Democratic Sentinel, Volume 21, Number 39, Rensselaer, Jasper County, 24 September 1897 — Ball Bearings. [ARTICLE]

Ball Bearings.

It has been suggested that economy of operation <rf street railroads would be subserved by placing the wheels on ball bearings, and experiment has shown that the starting pull required on a car so equipped is very much less than on other cars. It seems to be only a question whether the cost of Introduction and maintenance of ball bearings is not greater tlian the cost of the energy that would be saved by their use. If it Is not. we may look for far greater station economy in the near future.