friction torque


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friction torque

[′frik·shən ‚tȯrk]
(mechanics)
The torque which is produced by frictional forces and opposes rotational motion, such as that associated with journal or sleeve bearings in machines.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(1), (9) Both tools have rotational axes to prevent dancers from using friction when performing turnout, but neither provides the exact static friction torque of the device.
4, b, it is intended to test the hypothesis of constant friction torque accepted in the case of dry friction pairs for the symmetrical rotor; if the assumption is confirmed, it allows for finding the coefficient of sliding friction from the rotation pair, parameter required for the simulation of the asymmetric rotor motion.
Specifications include maximum RPM of 6000, static friction torque range from 0.044 ft.
The speed difference between the synchronous output shaft and the input shaft is eliminated by the friction torque between synchronous ring's inner cone and target ring gear's friction cone to achieve a smooth and fast shift.
where [f.sub.0] is the zero drift error of friction torque, [f.sub.c] is the Coulomb friction coefficient, [f.sub.v] is the viscous friction coefficient, and [f.sub.a] and [f.sub.b] are the experiential friction coefficients.
The static characteristics of the rotation transmission device are volume losses (leakage), mechanical losses (friction torque, breakaway torque), and locking fluid temperature at the outlet of the device.