Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 110
d the 322 HAWKINS ELECTRICITY strong magnetic side pull on the core when the latter is,slightly, nearer one pole piece than the other. Owes. What is the object of providing shoulders on theshaft as in fig. 349? Ans. They serve to keep the armature in the proper positionwith respect to the bearings.… … KEYWAV KEYWAY KEYWAY Fig. 349.—Typical shaft for an armature. The illustration shows the keyways for pulley,armature and commutator. In the smaller sizes, there is usually a flange at A, andthreads at B and C for retaining nuts. The shaft is subject also to bending by the weight of the armature,by…
Electrical engineering
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