Dam gates Segment gates for dam bar- rages are the home of large-size SKF maintenance-freespherical plain bearings manufacturer. Thereference list is long – over 3 000 applications being includedto date.As main bearings, they compensatefor non-alignment of their seatings, alterations in length as a result of tem- perature changes, elastic deformation of the dam gates as well as changes caused by settling of the foundations. They cope with the heavy radial loads caused by the water pressure as well as axial loads arising from the inclined position of the support arms.SKF bearings not only serve as heav-ily loaded bearings under static condi- tions; they also serve in the frequently operated linkage attachments of the lifting and plunger cylinders as well as the flaps.

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Dam gate The purpose of the bearing arrange- ment of a truck twin-axle support is to provideeven load distribution between the two axles on bumpy roads or off- highway. This means that the arrange- ment is subjected to heavy loads and, depending on the road/off-highway conditions, heavy shock loadsand highly frequent alignment movements. The bearings are hidden behind the tyres and are difficult to access. It is evident that anysudden bearing dam-age, calling for immediate on site re- pairs need to be avoided.A pair of SKF angular contact spher-ical plain bearings mounted back-to- back make surethat such emergen- cies will not occur. They can withstand all the rigours of truck duty, are simple to install and also to maintain.
Truck twin-axle support 14 Truck twin-axle supports