Power Rigid Couplings (Rigid Couplings )
- Tsubaki's Power Rigid Coupling is a rigid coupling for machine tools. It employs a taper-lock structure to ensure a more reliable connection.
- The Power Rigid Coupling has no flexible element, so it cannot absorb misalignment. Please use this series for applications where secure centering is available.
- ・Applicable shaft diameter :Φ16mm~Φ48mm
- ・Torque range :78~489N・m
Features
-
・Compatible with straight shafts and taper shaft.
Compatible with taper shaft servomotors. Apply Φ11 taper shafts and adaptors for Φ16 taper shafts.
-
・Secure Coupling
The adoption of the taper lock system allows for larger shaft coupling force.
-
・High Torsional Stiffness
Does not have a flexible structure, this type has high rigidity.
-
・Non-backlash
There is no backlash due to the friction of the coupling through a taper-lock.
-
・Compact & Low Moment of Inertia
The axial length is maximally reduced, allowing for more compact design. Also provides lower moment of inertia through the polygonal outer ring configuration.
Shaft bore diameter combinations
-
・Straight shaft type
(Units :mm)
Model No. | Shaft Bore Diameter D1XD2 | ||||||
---|---|---|---|---|---|---|---|
EPR50 | 16X16 | 16X20 | 20X20 | 20X22 | - | - | - |
EPR58 | 20X25 | 22X25 | 25X25 | - | - | - | - |
EPR68 | 25X30 | 30X30 | 25X35 | 28X35 | 30X35 | 32X35 | 35X35 |
EPR78 | ※Additional machining of plain bore items. Please contact us for turnaround time and machining cost. |
-
・Tapered shaft type
(Units :mm)
Model No. | Shaft Bore Diameter D1XD2(Taper Shaft Bore Diameter ) | ||
---|---|---|---|
EPR50 | 16X11T(Φ11Taper ) | 20X11T(Φ11Taper ) | 22X11T(Φ11Taper ) |
EPR58 | 20X16T(Φ16Taper ) | 22X16T(Φ16Taper ) | 25X16T(Φ16Taper ) |
Torque range
Model No. | Allowable Torque N・m |
---|---|
EPR50 | 90~139 |
EPR58 | 78~188 |
EPR68 | 144~454 |
EPR78 | 176~489 |
-
※For detailed specifications for each model number, refer to 6 term "List of Model Numbers".
Construction
-
・Straight shaft type
-
・Tapered shaft type
Catalogs ・Instruction Manuals
Model No. examples
・Straight shaft type | |||||
EPR | 50 | - | 16 | X | 20 |
| Series |
| Size ((Outer diameter) ) |
| Left Hub Shaft Bore Diameter mm |
| Right Hub Shaft Bore Diameter mm |
||
・Tapered shaft type |
|||||
EPR | 50 | - | 16 | X | 11T |
| Series |
| Size ((Outer diameter) ) |
| Left Hub Shaft Bore Diameter mm |
| Tapered bore diameter mm |
List of Model Numbers
※Click the model No. for detailed information.
Size | Straight shaft bore x Straight shaft bore | Straight shaft bore x taper shaft bore |
---|---|---|
EPR50 | EPR50-16X16 | EPR50-16X11T |
EPR50-16X20 | --- | |
EPR50-20X20 | EPR50-20X11T | |
EPR50-20X22 | EPR50-22X11T | |
EPR58 | EPR58-20X25 | EPR58-20X16T |
EPR58-22X25 | EPR58-22X16T | |
EPR58-25X25 | EPR58-25X16T | |
EPR68 | EPR68-25X30 | --- |
EPR68-25X35 | --- | |
EPR68-28X35 | --- | |
EPR68-30X30 | --- | |
EPR68-30X35 | --- | |
EPR68-32X35 | --- | |
EPR68-35X35 | --- |