. Canadian Machinery. ounted as out-lined above. Typical Ball Bearing Applications While twenty years ago ball bearingswere generally known only in bicycles,today they are used in almost every in-dustry. Indeed many machines, or de-velopments in machines, owe their veryexistence to the modern ball bearings,some excellent examples of this being theDumore precision grinder, the eleventhousand wood-working shaper,the Sperry gyroscopic compass and theSperry gyroscopic stabilizer for aero-planes. The rotor runs at 8,600 onthe Sperry compass, and at 14,000 the stabilizer. As th
. Canadian Machinery. ounted as out-lined above. Typical Ball Bearing Applications While twenty years ago ball bearingswere generally known only in bicycles,today they are used in almost every in-dustry. Indeed many machines, or de-velopments in machines, owe their veryexistence to the modern ball bearings,some excellent examples of this being theDumore precision grinder, the eleventhousand wood-working shaper,the Sperry gyroscopic compass and theSperry gyroscopic stabilizer for aero-planes. The rotor runs at 8,600 onthe Sperry compass, and at 14,000 the stabilizer. As the field of ballbearing applications is now so broad and the number of motors shows that fewer repairs are re- proven successes so great, it is impos-sible to give even a summary of themin an article of this nature. It will besufficient, therefore, to select a few ex- quired, longer periods can be allowedbetween motor inspections, and the wholecost of maintenance is considerably de-creased. The extent to which this ap-. FIG. 18~W0RM DRIVE EQUIPPED WITH BALL BEARINGS. amples at random, not because they pos-sess greater merit than others, but be-cause they happen to come first to all types of electric motorshave been ball bearing equipped, and inno case have they failed to show a dis-tinct advantage over the old {)lain bear-ings. An analysis of the records of such
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Keywords: ., bookcentury1900, bookdecade1910, bookidcanadianmachiner2511torou
