XGL2
Flexible coupling – High – gain rubber type – Long type
Dimension Drawing
Dimensions/Specifications/CAD
| Part Number | A | L | W | F | G | M | Wrench Torque (N･m) |
|---|---|---|---|---|---|---|---|
| XGL2-15C | 15 | 6.5 | 30 | 2.15 | 5 | M1.6 | 0.25 |
| XGL2-19C | 19 | 7.7 | 34 | 2.65 | 6.5 | M2 | 0.5 |
| XGL2-25C | 25 | 9.5 | 42 | 3.25 | 9 | M2.5 | 1 |
| XGL2-30C | 30 | 11 | 42 | 4 | 11 | M3 | 1.5 |
| XGL2-34C | 34 | 12 | 44 | 4 | 12.25 | M3 | 1.5 |
| XGL2-39C | 39 | 15.5 | 55 | 4.5 | 14.5 | M4 | 2.5 |
| Part Number | Max. Bore Diameter(mm) | Rated Torque*(N・m) | Max. Torque* (N・m) | Max.Rotational | Static Torsional Stiffness (N・m/rad) | Max. Lateral Misalignment(mm) | Max. Angular Misalignment(°) | Max. Axial Misalignment(mm) | Mass** |
|---|---|---|---|---|---|---|---|---|---|
| XGL2-15C | 6 | 1.1 | 2.2 | 42000 | 82 | 0.15 | 1.5 | ±0.2 | 11 |
| XGL2-19C | 8 | 2.1 | 4.2 | 33000 | 210 | 0.15 | 1.5 | ±0.2 | 20 |
| XGL2-25C | 12 | 4 | 8 | 25000 | 300 | 0.15 | 1.5 | ±0.2 | 40 |
| XGL2-30C | 15 | 6.3 | 12.6 | 21000 | 540 | 0.2 | 1.5 | ±0.3 | 56 |
| XGL2-34C | 16 | 8 | 16 | 18000 | 640 | 0.2 | 1.5 | ±0.3 | 78 |
| XGL2-39C | 20 | 13.5 | 27 | 16000 | 950 | 0.2 | 1.5 | ±0.3 | 122 |
*Adjustment of rated and max. torque specifications for load fluctuations is not required.
However, if operating temperature exceeds 30℃, please adjust rated torque and max. torque as detailed in the table below.
The operational temperature range for XGT is -20℃ to 80℃. For more detailed information, please refer to Selection Guidelines [PDF 171KB].
**Based on the max. shaft bores.
| Part Number | Stock Bores D1-D2 | ||||
|---|---|---|---|---|---|
| XGL2-15C | 3-5 | 5-5 | 5-6 | ||
| XGL2-19C | 4-5 | 5-5 | 5-6 | 5-7 | 5-8 |
| 6-6 | 6-6.35 | 6-8 | 6.35-8 | 8-8 | |
| XGL2-25C | 5-8 | 6-8 | 6-10 | 6.35-8 | 8-8 |
| 8-10 | 8-11 | 8-12 | 10-10 | 10-12 | |
| XGL2-30C | 8-8 | 8-10 | 8-11 | 8-12 | 8-14 |
| 8-15 | 10-10 | 10-11 | 10-14 | 11-12 | |
| 12-14 | |||||
| XGL2-34C | 8-8 | 8-10 | 8-12 | 8-14 | 10-11 |
| 10-14 | 11-12 | 12-14 | 14-15 | ||
| XGL2-39C | 10-10 | 10-12 | 10-14 | 12-14 | 14-15 |
| 15-19 | |||||
- All products come with set screws.
- Recommended tolerance for shaft diameters is h6 and h7.
- Bore and keyway modifications are available on request. Please take advantage of our bore modification services.
For more information please refer to Custom Bore Modifications [PDF 495KB]
Material/Finish
| XGT2-C/XGL2-C/XGS2-C | |
|---|---|
| Hub | A2017 |
| Vibration-absorbing rubber | FKM |
| Hex Socket Head Cap Screw | SCM435 Ferrosoferric Oxide Film（Black） |
Structure
Clamping type
XGT2-C Standard typeXGT2
XGL2-C Long typeXGL2
XGS2-C Short typeXGS2
Internal Structure
Characteristics
- Servomotor
XGT2/XGL2/XGS2 Servomotor ◎ Stepping Motor ◎ General-purpose motor ◎ ◎: Excellent ○: Very good
- Property
XGT2/XGL2/XGS2 Zero Backlash ◎ For servomotor high gain ◎ High torque ◎ High Torsional Stiffness ◎ Allowable Misalignment ○ Vibration absorption ◎ Allowable operating temperature -10℃ to 120℃ ◎: Excellent ○: Very good
- High-gain flexible coupling which surpasses of XGT,XGL,XGS in performance. This is a singlepiece construction with the two aluminum hubs molded with vibration-absorbing rubber.
