• Couplings
  • Slit Type

MSH-13C

Flexible Couplings - Spiral Slit Type

Safety PrecautionsGlossaryMounting/maintenance

RoHS Compliant

  • Zero Backlash
  • Single-Piece Construction
MSH_CFlexible Couplings - Spiral Slit Type

Dimension Drawing

MSHFlexible Couplings - Spiral Slit Type寸法図

＊1：　E = D2 + 0.2(D2＜4)

E = D2 + 0.7 (4 ≤ D2＜E max.)

MSHFlexible Couplings - Spiral Slit Type寸法図

＊1：　E = D2 + 0.2(D2＜4)

E = D2 + 0.7 (4 ≤ D2＜E max.)

Specs/CAD

Part Number ALWE max.FGM Screw Tightening
Torque (N・m)		Standard Bore Diameter (Dimensional Allowance H8)
D1 - D2		 Price
(USD)		 CAD
Download		 Add to Cart Additional Modification
MSH-13C 13 5 19 3.6 2.5 4.4 M1.6 0.25 42.16 CAD Cart       

Part Number Max. Bore Diameter
(mm)		 Max. Rotational Frequency
(min-1)		 Moment of
Inertia
(kg・m2)＊1		Static
Torsional
Stiffness
(N･m/rad)＊1		Max. Eccentricity Max. Angular
Misalignment
(°)		 Max. Axial
Misalignment
(mm)		Mass
(g)＊1
No Load
(mm)		With Load
(mm)
MSH-13C 5 48000 6.8×10-7 4.6 0.25 0.11 5 ±0.25 5.8

＊1：　These are values with max. bore diameter.

Part Number Standard Bore Diameter (Dimensional Allowance H8)
D1-D2
MSH-8 1.5 mm - 1.5 mm 1.5 mm - 3 mm 2 mm - 2 mm 2 mm - 3 mm 3/32in - 3/32in
3/32in - 1/8in 3 mm - 3 mm 1/8in - 1/8in
MSH-13C 3 mm - 3 mm 1/8in - 1/8in 4 mm - 4 mm 4 mm - 5 mm 5 mm - 5 mm
MSH-16C 3 mm - 5 mm 1/8in - 1/8in 1/8in - 5/32in 1/8in - 3/16in 5/32in - 5/32in
5/32in - 3/16in 4 mm - 4 mm 4 mm - 5 mm 3/16in - 3/16in 3/16in - 5 mm
5 mm - 5 mm
MSH-20C 3 mm - 5 mm 1/8in - 1/8in 1/8in - 5/32in 1/8in - 3/16in 1/8in - 1/4in
5/32in - 5/32in 5/32in - 3/16in 5/32in - 1/4in 4 mm - 4 mm 4 mm - 5 mm
3/16in - 3/16in 3/16in - 5 mm 3/16in - 1/4in 5 mm - 5 mm 5 mm - 6 mm
5 mm - 1/4in 1/4in - 1/4in
MSH-26C 5 mm - 5 mm 5 mm - 6 mm 5 mm - 1/4in 1/4in - 1/4in 1/4in - 5/16in
1/4in - 8 mm 1/4in - 3/8in 1/4in - 10 mm 5/16in - 5/16in 5/16in - 3/8in
8 mm - 8 mm 8 mm - 10 mm 3/8in - 3/8in
MSH-32C 3/8in - 3/8in 3/8in - 1/2in 3/8in - 5/8in 10 mm - 10 mm 1/2in - 1/2in
1/2in - 5/8in 5/8in - 5/8in

● MSH-8 is provided with hex socket set screws.
● MSH-13C to MSH-32C are provided with hex socket head cap screws.
● Recommended tolerance for shaft diameters is h6 and h7.
● Bore modifications are available on request.
●For the shaft insertion amount to the coupling, see Mounting/maintenance. ⇒Mounting and Maintenance


