Gearbox; Dimensioning The Gearbox - Siemens 1FT7 Configuration Manual

Motor components

5.4 Gearbox

5.4 Gearbox
5.4.1

Dimensioning the gearbox

Overview
● The following influencing parameters should be taken into consideration:
● Technical data should be obtained from the catalogs of the gearbox manufacturers and
● If the gearbox oil is in contact with the motor flange, then suitable shaft and flange seals
Dimensioning for S3 duty
When engineering geared drive systems you can use the motor characteristic without
reduction. Please note the permissible maximum torque and the permissible gearbox input
speed.
M
Mot
The motor and gearbox are assigned as follows: M
M
max, gear
M
0 (100 K)
i
f
NOTICE
Switching cycles can also be superimposed vibration! The supplementary factor (f
not sufficient when dimensioning the gearbox and gearboxes may fail.
The complete system should be optimized so that the higher-level vibration is minimized.
212
– acceleration torque, permanent torque, number of cycles, cycle type, permissible input
speed, mounting position, torsional backlash, torsional stiffness, and radial and axial
forces.
– Worm gearboxes are only conditionally suitable for reversing operation with servo
applications.
similar sources.
must be selected.
= M / (i ∙ η )
out G
Max. permissible drive torque
Motor static torque
Gear ratio
Supplementary factor f = f
f = 2
1
f = 1
2
f > 1
2
e.g. f
max, gear
∙ f
1 2
for motor accelerating torque
for ≤1000 gearbox switching cycles / h
for > 1000 switching cycles / h (refer to the gearbox catalog)
= 1.5 for 3000 switching cycles / h
2
f = 1.8 for 5000 switching cycles / h
2
f = 2.0 for 8000 switching cycles / h
2
Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
≥ M ∙ i ∙ f
0 (100 K)
1FT7 Synchronous Motors
) is then
2