Technical data

Manual – Gear Units and Gearmotors

Adapter with hydraulic centrifugal coupling AT (→ GK)

Project Planning for Components on the Input Side

6.4 Adapter with hydraulic centrifugal coupling AT (→ GK)

SEW helical, parallel shaft helical, helical-bevel and helical-worm gear units can be

combined with adapters and hydraulic centrifugal couplings for machines with high

inertia starting (e.g. mixers, agitators, etc.). The hydraulic centrifugal coupling protects

the motor and the driven machine against overload during the startup phase and

ensures that the machine starts up smoothly. The coupling is installed in a housing to

prevent anyone touching it. Cooling of the coupling is ensured via ventilation openings

in the housing. It is possible to mount SEW motor sizes 71 to 180 (0.50 to 30 Hp)

Preferred speeds are 1800 rpm and 3600 rpm, i.e. 4 or 2-pole attached motors. There

is increased noise development in 2-pole drive combinations.

04607AXX

Figure 24: Parallel shaft helical gear unit with adapter AT

1) Helical-bevel gear units with a hydraulic centrifugal coupling on a swing base are available for motors of

size 200 to 280 (40 to 120 Hp).