SIEMENS
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Siemens NC 62 · 2016
Feed motors
SIMOTICS S geared motors for SINAMICS S120
Planetary gearbox series LP+ for SIMOTICS S-1FK7
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Overview
SIMOTICS S-1FK7 motor with mounted LP+ planetary gearbox
SIMOTICS S-1FK7 motors can easily be combined with planetary
gearboxes to form compact coaxial drive units. The gearboxes
are flanged directly to the drive end of the motors.
When selecting the gearbox, ensure that its maximum permissible
input speed is not exceeded by the maximum speed of the motor.
In the case of high operating frequencies, allowance must be
made for the factor
f
2
(see Configuration Manual,
SIMOTICS S-1FK7 synchronous motors). The frictional losses
of the gearbox must always be taken into account.
The gearboxes are only available in non-balanced design and
with feather key.
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Benefits
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High efficiency, single-stage: > 97 %
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Minimum torsional backlash
Single-stage:
≤
12 arcmin
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Power transmission from the central sun wheel via planet
wheels
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No shaft deflections in the planet wheel set due to symmetrical
force distribution
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The gearboxes are connected to the motor shaft via an
integrated clamping hub. A plain motor shaft extension is
necessary for this purpose. Shaft and flange accuracy
tolerance N in accordance with DIN 42955 and vibration
severity grade A in accordance with EN 60034-14 are
sufficient. The motor flange is adapted by means of adapter
plates.
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Output shaft of gearbox exactly coaxial with the motor
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The gearboxes are suitable for all mounted systems.
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The gearboxes are enclosed (seal between gearbox and
motor) and filled with grease in the factory.
They are lubricated and sealed for their service life.
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Degree of protection of gearbox: IP64
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Small dimensions
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Low weight
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Integration
S-1FK702 to 1FK710 SIMOTICS motors can be supplied ex
works (Siemens AG) complete with flange-mounted planetary
gearbox.
The gearboxes assigned to the individual motors and the gear
ratios
i
available for these motor/gearbox combinations are listed
in the subsequent selection table. The maximum permissible
input speed of the gearbox (this is the same as the maximum
motor speed) must be taken into account when a gearbox is
selected.
The motor/gearbox combinations listed in the selection table are
mainly intended for cycle operation S3-60 % (ON time
≤
60 %
and
≤
20 min). Reduced maximum motor speeds and output
torques apply for use in S1 continuous duty (ON time > 60 % or
> 20 min). The gearbox temperature may not exceed 90 °C
(194 °F).
Follow the instructions contained in the Configuration Manual
for SIMOTICS S-1FK7 synchronous motors when assigning
gearboxes to the motor.
© Siemens AG 2016