Why a Clutch Can Slip, Then Grip

A clutch can transmit torque while its sides turn at different speeds, then hold them together without sliding. Follow a push-type dry diaphragm clutch through its flywheel, friction disc, release spring and an illustrative power balance. Original explanatory models: sections removed, clearances exaggerated and rotation slowed. The numerical examples use chosen values, not measurements or specifications for the filmed vehicles. Thermal graphics are qualitative; measured evidence and simulation are distinguished. CHAPTERS 0:00 A connection that can slip 0:49 Two faces on one driven disc 1:40 The spring is also a lever 2:29 Friction does not require sliding 3:16 Capacity is not the actual torque 4:23 Slip divides the power 5:15 What happens as speeds meet 6:09 Heat is measured with instruments 7:05 The release system has another job 8:05 Three states, one mechanism PRIMARY SCIENCE AND TECHNICAL SOURCES Diaphragm spring device in a clutch (US4944380A): https://patents.google.com/patent/US4... Diaphragm spring clutch (US5129499A): https://patents.google.com/patent/US5... Meng & Xi (2021), Temperature Distribution for Dry-Clutches: https://doi.org/10.3390/machines9090185 OpenStax University Physics1, Friction: https://openstax.org/books/university... OpenStax University Physics1, Work and Power for Rotational Motion: https://openstax.org/books/university... ZF/SACHS, Clutches and hydraulic release systems: https://aftermarket.zf.com/us/afterma... ZF/SACHS, Clutch does not disengage: https://aftermarket.zf.com/en/afterma... ZF/SACHS, Clutch slipping: https://aftermarket.zf.com/en/afterma... MOVING FOOTAGE CREDITS Ricky Esquivel / Pexels — Shifting Gears of a Car, video4707185 https://www.pexels.com/video/shifting... Carson James Argenna / Pexels — Stick Shift Jeep, video17193158 https://www.pexels.com/video/stick-sh... Free commercial edited use under the Pexels License: https://www.pexels.com/license/ Source sound omitted. Stock camera views show visible controls, not the hidden clutch state or a diagnosis. Original cutaways, animation, diagrams, illustrative calculations, script and editing: Matter Made Clear. English subtitles supplied.