Planetary gear units let you precisely adapt the speed and the force of a motor to specific customer applications. The optimum design depends on the relation between duty cycle with motion profile and gearbox, motor and servo amplifier design.
Motion components selected and orchestrated this way mean long machine lifetime at economic allocation of resources.
The transmission ratio of the 1- to 3-stage gear units ranges between i = 3 and i = 1000.
The transmission rate lets you improve the ratio between external and internal rotor inertia - J load to J (motor and gear unit) - in such a way that smooth running of the axis is guaranteed, while resonant vibrations are prevented.
We also offer gear units fitting for larger Jetter motors of flange size 7 to 8. If you wish, we also provide planetary gear units already connected with the Jetter servo motors.
|Backlash in arcmin <||15 ... 10||10 ... 5||5 ... 1|
|Jetter motor flange||1 ... 7||1 ... 7||2 ... 7|
|Gearbox flange||B14||B14, B5, block flange||B5, block flange|
|Ball bearing options||Twin groove ball bearing||Twin groove ball bearing or reinforced ball bearing = twin tapered roller bearing||Twin tapered roller bearing|
|Torsional rigidity||medium||medium ... high||very high|
|Degree of protection||IP54 or IP65||IP65||IP65|
|Conformity to RoHS||Yes||Yes||Yes|
|Transmission rates||3 … 1000||3 … 1000||3 … 100|
|Input speed||… 6000 rpm||3000 … 4500 rpm||3000 … 4500 rpm|
|Rated torque [Nm]||… 1200 Nm||… 1200 Nm||… 3000 Nm|
|Service life||20 000 … 30 000 h (bearings)||> 20 000 h (bearings)||> 20 000 h (bearings)|
e.g. High acceleration rates, numerous changes of direction, high radial output forces at the output of the gear unit are required, the required positioning accuracy is very high, high output torques (up to 3000 Nm) (big-size motors)