Basic-hole System

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Basic-hole System

 

a system of fits for mating plain (unthreaded) parts of machines in which the part with a hole represents the basic part. Thus, for given design dimensions of the mating parts the limiting dimensions of the hole remain constant for all fits. Various types of fits are achieved by changing the limiting dimensions of the shafts. In machine building the basic-hole system is used more widely than the basic-shaft system.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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