Abstract
Abstract A careful study of the difficulties experienced with the types of thrust bearings used in supporting the heavy loads of water wheels and the electric generators driven by them, led the author to design the flexible bearing described in the paper. This bearing consists of a runner of a special grade of cast iron resting on a thin steel ring with a babbitted surface. The babbitted stationary ring, in turn, rests on a large number of short helical springs (ordinarily wound of ½-in. wire, 2 in. in diameter and 1½ in. long) and is held against rotation by dowel pins. A saw cut through one side does away with any tendency to dish with a change in temperature. This construction prevents the possibility of undue pressure at any point and compels each element of the surface to carry its share of the load. Advantages to be derived from the use of such bearings are set forth and figures are given showing a reduction in friction accompanying increased unit pressure. Two designs are described and illustrated.
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