Planetary Gearboxes
Dimensioning and selection
4-3
DOK-GEAR**-GTM********-PR01-EN-P
4.2 Selection
The selection of the suitable motor/-gearbox combination, operating with
a drive-control device, is to be taken the following into consideration:
•
Frictional
torque
•
Starting
torque
•
Processing
torque
•
Accelerating
torque
•
Effective
speed
•
Necessary
speed
•
ON
time
The motor/-gearbox combination must fulfill the following conditions:
•
The necessary speed has to be able to be reached.
•
The continuous torque rating of the motor/-gearbox combination has to
be higher than the effective load torque.
•
The maximum operating torque has to be higher than the sum of the
frictional, starting and processing torque.
•
The maximum torque has to be higher than the sum of the frictional,
starting and processing torque.
•
The required acceleration time has to be within the limit of the relevant
drive selection lists.
•
The ON time of the GTM planetary gearboxes has to be smaller than
60% of the specified technical data in S4 and S5-operation.
•
The cycles of the operation modes S4 and S5 should not exceed
1,000 cycles per hour. If higher cycle rates are necessary, the GTM
gearbox must be derated accordingly (see Fig. 5-3).
Note:
It must be ensured that
•
the maximum motor torque is smaller than the maximum
gearbox–input torque.
•
the maximum motor speed is less than the maximum
permissible gearbox-input speed.
Drive-determined sizes
Dimensioning criteria
Summary of Contents for Rexroth GTM Series
Page 6: ...IV Content Planetary Gearboxes DOK GEAR GTM PR01 EN P ...
Page 28: ...4 4 Dimensioning and selection Planetary Gearboxes DOK GEAR GTM PR01 EN P ...
Page 46: ...6 12 Technical Data Planetary Gearboxes DOK GEAR GTM PR01 EN P ...
Page 72: ...10 8 Assembly Planetary Gearboxes DOK GEAR GTM PR01 EN P ...
Page 78: ...12 2 How to order Planetary Gearboxes DOK GEAR GTM PR01 EN P ...
Page 80: ......
Page 88: ...14 2 Appendix Planetary Gearboxes DOK GEAR GTM PR01 EN P ...
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