Part Number Standard Bore Diameter (Dimensional Allowance H8)
D1-D2
MSH-8 1.5 mm - 1.5 mm 1.5 mm - 3 mm 2 mm - 2 mm 2 mm - 3 mm 3/32in - 3/32in
3/32in - 1/8in 3 mm - 3 mm 1/8in - 1/8in
MSH-13C 3 mm - 3 mm 1/8in - 1/8in 4 mm - 4 mm 4 mm - 5 mm 5 mm - 5 mm
MSH-16C 3 mm - 5 mm 1/8in - 1/8in 1/8in - 5/32in 1/8in - 3/16in 5/32in - 5/32in
5/32in - 3/16in 4 mm - 4 mm 4 mm - 5 mm 3/16in - 3/16in 3/16in - 5 mm
5 mm - 5 mm
MSH-20C 3 mm - 5 mm 1/8in - 1/8in 1/8in - 5/32in 1/8in - 3/16in 1/8in - 1/4in
5/32in - 5/32in 5/32in - 3/16in 5/32in - 1/4in 4 mm - 4 mm 4 mm - 5 mm
3/16in - 3/16in 3/16in - 5 mm 3/16in - 1/4in 5 mm - 5 mm 5 mm - 6 mm
5 mm - 1/4in 1/4in - 1/4in
MSH-26C 5 mm - 5 mm 5 mm - 6 mm 5 mm - 1/4in 1/4in - 1/4in 1/4in - 5/16in
1/4in - 8 mm 1/4in - 3/8in 1/4in - 10 mm 5/16in - 5/16in 5/16in - 3/8in
8 mm - 8 mm 8 mm - 10 mm 3/8in - 3/8in
MSH-32C 3/8in - 3/8in 3/8in - 1/2in 3/8in - 5/8in 10 mm - 10 mm 1/2in - 1/2in
1/2in - 5/8in 5/8in - 5/8in

● MSH-8 is provided with hex socket set screws.
● MSH-13C to MSH-32C are provided with hex socket head cap screws.
● Recommended tolerance for shaft diameters is h6 and h7.
● Bore modifications are available on request.

Part Number
Amount
Price（＄）

Check other products Cart

　　　　　　

Additional Modification Service

Modified Part Number

Enter the desired bore diameter and then click [Check Modified Part Number].

Standard bore diameter(D1) Standard bore diameter(D2) Modified Part Number Price Add to cart

unit:mm
Applicable Bore Diameter
D1D2		 keyway Key
b t Nominal Dimension
b×h
Standard Dimension Allowance
(JS9)		 Standard Dimension Allowance
6 7       2 ±0.0125 1.0 +0.1
0 		2×2
8 9 10     3 ±0.0125 1.4 3×3
11 12       4 ±0.0150 1.8 4×4
13 14 15 16 17 5 ±0.0150 2.3 5×5
18 19 20 22   6 ±0.0150 2.8 6×6
24 25 28 30   8 ±0.0180 3.3 +0.2
0 		8×7
32 35 36 38   10 ±0.0180 3.3 10×8
40 42 44     12 ±0.0215 3.3 12×8
45 48 50     14 ±0.0215 3.8 14×9
55 16 ±0.0215 4.3 16×10

unit:inch
Standard Inch Bore Diameter
D1D2		 Keyway
Wk T
Standard Dimension Allowance Standard Dimension Allowance
1/2 1/8 +0.002
  0		 0.560 +0.01
  0
9/16 1/8 +0.002
  0		 0.623 +0.01
  0
5/8 3/16 +0.002
  0		 0.709 +0.01
  0
11/16 3/16 +0.002
  0		 0.773 +0.01
  0
3/4 3/16 +0.002
  0		 0.837 +0.01
  0
13/16 3/16 +0.002
  0		 0.900 +0.01
  0
7/8 3/16 +0.002
  0		 0.964 +0.01
  0
15/16 1/4 +0.002
  0		 1.051 +0.01
  0
1 1/4 +0.002
  0		 1.114 +0.01
  0
1-1/8 1/4 +0.002
  0		 1.241 +0.01
  0
1-1/4 1/4 +0.002
  0		 1.367 +0.01
  0
1-3/8 5/16 +0.002
  0		 1.518 +0.01
  0
1-1/2 3/8 +0.002
  0		 1.669 +0.01
  0
1-5/8 3/8 +0.002
  0		 1.796 +0.01
  0
1-3/4 3/8 +0.002
  0		 1.922 +0.01
  0

