 5 6 6.35 7 8 9 9.525 10 11 12 12.7 14 15 15.875 16 17 18 19 20 21 22 24 25 26 28 30
SDS-16 ● ● ● ●
SDS-19 ● ● ● ● ●
SDS-22 ● ● ● ● ● ● ● ● ● ●★
SDS-26 ● ● ● ● ● ● ● ● ● ●
SDS-31 ● ● ● ● ● ● ● ● ● ● ● ●★ ●★
SDS-42 ● ● ● ● ● ● ● ● ● ● ● ●
SDS-47 ● ● ● ● ● ● ● ● ● ● ● ● ● ●
SDS-54 ● ● ● ● ● ● ● ● ● ● ● ●
SDS-64 ● ● ● ● ● ● ● ● ● ● ● ● ● ●★ ●★ ●★ ●★
  • The recommended shaft tolerance is h7.
  • Custom process (e.g. non-standard Inner diameter, special tolerance etc.) is also available upon a special request in prior to order placement.
  • Keyway is available. (Optional)
  • Due to interference of the middle parts, make sure the shaft is only inserted into L1 depth for IDs with ★ mark. Consult us first if you're concerned about misalignment.