
Gearbox
Planetary gearbox
1FK7 Synchronous Motors
5-36
Configuration Manual (PFK7), 10/2005 Edition, 6SN1197-0AD06-0BP1
5.3.2.2
Benefits
•
High efficiency:
> 97% single-stage
> 94% 2-stage
•
Minimum torsional play:
<= 4 arcmin single-stage
<= 6 arcmin 2-stage
•
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
•
Very low moment of inertia and hence short acceleration times of the motors
•
Output shaft bearings dimensioned for high cantilever and axial loads with preloaded
tapered-roller bearings
•
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 to
DIN 42955 and vibration severity grade N to EN 60034-14 are sufficient. The motor
flange is adapted via adapter plates.
•
Output shaft of the gearbox exactly coaxial with the motor
•
The gearboxes are sealed (seal between gear unit and motor) and filled with grease in the
factory. They are lubricated for life and sealed. Gearboxes, frame sizes SP060S to SP
180S are suitable for all mounting positions.
•
The quantity of oil in gearboxes, frame sizes SP210 and SP240 depends on the mounting
position. The mounting position has to be specified when ordering.
•
Gearbox degree of protection IP65 (IP64 for frame sizes SP 210 and SP 240)
•
Small dimensions
•
Low weight
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