Gearbox
9.2 Motors with planetary gears
Synchronous Motors 1FK7
200 Configuration Manual, (PFK7S), Edition 12.2006, 6SN1197-0AD16-0BP1
9.2.2 Characteristics of the LP+ series
Overview
1FK7 motors can 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 gearboxes, ensure that the permissible speed of the gearbox is not
exceeded by the maximum speed of the motor. In the case of high operating frequencies,
allowance must be made for the withstand ratio
f
2
.
The frictional losses of the gearbox must always be taken into account when engineering
geared drives.
The gearboxes are only available in a non-balanced design and with fitted key.
Benefits
• High efficiency, single-stage: > 97 %
• Torsional backlash, single-stage: ≤ 12 arcmin
• Power transmission from the central sun wheel to the planetary pinions
• No shaft deflections in the planetary pinions set due to the symmetrical force distribution
• The gearboxes are connected to the motor shaft via an integrated clamping hub A plain
motor shaft end is necessary for this purpose. Radial eccentricity 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 via adapter plates.
• Output shaft of gearbox exactly coaxial with the motor
• The gearboxes can be mounted in any position
• The gearboxes are sealed (seal between gearbox and motor) and filled with grease in
the factory. They are lubricated and sealed for their service life.
• Gear unit degree of protection IP64
• Small dimensions
• Low weight
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