Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. An intermediate shaft between the powered and driven shafts in a belt drive.
Century Dictionary and Cyclopedia
- n. A shaft driven by a band or gearing running from another opposite and parallel shaft.
Wiktionary
- n. A jackshaft.
GNU Webster's 1913
- n. (Mach.) An intermediate shaft; esp., one which receives motion from a line shaft in a factory and transmits it to a machine.
Etymologies
- counter- + shaft (Wiktionary)
Examples
“Suzuki fine-tuned the R450 for 2009 by adjusting the ECU programming and cam profiles to make the engine perform even better at low - and mid-rpm range and also added a new countershaft for improved gear-shift feel.”
“The countershaft rests in self-adjusting boxes, and has a tight and”
“There is also an overhead countershaft with strap shifting arrangement.”
“The travelling motion is transmitted from the crane-engines by suitable gear and shafts to the travelling wheels, and warping-drums or capstans are fitted on a countershaft on the inner side of each frame, which drums can be driven independently of the travelling wheels for moving trucks into position below the crane as they are required for loading and unloading.”
“A small lathe, with an 8-inch swing, can be obtained at a low cost, provided with a countershaft complete.”
“The first is a spur gearing, connecting the motor to a countershaft placed under the motor.”
“The countershaft is then connected to the two axles of the trolley by chain gearing.”
“These are driven by the motor through the medium of a countershaft, and the power and speed are controlled from the switch board seen at the left of the exhibit, and in Fig. 11.”
“On the same countershaft should be a 5 in. pulley belted to a 15 or 16 in. pulley on the line shaft.”
“To give this speed on the line shaft with a rated speed of 2,000 on the 3 in. pulley of the motor would require a countershaft with a 24 in. pulley belted to the motor.”
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