SEW EURODRIVE
186
Segmented girth gears
Features
− Girth gear pitch diameter up to about 16 m*
− Maximum width 600 mm
− Maximum power 4 000 kW per pinion
− Maximum pitch line velocity 6 m/s
− Girth gear module 20, 25, 30, and 40 mm
− Calculated according to ISO standard 6336 (AGMA on request)
Advantages
Highly segmented girth gears, segments
1.
Easy casting
The design of the feeders and the use of heat sinks guarantee a seamless casting quality
even with critical segments
2.
Convenient handling
-
The handling of the individual segments and component groups is simplified both in the
factory and at the construction site
-
No need for special transportation arrangements: segmented girth gears can be transported
in standard containers
3. Optimized quality assurance
- The minimized size brings also cost advantages when it comes to the scrapping of blanks
-
Flawless blanks can be used without additional welding or oversizing
4. Precise pitch accuracy
-
The segmented girth gears from SEW-EURODRIVE guarantee the initial pitch accuracy of
ISO 8 (AGMA 9)
- Because of the high pitch accuracy, the vibrations of the girth gears are kept to a minimum
5.
Easy replacement
If a segment is damaged, it can be exchanged without dismantling the whole ring
6. Reduced weight
-
ADI** has an over-average contact fatigue strength due to its cold work hardening properties
-
These properties combined with an appropriate girth gear size enable a compact and lighter
design compared to the traditional solution
-
The low weight is important for the handling and the assembly of the girth gear as well as the
achievable circumferential velocity
7.
Increased service life
With the correct dimensioning, load and lubrication, an ADI** girth gear is nearly wear-free
8.
Shorter delivery time
The small segments allow for fast production and short delivery times
* Larger diameters are possible. Contact SEW-EURODRIVE.
** Austempered ductile iron
Industrial gear units
4.4 Segmented girth gears
NEW:
Segmented girth gears