• Couplings
  • Disk Type

MDS

Flexible Couplings - Single-Disk Type

  • Zero Backlash
  • High torsional rigidity

Dimension Drawing

MDSFlexible Couplings - Single-Disk Type寸法図

Specs/CAD

Unit : mm

Part Number A L W F G M Screw Tightening
Torque (N・m)
Standard Bore Diameter
D1-D2
CAD RFQ
MDS-19C 19 8 20 2.5 6.5 M2 0.5 - CAD RFQ
MDS-25C 25 10 24 3.5 9 M2.5 1 - CAD RFQ
MDS-32C 32 12 29 4 11 M3 1.5 - CAD RFQ
MDS-40C 40 14 33 5 15 M4 2.5 - CAD RFQ
MDS-50C 50 18 42 6 18 M5 7 - CAD RFQ
MDS-63C 63 20 46 7 24 M6 12 - CAD RFQ

Part Number Max. Bore Diameter
(mm)
Rated
Torque*1
(N・m)
Max. Rotational Frequency
(min-1)
Moment of
Inertia
(kg・m2)*2
Static
Torsional
Stiffness
(N・m/rad)
Max. Lateral Misalignment
(mm)
Max. Angular
Misalignment
(°)
Max. Axial
Misalignment
(mm)
Mass
(g) *2
MDS-19C 8 0.7 33000 6.3×10-7 280 0.02 0.7 ±0.2 9
MDS-25C 12 1 25000 2.1×10-6 630 0.02 0.7 ±0.2 19
MDS-32C 15 2.5 19000 7.2×10-6 1600 0.02 0.7 ±0.2 41
MDS-40C 20 3.5 15000 1.3×10-5 2600 0.02 0.7 ±0.2 68
MDS-50C 25 9 12000 6.1×10-5 3100 0.02 0.7 ±0.2 140
MDS-63C 30 12.5 10000 1.7×10-4 4200 0.02 0.7 ±0.2 250

*1: Correction of rated torque due to load fluctuation is not required. For more detailed information, please refer to Selection Guidelines.
*2: These are values with max. bore diameter.

Part Number Standard Bore Diameter D1・D2
4 5 6 6.35 7 8 9 10 11 12 14 15 16 17 18 19 20 22 24 25 28 30
MDS-19C - - - - - - - - - - - - - - - - -
MDS-25C - - - - - - - - - - - - - - -
MDS-32C - - - - - - - - - - - - - - - -
MDS-40C - - - - - - - - - - -
MDS-50C - - - - - - - - - - - -
MDS-63C - - - - - - - - - - -

● All products are provided with hex socket head cap screw.
● Recommended tolerance for shaft diameters is h6 and h7.
● In case of mounting on D-cut shaft, be careful about the position of the D-cut surface of the shaft. ⇒Mounting and Maintenance
● Bore and keyway modifications are available on request. Please take advantage of our modification services.

Structure

Clamping Type

MDSFlexible Couplings - Single-Disk Type


Material/Finish

MDS-C
Hub A2017
Anodized
Disk SUS304
Pin SUS303
Collar SUS303
Hex Socket Head Cap Screw SCM435
Ferrosoferric Oxide Film (Black)

Characteristics

  • Recommended Applicable Motor
MDS-C
Servomotor
Stepping Motor
General-purpose Motor

◎: Excellent ○: Very good ●: Available

  • Property
MDS-C
Zero Backlash
Allowable Misalignment

◎: Excellent ○: Very good

  • This is a disk type flexible coupling.
  • It has compact design with short entire length.
  • The stainless steel disk allows eccentricity, and angular misalignment, and end-play.

Application

Actuator / XY stage

Related Products

The Single-Disk type Flexible Coupling XHS-C is compatible with the servomotor with 350% instantaneous max. torque is available.
XHS-C

MDSFlexible Couplings - Single-Disk Type


Related Service

Product List

Customer Service

  • Usage Method
  • Technical Question
  • Customization Products
USA and Canada

NBK America LLC

9:00 to 17:00 on weekdays, Eastern Standard Time

Asia and Europe

Nabeya Bi-tech Kaisha

9:00 to 17:15 on weekdays, Japan Standard Time