Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 98
hang loosely on the shaft. The bearing pedes-tals are hollow under the rings and serve as oil receptacles.As the shaft revolves, the rings also revolve at such a rateas to carry a steady stream of oil up into the slots, therebylubricating the bearing. Recently ball bearings have been applied to… … Fig. 52. with the hardened polished steel balls,d, between them. A removable piece, /,somewhat longer than the diameter of aball, permits of the insertion of theballs, and may be held in place by thescrew s. The rings are of hardened steeland have polished running surfaces. Theinner ring is rigidly…
Electric machinery
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