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A clutch is a mechanical device which provides for the transmission of power and therefore usually motion from one component the driving member to another the driven member. The opposite component of the clutch is the brake. Clutches are used whenever the ability to limit the transmission of power or motion needs to be controlled either in amount or over time.
Friction clutches are by far the most well-known type of clutches.
Various materials have been used for the disc friction facings, including asbestos in the past. Modern clutches typically use an organic compound organic resin with copper wire facing or a ceramic material. A typical coefficient of friction used on a friction disc surface is 0.35 for organic and 0.25 for ceramic. Ceramic materials are typically used in heavy applications such as trucks carrying large loads or racing, though the harder ceramic materials increase flywheel and pressure plate wear.
Friction disk clutches generally are classified as "Push Type" or "Pull Type" depending on the location of the pressure plate fulcrum points. In a pull type clutch, the action of pressing the pedal pulls the release bearing, pulling on the diaphragm spring and disengaging the vehicle drive. The opposite is true with a push type, the release bearing is pushed into the clutch disengaging the vehicle drive. In this instance, the release bearing can be known as a thrust bearing. With over 60 Years Experience in the Clutch Repair and Transmission Repair Industry Sergeant Clutch Discount Clutch Repair Shop is "The Clutch Expert" in San Antonio, Texas. Sergeant Clutch Discount Clutch Repair Shop has the Expert Clutch Knowledge, Clutch Products and High Tech Technology to Service and Repair your Clutch right the first time at the right price. Got Clutch Problems? FREE Clutch Performance Check & FREE Towing Service w/ Clutch Repair
In addition to the dampened disc centres which reduce driveline vibration, pre-dampeners may be used to reduce gear rattle at idle by changing the natural frequency of the disc. These weaker springs are compressed solely by the radial vibrations from an idling engine. They are fully compressed and no longer in use once drive is taken up by the main dampener springs.
Modern clutch development focuses its attention on the simplification of the overall assembly and/or manufacturing method. For example drive straps are now commonly employed to transfer torque as well as lift the pressure plate upon disengagement of vehicle drive. With regards to the manufacture of diaphragm springs, heat treatment is crucial. Laser welding is becoming more common as a method of attaching the drive plate to the disc ring with the laser typically being between 2-3KW and a feed rate 1m/minute.
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Sergeant Clutch Discount Clutch Repair Shop
6557 Walzem Road
(Corner of New World / Yellow & Black Shop)
San Antonio, Texas 78239
Call 24 Hours 210-239-1600 |
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