. The street railway review . t by the attorney general on tlierelations of the city against the Union Traction Co. and the Chicago City respectively. There been many rimiors and newspaper reports as to offerslo liny or to sell Chicago street railway properties, but nothingdefinite has been done. Ball Bearings for Center and Side Bearings. Some of the reasons that Iiave been advanced for advising theuse of anti-friction center and side bearings are that by thus re-ducing the turning moment necessary for revolving a truck aboutits center bearing, the wear of the flanges in passing c
. The street railway review . t by the attorney general on tlierelations of the city against the Union Traction Co. and the Chicago City respectively. There been many rimiors and newspaper reports as to offerslo liny or to sell Chicago street railway properties, but nothingdefinite has been done. Ball Bearings for Center and Side Bearings. Some of the reasons that Iiave been advanced for advising theuse of anti-friction center and side bearings are that by thus re-ducing the turning moment necessary for revolving a truck aboutits center bearing, the wear of the flanges in passing curves andspecial work is reduced and a saving effected in the repaid costof the track work, wheels, trucl^s, car body and equipment. Alessening of the grinding effect of flanges on special work is ofcourse accompanied hy a decrease in the train resistance and a re-duction in the amount of power used. The Baltimore bearings, made by the Baltimore Railway Spe-cialty Co., Baltimore. Md., are designed so that the fraction resist-. CENTER 111C.\RINC. ance attendant to the revolving of the truck about the center bear-ing is small. The use of steel balls in these bearings in place ofsteel rollers is said to increase the life of the bearing, because of thetendency for the rollers to be worn Ifat by the continued slightlateral motion of the car body, relative to the truck. The accom-panying illustrations show the construction of the types of bear-ings designed particularly for electric car use. This type of bear-ing is made for all classes of railway equipments, the general de-sign being the same with the details changed to suit the particulartype of rolling stock. The center bearing as shown consists of two general parts ma-chined lo fit together snugly. In each part at an equal distancefrom the center arc circular ball races in which arc securely keyedgrooved ball race plates, made of a superior quality of steel thathas been subjected to a special treatment lo obtain the requi
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
