Gearbox
Motors and controllers
Festo EMGA planetary gearboxes are matched for use with EMMS-AS servo motors and EMMS-ST stepper motors. Flange sizes 40, 60, 80, 120 and 160 mm with gear ratios i=3 (G3) or i=5 (G5) cover a wide torque range. Motor interface variants SAS (for EMMS-AS servo motors), SST (for EMMS-ST steppers), EAS (for third-party motors) and SEC (for combimotor flange) are available.
The P-design (planetary) gearboxes are rated for continuous duty and deliver high-torque, compact power transmission with low backlash. The adapter flange system also allows combination with third-party motors via the EAS interface.
| Type | Flange size | Motor interface | Ratio |
|---|---|---|---|
| EMGA-40-P-G3/G5-SST-42 | 40 mm | SST (stepper NEMA17) | i=3, i=5 |
| EMGA-60-P-G3/G5-SST-57 | 60 mm | SST (stepper NEMA23) | i=3, i=5 |
| EMGA-60-P-G5-SAS-70 | 60 mm | SAS (EMMS-AS-70 servo) | i=5 |
| EMGA-80-P-G3/G5-SAS-100 | 80 mm | SAS (EMMS-AS-100 servo) | i=3, i=5 |
| EMGA-80-P-G3/G5-EAS-80 | 80 mm | EAS (third-party motor) | i=3, i=5 |
| EMGA-120-P-G3/G5-SAS-100, -SAS-140 | 120 mm | SAS | i=3, i=5 |
| EMGA-160-P-G3/G5-SAS-140 | 160 mm | SAS (EMMS-AS-140) | i=3, i=5 |
| EMGC-67-A-G1-SEC-67 | 67 mm | SEC (EMCA-EC-67) | i=1 (direct) |
Typical applications: Torque multiplication for linear axes with ball screw, swivel axes and rotary tables requiring high holding torque, handling systems with restricted installation space, and the EMGC-67 paired with the integrated drive EMCA-EC-67 for a single compact drive module.