- He optimal damping and rigidity design enables realization of even greater servomotor gain, leading to a reduction in stabilization time.
- Suppresses speed unevenness during stepping motor operation.
- Contributes to improved productivity and quality by suppressing residual vibration during positioning.
- Features outstanding thermal, oil and chemical resistance.
- Standard type XGT2 , Long type XGL2 and Short type XGS2 standardized.
Application
Semiconductor manufacturing equipment / Mount machines /
Machine tools / Packaging machines
Selection
The area bounded by the shaft diameter and rated torque indicates is the selection size.
Selection example
In case of selected parameters of shaft diameter of φ16 and load torque of 7N•m, the selection size is XGT2-34C .
| Rated output（W） | Selection size | XGT2 | XGL2 | XGS2 | ||
|---|---|---|---|---|---|---|
| Diameter of motor shaft （mm） | Rated torque （N・m） | Instantaneous max.torque（N・m） | ||||
| 10 | 5-6 | 0.032 | 0.096 | 15C | 15C | 15C |
| 20 | 5-6 | 0.064 | 0.19 | 15C | 15C | 15C |
| 30 | 5-7 | 0.096 | 0.29 | 19C | 19C | 19C |
| 50 | 6-8 | 0.16 | 0.48 | 19C | 19C | 19C |
| 100 | 8 | 0.32 | 0.95 | 19C | 19C | 25C |
| 200 | 9-14 | 0.64 | 1.9 | 27C | 30C | 27C |
| 400 | 14 | 1.3 | 3.8 | 27C | 30C | 34C |
| 750 | 16-19 | 2.4 | 7.2 | 39C | 39C | – |
＊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.
Ambient Temperature / Temperature Correction Factor
| Ambient temperature | Temperature correction factor |
|---|---|
| -10℃ to 30℃ | 1.00 |
| 30℃ to 40℃ | 0.80 |
| 40℃ to 60℃ | 0.70 |
| 60℃ to 120℃ | 0.55 |
Thrust Reaction Force
This is a force generated when compressing XGT2,XGL2,XGS2 in the shaft direction. As the thrust reaction force becomes smaller, the force acting on the motor also becomes smaller.
Slip Torque
Concerning the sizes shown in the following table, please note that the shaft’s slip torque is smaller than the max. torque of XGT2-C,XGL2-C,XGS2-C .
| Size | Bore Diameter（mm） | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 4 | 4.5 | 5 | 6 | 6.35 | 7 | 8 | 10 | 11 | 12 | 14 | 15 | 16 | 17 | 19 | 20 | |
| 15C | 1 | 1.3 | 1.6 | 1.8 | 1.9 | ||||||||||||
| 19C | 2.3 | 3.1 | 3.1 | 3.3 | 4 | ||||||||||||
| 25C | 4.7 | 5 | 5.6 | 6.8 | |||||||||||||
| 30C | 7.5 | 11 | |||||||||||||||
| 34C | 8.3 | 10.5 | 10.7 | 12 | 13.4 | ||||||||||||
| 39C | 13.3 | 15.2 | 17.1 | 20.8 | 18.9 | 25.7 | |||||||||||
| 44C＊ | 19.1 | 21.3 | 22.7 | 23.5 | 23.6 | 27.5 | 29.1 | ||||||||||
| 56C＊ | 45 | 50 | 69.4 | ||||||||||||||
These are test values based on the condition of shaft’s dimensional allowance: h7, hardness: 34 – 40 HRC, and screw tightening torque of the values described in XGT2-C,XGL2-C,XGS2-C Dimension table.
＊This is a size only for XGT2-C .
Eccentric Reaction Force
This is a force generated when making XGT2,XGL2,XGS2 in eccentric condition.
As the eccentric reaction force becomes smaller, the force acting on the shaft bearing also becomes smaller.
