Electrical news and engineering . tor, exciter and thrustbearing and the unbalanced downward thrust of the tur-bine, under all starting, running and stopping conditionsmet with in operation. The bearing is capable ofsustaining and operating under a total combined weightplaced on the bearing of approximately ,00(1 lb--. the losses and the cooling conditions. The pressure underoperating conditions is within the standard allowance forthese bearings of 300-400 lbs. per square inch. Copper wat-er cooling coils are installed in the l)earing housing, in orderto cool the lubricating oil, thus red
Electrical news and engineering . tor, exciter and thrustbearing and the unbalanced downward thrust of the tur-bine, under all starting, running and stopping conditionsmet with in operation. The bearing is capable ofsustaining and operating under a total combined weightplaced on the bearing of approximately ,00(1 lb--. the losses and the cooling conditions. The pressure underoperating conditions is within the standard allowance forthese bearings of 300-400 lbs. per square inch. Copper wat-er cooling coils are installed in the l)earing housing, in orderto cool the lubricating oil, thus reducing the amount of cir-culating oil to the minimum required to provide clean oilfor the bearing. These cooling coils were given a hydro-static pressure test. The thrust collar of the bearing is key-ed to the shaft, and transmits the weight of the revolv-ing parts to the rotating ring of the bearing. This rotatingring has a smooth rubbing surface and is so designed thata rapid circulation of nil is maintained. The stationary ring. II llli ^ll 1 Q III,lull ill 1 I III __ _____ --M ^^?-*- ~ T^HMBBMBP— ?— - --- iinY*! I I III ^rm ^WL . ??-lll^ 1 4 and 5 will appe The spring supported thrust bearing as used m thesegenerators, and in other generators built by this companyand other companies, has been developed in an effort toovercome certain difficulties experienced with other typesof bearings. Of the many types in the market, the springsupported thrust is the only one which automatically ad-justs itself, while in actual operation, if there is any loss ofalignment due to settling of the foundations or other caus-es. The rubbing surfaces are in a bath of oil. and the quan-tity of oil circulating from the outside source, depends on rests on springs and to insure flexibility it is made thin andhas a radial saw-cut through one side. The upper surface ofthis ring is the stationary rubbing surface of the springs are provided, so that the stress is onlyabout one-half
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