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单词 plummer block
释义

Definition of plummer block in English:

plummer block

(also plumber block)
noun ˈplʌmə ˌblɒk
Mechanics
  • A cradle for a journal bearing, consisting of a lower part on which sits the shaft or axle in its bearing, and a cap fitting over this, which holds the shaft or axle in place and can be tightened by means of bolts as the surface of the bearing wears away; a pillow block.

Origin

Late 18th century. From a first element of uncertain origin (perhaps a surname) + block.

Definition of plummer block in US English:

plummer block

(also plumber block)
nounˈplʌmə ˌblɒk
Mechanics
  • A cradle for a journal bearing, consisting of a lower part on which sits the shaft or axle in its bearing, and a cap fitting over this, which holds the shaft or axle in place and can be tightened by means of bolts as the surface of the bearing wears away; a pillow block.

Origin

Late 18th century. From a first element of uncertain origin (perhaps a surname) + block.

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更新时间:2024/9/21 19:33:01