Slip torque

As in the table below, the clamping types MSH-C have different slip torque according to the bore diameter. Take care during selection.

Unit : N・m

Part Number Bore Diameter（mm）
3 3.175 3.97 4 4.76 5 6 9.525
MSH-13C 0.3 0.3
MSH-16C 0.4 0.3 0.3 0.5 0.3 0.3
MSH-20C 0.4 0.6 0.8 0.6 0.9
MSH-26C 2.6 3.3
MSH-32C 5.2

These are test values based on the conditions of screw tightening torque of the values described in MSH-C dimension tables. They are not guaranteed values.
Slip torque changes with usage conditions. Carry out tests under conditions similar to actual conditions in advance.


Torque by bore

Torque Value Differs According to the Bore Diameter. Refer to the Larger Bore Diameter of D1 and D2.

Unit : N・m

Part Number Bore Diameter Torque
Instantaneous Transmission Single-Direction Rotation Forward/Reverse Rotation
MSH-8 1.5 mm 0.2 0.1 0.05
2 mm 0.17 0.08 0.04
3/32in 0.15 0.07 0.03
3 mm 0.15 0.07 0.03
1/8in 0.11 0.05 0.02
MSH-13C 3 mm 0.44 0.22 0.11
1/8in 0.42 0.21 0.1
4 mm 0.4 0.2 0.1
5 mm 0.4 0.2 0.1
MSH-16C 3 mm 0.98 0.49 0.24
1/8in 0.96 0.48 0.24
5/32in 0.86 0.43 0.21
4 mm 0.79 0.39 0.19
3/16in 0.7 0.35 0.17
5 mm 0.7 0.35 0.17
MSH-20C 3 mm 1.6 0.8 0.4
1/8in 1.57 0.78 0.39
5/32in 1.44 0.72 0.36
4 mm 1.35 0.67 0.33
3/16in 1.24 0.62 0.31
5 mm 1.2 0.6 0.3
6 mm 1.11 0.55 0.27
1/4in 1.01 0.5 0.25
MSH-26C 5 mm 4.27 2.13 1.06
6 mm 3.43 1.71 0.85
1/4in 3.32 1.66 0.83
5/16in 2.84 1.42 0.71
8 mm 2.82 1.41 0.7
3/8in 2.48 1.24 0.62
10 mm 2.48 1.24 0.62
MSH-32C 3/8in 5.78 2.89 1.44
10 mm 5.55 2.77 1.38
1/2in 4.4 2.2 1.1
5/8in 3.27 1.63 0.81

Structure

Outside diameter φ8

MSH_CFlexible Couplings - Spiral Slit Type

Outside diameter φ13 - φ32

MSH_CFlexible Couplings - Spiral Slit Type


Material/Finish

MSH
Main Body A7075
Anodized
Hex Socket Set Screw SCM435
Ferrosoferric Oxide Film (Black)
Hex Socket Head Cap Screw SCM435
Ferrosoferric Oxide Film (Black)

Characteristics

  • Recommended applicable motor
MSH
Servomotor ●
Stepping Motor ◎
General-purpose Motor ●

◎: Excellent ○: Very good ●: Available

  • Property
MSH
Zero Backlash ◎
Allowable Misalignment ◎
Small Eccentric Reaction Force ◎

◎: Excellent ○: Very good

  • This is a metal spring coupling with single-piece construction. A spiral-shaped slit is inserted into a cylindrical material.
  • Because there is no backlash and the flexibility is excellent, it is suited to use at low torque for encoders, etc.
  • The eccentric reaction force is minimal. It reduces burden on the shaft and helps prevent equipment damage.
  • Metric and inch size bore diameters are available as standard.
  • The structure is simple, enabling easy separation.

