Dimension Drawing
Specs/CAD
| Part Number | A | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| MSX-16 | 16 | 6 | 17.4 | 3 | M3 | 0.7 | 36.54 | CAD | Cart | ||
| MSX-19 | 19 | 6.8 | 20 | 3.4 | M3 | 0.7 | 41.66 | CAD | Cart | ||
| MSX-24 | 24 | 8.5 | 25 | 4.25 | M4 | 1.7 | 48.17 | CAD | Cart | ||
| MSX-29 | 29 | 10.2 | 30 | 5.1 | M4 | 1.7 | 54.00 | CAD | Cart | ||
| MSX-34 | 34 | 12 | 35 | 6 | M5 | 4 | 77.02 | CAD | Cart | ||
| MSX-39 | 39 | 13.5 | 40 | 6.75 | M5 | 4 | 82.60 | CAD | Cart | ||
| MSX-44 | 44 | 15.5 | 45 | 7.75 | M6 | 7 | 96.93 | CAD | Cart |
| Part Number | Max. Bore Diameter (mm) |
Rated Torque＊1 (N・m) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| MSX-16 | 8 | 0.5 | 39000 | 2.8×10-7 | 200 | 0.05 | 0.5 | ±0.1 | 7 |
| MSX-19 | 10 | 1 | 33000 | 6.2×10-7 | 270 | 0.05 | 0.5 | ±0.1 | 10 |
| MSX-24 | 12 | 1.5 | 26000 | 2.0×10-6 | 790 | 0.05 | 0.5 | ±0.1 | 22 |
| MSX-29 | 14 | 2 | 21000 | 5.2×10-6 | 1400 | 0.05 | 0.5 | ±0.1 | 40 |
| MSX-34 | 18 | 3 | 18000 | 1.1×10-5 | 2200 | 0.05 | 0.5 | ±0.1 | 64 |
| MSX-39 | 20 | 6 | 16000 | 2.9×10-5 | 4100 | 0.05 | 0.5 | ±0.1 | 90 |
| MSX-44 | 22 | 9 | 14000 | 5.5×10-5 | 5100 | 0.05 | 0.5 | ±0.1 | 133 |
＊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 (Dimensional Allowance H8) D1･D2 |
||||
|---|---|---|---|---|---|
| MSX-16 | 5-5 | 5-6 | 6-6 | ||
| MSX-19 | 5-5 | 5-6 | 5-7 | 5-8 | 6-6 |
| 6-6.35 | 6-7 | 6-8 | 6.35-6.35 | 6.35-8 | |
| 8-8 | 8-10 | 10-10 | |||
| MSX-24 | 6-6 | 6-8 | 6-10 | 6.35-6.35 | 6.35-8 |
| 6.35-10 | 7-8 | 8-8 | 8-9.525 | 8-10 | |
| 9.525-10 | 10-10 | 10-11 | 10-12 | 11-12 | |
| 12-12 | |||||
| MSX-29 | 8-8 | 8-10 | 8-11 | 8-12 | 10-10 |
| 10-11 | 10-12 | 10-14 | 11-12 | 11-14 | |
| 12-12 | 12-14 | ||||
| MSX-34 | 10-14 | 11-14 | 12-12 | 12-14 | 12-16 |
| 14-14 | 14-15 | 14-16 | 15-15 | 15-16 | |
| 16-16 | |||||
| MSX-39 | 10-14 | 12-12 | 12-14 | 12-15 | 12-16 |
| 12-19 | 14-14 | 14-15 | 15-15 | 15-16 | |
| 16-16 | |||||
| MSX-44 | 12-12 | 12-14 | 12-19 | 14-14 | 14-15 |
| 14-16 | 15-15 | 15-16 | 15-19 | 15-20 | |
| 20-20 | |||||
●All products are provided with hex socket set screws.
●Recommended tolerance for shaft diameters is h6 and h7.
●Bore modifications are available on request. Please take advantage of our modification services.
●For the shaft insertion amount to the coupling, see Mounting/maintenance. ⇒Mounting and Maintenance
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 |
|---|---|---|---|---|
|
mm
in.
|
mm
in.
|
Cart |
| 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 | |||||
| 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 |
- Refer to the "Couplicon Bore Diameter Additional Modification Service" for more information.
- BT： Additional modification of bore
- KT： Metric Keyway Modification (JIS Standard)
- KA： Inch Keyway Modification (AGMA Standard)
Material/Finish
| MSX | |
|---|---|
| Main Body | A7075 Anodized |
| Hex Socket Set Screw | SCM435 Ferrosoferric Oxide Film (Black) |
| Hex Socket Head Cap Screw | SCM435 Ferrosoferric Oxide Film (Black) |
Characteristics
- Applicable motors
| MSX | |
|---|---|
| Servomotor | ◎ |
| Stepping Motor | ◎ |
| General-purpose Motor | ● |
- Property
| MSX | |
|---|---|
| Zero Backlash | ◎ |
| High Torque | ○ |
| High Torsional Stiffness | ◎ |
- This is a metal spring coupling with single-piece construction. A slit is inserted into a cylindrical material.
- It has an extremely high torsional stiffness and low moment of inertia.
- Extra super duralumin (A7075) featuring the highest strength among aluminum alloy is adopted.
- A plate spring formed by a slit allows eccentricity, angular misalignment, and end-play to be accepted.
Application
Actuator / High precision XY stage / Index tableSelection
Selection Based on Shaft Diameter and Rated Torque
The area bounded by the shaft diameter and rated torque indicates the selection size.
Selection Example
In case of selected parameters of shaft diameter of φ 15 and load torque of 2 N•m, the selected size is MSX-34or MSX-34C.Selection Based on the Rated Output of the Servomotor
| Rated Output (W) |
Servomotor Specifications＊1 | Selection Size | |||
|---|---|---|---|---|---|
| Diameter of Motor Shaft (mm) |
Rated Torque (N・m) |
Instantaneous Max. Torque (N・m) |
MSX | MSX-C | |
| Set Screw Type | Clamping Type | ||||
| 10 | 5 - 6 | 0.032 | 0.096 | MSX-16 | MSX-16C |
| 20 | 5 - 6 | 0.064 | 0.19 | MSX-16 | MSX-16C |
| 30 | 5 - 7 | 0.096 | 0.29 | MSX-19 | MSX-19C |
| 50 | 6 - 8 | 0.16 | 0.48 | MSX-19 | MSX-19C |
| 100 | 8 | 0.32 | 0.95 | MSX-19 | MSX-19C |
| 200 | 9 - 14 | 0.64 | 1.9 | MSX-29 | MSX-34C |
| 400 | 14 | 1.3 | 3.8 | MSX-39 | MSX-39C |
| 750 | 16 - 19 | 2.4 | 7.2 | MSX-44 | MSX-44C |
＊1： Motor specifications are based on general values. For details, see the motor manufacturer's catalogs. This is the size for cases where devices such as reduction gears are not used.
Eccentric Reaction Force
Thrust reaction force
Change in static torsional stiffness due to temperature
This is a value under the condition where the static torsional stiffness at 20°C is 100%.The change of MSX in torsional stiffness due to temperature is small and the change in responsiveness is extremely small. If the unit is used under higher temperature, be careful about misalignment due to elongation or deflection of the shaft associated with thermal expansion.
Static torsional stiffness comparison (slit-type)
MSX have high static torsional stiffness and responsiveness. Optimal for high-speed and precision positioning for servomotors, etc.
