• Couplings
  • Disk Type

MHW

Flexible Couplings - Disk Type

  • Zero Backlash
  • Low Inertia

Dimension Drawing

MHWFlexible Couplings - Disk Type寸法図

Specs/CAD

Unit : mm

Part Number A L W C s1 E F G M Screw Tightening
Torque (N・m)
Standard Bore Diameter
D1-D2
CAD RFQ
MHW-32C 32 13.7 40 22 9 15 4 8 M3 1.5 - CAD RFQ
MHW-40C 40 16.5 46 28 12 20 6 10.5 M4 2.5 - CAD RFQ
MHW-50C 50 19.4 52 39 15 25 7 14.75 M5 7 - CAD RFQ
MHW-63C 63 22.3 58 45 18 32 8 17 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
MHW-32C 10 2 19000 6.2×10-6 1000 0.15 2 ±0.4 48
MHW-40C 14 4 15000 1.6×10-5 1500 0.2 2 ±0.5 81
MHW-50C 20 7.5 12000 4.6×10-5 2000 0.2 2 ±0.6 150
MHW-63C 25 10 10000 1.1×10-4 2500 0.3 2 ±0.8 230

*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
6 8 10 11 12 14 15 16 18 19 20 25
MHW-32C - - - - - - - - -
MHW-40C - - - - - - -
MHW-50C - - - - -
MHW-63C - - - - - -

● All products are provided with hex socket head cap screw.
● Recommended tolerance for shaft diameters is h6 and h7.
● Bore and keyway modifications are available on request. Please take advantage of our modification services.


Part Number Standard Bore Diameter D1・D2
6 8 10 11 12 14 15 16 18 19 20 25
MHW-32C-6-6 - - - - - - - - -
MHW-32C-6-8 - - - - - - - - -
MHW-32C-6-10 - - - - - - - - -
MHW-32C-8-8 - - - - - - - - -
MHW-32C-8-10 - - - - - - - - -
MHW-32C-10-10 - - - - - - - - -
MHW-40C-8-8 - - - - - - -
MHW-40C-8-10 - - - - - - -
MHW-40C-8-11 - - - - - - -
MHW-40C-8-12 - - - - - - -
MHW-40C-8-14 - - - - - - -
MHW-40C-10-10 - - - - - - -
MHW-40C-10-11 - - - - - - -
MHW-40C-10-12 - - - - - - -
MHW-40C-10-14 - - - - - - -
MHW-40C-11-11 - - - - - - -
MHW-40C-11-12 - - - - - - -
MHW-40C-11-14 - - - - - - -
MHW-40C-12-12 - - - - - - -
MHW-40C-12-14 - - - - - - -
MHW-40C-14-14 - - - - - - -
MHW-50C-12-12 - - - - -
MHW-50C-12-14 - - - - -
MHW-50C-12-15 - - - - -
MHW-50C-12-16 - - - - -
MHW-50C-12-18 - - - - -
MHW-50C-12-19 - - - - -
MHW-50C-12-20 - - - - -
MHW-50C-14-14 - - - - -
MHW-50C-14-15 - - - - -
MHW-50C-14-16 - - - - -
MHW-50C-14-18 - - - - -
MHW-50C-14-19 - - - - -
MHW-50C-14-20 - - - - -
MHW-50C-15-15 - - - - -
MHW-50C-15-16 - - - - -
MHW-50C-15-18 - - - - -
MHW-50C-15-19 - - - - -
MHW-50C-15-20 - - - - -
MHW-50C-16-16 - - - - -
MHW-50C-16-18 - - - - -
MHW-50C-16-19 - - - - -
MHW-50C-16-20 - - - - -
MHW-50C-18-18 - - - - -
MHW-50C-18-19 - - - - -
MHW-50C-18-20 - - - - -
MHW-50C-19-19 - - - - -
MHW-50C-19-20 - - - - -
MHW-50C-20-20 - - - - -
MHW-63C-15-15 - - - - - -
MHW-63C-15-16 - - - - - -
MHW-63C-15-18 - - - - - -
MHW-63C-15-19 - - - - - -
MHW-63C-15-20 - - - - - -
MHW-63C-15-25 - - - - - -
MHW-63C-16-16 - - - - - -
MHW-63C-16-18 - - - - - -
MHW-63C-16-19 - - - - - -
MHW-63C-16-20 - - - - - -
MHW-63C-16-25 - - - - - -
MHW-63C-18-18 - - - - - -
MHW-63C-18-19 - - - - - -
MHW-63C-18-20 - - - - - -
MHW-63C-18-25 - - - - - -
MHW-63C-19-19 - - - - - -
MHW-63C-19-20 - - - - - -
MHW-63C-19-25 - - - - - -
MHW-63C-20-20 - - - - - -
MHW-63C-20-25 - - - - - -
MHW-63C-25-25 - - - - - -

● All products are provided with hex socket head cap screw.
● Recommended tolerance for shaft diameters is h6 and h7.
● Bore and keyway modifications are available on request. Please take advantage of our modification services.

Structure

Clamping Type

MHWFlexible Couplings - Disk Type


Material/Finish

MHW-C
Hub A2017
Anodized
Spacer A2017
Anodized
Disk SUS301
Pin SUS303
Collar SUS303
Hex Socket Head Cap Screw SCM435
Ferrosoferric Oxide Film (Black)

Characteristics

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

◎: Excellent ○: Very good ●: Available

  • Property
MHW-C
Zero Backlash
Allowable Misalignment

◎: Excellent ○: Very good

  • This is a disk type flexible coupling.
  • The stainless steel disk allows eccentricity, and angular misalignment, and end-play.

Application

XY stage / Transport device

Precautions for Use

In case of mounting on D-cut shaft, be careful about the position of the D-cut surface of the shaft. ⇒Mounting and Maintenance
There are sizes where the hex socket head bolt exceeds the hub outer diameter of the coupling and the rotating diameter is larger than the hub outer diameter. Please be careful of the interference of coupling.


Related Products

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

MHWFlexible Couplings - 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