Application

Transport devices / actuators / optical equipment / encoders

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 outer diameter of the coupling and the rotating diameter is larger than the outer diameter. Please be careful of the interference of coupling. Rotation Diameter

Technical Information

Eccentric Reaction Force

MSH_CFlexible Couplings - Spiral Slit Type

Thrust Reaction Force

MSH_CFlexible Couplings - Spiral Slit Type


Related Services

Product List

MOR

Part Name

Flexible Coupling - Oldham - type - Set Screw type

Part Number

MOR

Feature

High Allowable Misalignment
High Torque

MJC-BL

Part Name

Flexible Coupling - Jaw-Type - Set Screw Type

Part Number

MJC-BL

Feature

High Torque
High-precision Cutting work

XGT2

Part Name

Flexible Couplings - High-gain Rubber Type - Standard Type

Part Number

XGT2

Feature

Zero Backlash
For High Gain
High Torque
High Torsional Stiffness
High Vibration Absorption

MWS

Part Name

Flexible Couplings - Slit Type - Set Screw Type

Part Number

MWS

Feature

Single-Piece
Construction
Zero Backlash
Low Inertia

Click here to see MSH

MSH-16C

Part Name

Flexible Couplings - Spiral Slit Type

Part Number

MSH-16C

Feature

Single-Piece Construction
Zero Backlash
Low reaction force

MSH-20C

Part Name

Flexible Couplings - Spiral Slit Type

Part Number

MSH-20C

Feature

Single-Piece Construction
Zero Backlash
Low reaction force

MSH-26C

Part Name

Flexible Couplings - Spiral Slit Type

Part Number

MSH-26C

Feature

Single-Piece Construction
Zero Backlash
Low reaction force

MSH-32C

Part Name

Flexible Couplings - Spiral Slit Type

Part Number

MSH-32C

Feature

Single-Piece Construction
Zero Backlash
Low reaction force

Click here to see Slit Type

MSTS

Part Name

Flexible Couplings - Slit Type - Set Screw Type

Part Number

MSTS

Feature

Single-Piece
Construction
Zero Backlash
High Torsional
Stiffness

MSXP-C-W-SP

Part Name

Coupling for Vacuum Variable Capacitor - Slit Type (PEEK) - Clamping Type

Part Number

MSXP-C-W-SP

Feature

Coupling for Vacuum Variable Capacitor

MWSS

Part Name

Flexible Couplings - Slit Type - Set Screw Type

Part Number

MWSS

Feature

Single-Piece
Construction
Zero Backlash
High Torque

MWSS-C

Part Name

Flexible Couplings - Slit Type - Clamping Type

Part Number

MWSS-C

Feature

Single-Piece
Construction
Zero Backlash
High Torque

Most Read

High-Gain Rubber Type Coupling XG2

High-Gain Rubber Type Coupling XG2

This suppresses servo motor hunting and greatly shortens settling time. New NBK coupling XG2. Exhibits even higher responsivity than metal disk couplings. Contributes to improving productivity, such as suppressing speed unevenness during stepper motor operation.

About Shaft Couplings

About Shaft Couplings

This page introduces flanged shaft couplings. It provides a clear introduction to the features and structure of flexible shaft couplings, fixed shaft couplings and rubber shaft couplings.

Choosing the most suitable coupling

Choosing the most suitable coupling

We also explain the basic points for selection of the "perfect couplings" to meet customer needs. If you have struggled with selecting the perfect coupling from the many available, this is a must-see.

Jaw Type Couplings Lineup List

Jaw Type Couplings Lineup List

This is the lineup list of jaw-type couplings. Select the coupling required from the lineup list.