Dimension Drawing
Unit : mm
| Part Number | Slip Torque | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| XBW-68C5-25-32 | - | 32 | 60 | 9000 | 3.5×10-4 | 18000 | 0.3 | 2 | ±1 | 617 |
＊1： Correction of rated torque due to load fluctuation is not required. For more detailed information, please refer to Selection Guidelines.
※ The shaft's slip torque may be smaller than the coupling's rated torque depending on the shaft bore. XBW-C
＊2： These are values with max. bore diameter.Slip torque
As in the table below, the clamping types XBW-C and XBWS-C have different slip torque according to the bore diameter. Take care during selection.Unit : N・m
| Part Number | Bore Diameter (mm) | |||||||
|---|---|---|---|---|---|---|---|---|
| 3 | 4 | 6 | 8 | 10 | 11 | 14 | 15 | |
| XBW-15C2 | 1 | |||||||
| XBW-19C2 | 1.6 | |||||||
| XBW-34C3 | 5.2 | 6 | ||||||
| XBW-44C2 | 15 | |||||||
| XBW-56C3 | 25 | 32 | ||||||
| XBW-68C5 | 80 | 100 | ||||||
These are test values based on the conditions of shaft dimensional allowance: h7, hardness: 34-40 HRC, and screw tightening torque of the values described in XBW-CXBWS-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.
Unit : N・m
| Part Number | Bore Diameter (mm) | |||||||
|---|---|---|---|---|---|---|---|---|
| 4 | 6 | 8 | 10 | 11 | 12 | 14 | 15 | |
| XBWS-19C2A | 1 | |||||||
| XBWS-34C3A | 5 | |||||||
| XBWS-39C2A | 5.5 | 8 | ||||||
| XBWS-44C2A | 4.5 | 6 | 10 | |||||
| XBWS-56C3A | 9 | 13 | 18 | 25 | 28 | |||
Material/Finish
| XBW-C | |
|---|---|
| Hub | A7075＊1 |
| Spacer | A7075＊1 |
| Disk Fixing Bolts | SCM435 Ferrosoferric Oxide Film (Black) |
| Disk | SUS304 |
| Collar | SUS304 |
| Hex Socket Head Cap Screw | SCM435 Ferrosoferric Oxide Film (Black) |
*1: Anodized products are also available. Please contact our customer service.
Characteristics
- Recommended Applicable Motor
| XBW-C | XBWS-C | |
|---|---|---|
| Servomotor | ◎ | ◎ |
| Stepping Motor | ◎ | ◎ |
| General-purpose Motor | ● | ● |
- Property
| XBW-C | XBWS-C | |
|---|---|---|
| Zero Backlash | ◎ | ◎ |
| High Torque | ○ | ○ |
| High Torsional Stiffness | ◎ | ◎ |
| Allowable Misalignment | ○ | ○ |
| Corrosion Resistance (All S.S.) | - | ◎ |
- This is a disk type flexible coupling.
- The stainless steel disk allows eccentricity, and angular misalignment, and end-play.
- Wide variation of outside diameter φ 15 - φ 104 and bore diameter φ 3 - φ 50.
- Extra super duralumin (A7075) featuring the highest strength among aluminum alloy is adopted for XBW-C hubs.
- XBWS-C is the all stainless steel type with stainless steel hubs.
Application
Actuator / Surface-mount machine / 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 φ30 and load torque of 40 N•m, the selected size is XBW-68C5.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) |
XBW-C | XBWS-C | |
| Aluminum Alloy Hub | Made of All Stainless Steel | ||||
| 10 | 5 - 6 | 0.032 | 0.096 | XBW-15C | XBWS-15C |
| 20 | 5 - 6 | 0.064 | 0.19 | XBW-15C | XBWS-15C |
| 30 | 5 - 7 | 0.096 | 0.29 | XBW-19C | XBWS-19C |
| 50 | 6 - 8 | 0.16 | 0.48 | XBW-19C | XBWS-19C |
| 100 | 8 | 0.32 | 0.95 | XBW-19C | XBWS-25C |
| 200 | 9 - 14 | 0.64 | 1.9 | XBW-27C | XBWS-34C |
| 400 | 14 | 1.3 | 3.8 | XBW-34C | XBWS-39C |
| 750 | 16 - 19 | 2.4 | 7.2 | XBW-39C | XBWS-56C |
＊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 XBW-C and XBWS-C 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 (disc-type)
Related Products
The Double-Disk type Flexible Coupling XHW-C is compatible with the servomotor with 350% instantaneous max. torque is available.XHW-C
