. Official proceedings . ournalsize axle arc. bore 5 in.; outside diameter Ll^j in.; and widthof cone at its contact with the axle 6% in. The rated capacityof one bearing is 28,900 11 >. vertical and 23,275 lb. thrust 750 which with 36 in. wheels corresponds to SO milesper hour train speed. The capacity of a 5 in. by 9 in. journalsize axle is 32,000 lb., while the two hearings used per axle 86 have an actual vertical capacity of 57,800 lb. at 80 miles perhour and 69,400 lb. at 500 or 53 miles per hour. In assembly the cone is mounted on the axle under aheavy press tit
. Official proceedings . ournalsize axle arc. bore 5 in.; outside diameter Ll^j in.; and widthof cone at its contact with the axle 6% in. The rated capacityof one bearing is 28,900 11 >. vertical and 23,275 lb. thrust 750 which with 36 in. wheels corresponds to SO milesper hour train speed. The capacity of a 5 in. by 9 in. journalsize axle is 32,000 lb., while the two hearings used per axle 86 have an actual vertical capacity of 57,800 lb. at 80 miles perhour and 69,400 lb. at 500 or 53 miles per hour. In assembly the cone is mounted on the axle under aheavy press tit of from 20 to 30 tons. This will insure thecone remaining tight and prevent wear on the axle by creep-ing. The cups are given a press tit in the housing of 3 to 5tons insuring against rotation or creeping in the housing. The journal box proper consists of two housings, calledthe inside and outside housings, and the cover. For this rea-son it is generally called a double box or self-aligning applica- vERTICAL HALF SECTION. HORIZONTAL HALF SECTION Fig. 6—Hour-glass type of tapered roller bearing journal applicationfor use in existing plain bearing truck pedestal. This applicationwill interchange with plain bearings. tion. The inside housing which contains the bearing is crownedat the top and bottom ; the crown having about the same radiusas the plain bearing box wedge, which gives the applicationthe feature of self-alignment. When the top is worn the hous-ing may be inverted and a new aligning surface will thus bebrought in contact with the outside housing. One of the most important features of the design is thedegree of flexibility possible in the application. The enclosure or lubricant retaining method is shown veryplainly in the X-ray view. A pressed steel oil flinger is pressedon and welded to the cone removal sleeve. All oil which is 87 thrown over the- dinger is drained to the bottom of the boxbv the groove on the inside of the box enclosure. L< .v- S-. 2
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Keywords: ., bookauthorrailwayc, bookcentury1900, bookdecade1900, bookyear1901
