{"id":903,"date":"2026-02-19T17:13:49","date_gmt":"2026-02-19T08:13:49","guid":{"rendered":"https:\/\/www2.exedy-aftermarket.com\/new\/wordpress\/?post_type=knowledge&#038;p=903"},"modified":"2026-02-19T17:41:02","modified_gmt":"2026-02-19T08:41:02","slug":"%e3%82%a8%e3%82%af%e3%82%bb%e3%83%87%e3%82%a3%e7%94%a8%e8%aa%9e%e9%9b%86","status":"publish","type":"knowledge","link":"https:\/\/www2.exedy-aftermarket.com\/en\/knowledge\/%e3%82%a8%e3%82%af%e3%82%bb%e3%83%87%e3%82%a3%e7%94%a8%e8%aa%9e%e9%9b%86\/","title":{"rendered":"Exedy Glossary"},"content":{"rendered":"\n<figure class=\"wp-block-table\"><table><thead><tr><th>Word<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Manual Clutch<\/td><td>Located between the engine and the transmission. The manual clutch transmits rotation from the engine to the drivetrain. Made up of a clutch cover and clutch disc.<\/td><\/tr><tr><td>Clutch Cover<\/td><td>The clutch cover is attached to the flywheel and serves to engage and disengage power via clutch disc.<\/td><\/tr><tr><td>Clutch Disc<\/td><td>The clutch disc is pressed by the clutch cover against the flywheel to transmit rotation.<\/td><\/tr><tr><td>Solid Disc<\/td><td>A clutch disc without torsion springs.<\/td><\/tr><tr><td>Normal Disc<\/td><td>A clutch disc with standard function, for general application.<\/td><\/tr><tr><td>Silent Disc<\/td><td>This product features additional functions to absorb noise and drive-related vibration in order to improve quietness when operating the engine.<\/td><\/tr><tr><td>Organic<\/td><td>A clutch disc made of organic friction materials.<\/td><\/tr><tr><td>Metallic<\/td><td>A clutch disc made of metallic friction materials.<\/td><\/tr><tr><td>Combination Disc<\/td><td>A clutch disc made of a combination of organic and metallic friction materials.<\/td><\/tr><tr><td>WAD<\/td><td>Abbreviation of Wide Angle Damper. A clutch disc equipped with high performance damping and enhanced vibration reduction characteristics to handle engines with high RPM variation, such as diesel and direct fuel injection engines.<\/td><\/tr><tr><td>Diaphragm Spring<\/td><td>The daiphragm spring is located in the clutch cover structure.<\/td><\/tr><tr><td>Pull Type Clutch<\/td><td>A clutch cover designed for high performance vehicles.<\/td><\/tr><tr><td>Peak Cut Clutch<\/td><td>Clutch pedal pressure remains even during clutch disc wear. Clutch pedal pressure normally gets heavier after wear of the clutch disc.<\/td><\/tr><tr><td>Unity Disc<\/td><td><br>A clutch disc designed with unified parts to reduce the number of components, for cost efficiency.<\/td><\/tr><tr><td>Clutch Set<\/td><td>The clutch set is made of the clutch disc and clutch cover.<\/td><\/tr><tr><td>Snap-in Release Bearing<\/td><td>The snap-in release bearing is an EXEDY patent for the pull type cover release bearing. The bearing can be taken out with a screwdriver.<\/td><\/tr><tr><td>Support parts<\/td><td>The parts fitted to the clutch cover to make the installation easier. There are 3 different types. (set bolts, set wire and set plate) All of them are painted.<\/td><\/tr><tr><td>Clutch Cover Type<\/td><td><a href=\"https:\/\/www2.exedy-aftermarket.com\/new\/wordpress\/en\/knowledge\/clutch-cover-type-description\/\">Follow this link<\/a><\/td><\/tr><tr><td>Size description<\/td><td><a href=\"https:\/\/www2.exedy-aftermarket.com\/new\/wordpress\/en\/knowledge\/size-measurement\/\">Follow this link<\/a><\/td><\/tr><tr><td>Dual Overhead Cam<\/td><td>An engine with a pair of overhead camshafts, one to operate the intake valves and the other to operate the exhaust valves.<\/td><\/tr><tr><td>Electronic Fuel Injection<\/td><td>A fuel system where the fuel injection is controlled electronically.<\/td><\/tr><tr><td>Turbo<\/td><td>A turbine that is turned by exhaust gases from the engine.<\/td><\/tr><tr><td>Supercharger<\/td><td>A mechanism for forcing air into an internal-combustion engine.<\/td><\/tr><tr><td>Twin Cam<\/td><td>An engine with a pair of overhead camshafts, one to operate the intake valves and the other to operate the exhaust valves<\/td><\/tr><tr><td>Number of Gears<\/td><td><br>Referring to the number of forward gears in the transmission.<\/td><\/tr><tr><td>Diesel<\/td><td>And engine that is operated by diesel fuel.<\/td><\/tr><tr><td>Twin Cam Turbo<\/td><td>An engine with twin cam and a turbo charger.<\/td><\/tr><tr><td>Twin Turbo<\/td><td>An engine equipped with two turbo chargers.<\/td><\/tr><tr><td>Liquefied Petroleum Gas<\/td><td>Is a mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles.<\/td><\/tr><tr><td>Double Cab<\/td><td>A truck with a double sized cab.<\/td><\/tr><tr><td>PTO<\/td><td>Abbreviation of Power Take Off. The mechanism is powered by the transmission.<\/td><\/tr><tr><td>NAVI5<\/td><td>Automated manual transmission using dry type clutch system developped world wide by Isuzu in 1983.<\/td><\/tr><tr><td>Single Cab<\/td><td>A truck with a single sized cab.<\/td><\/tr><tr><td>Retarder<\/td><td>Sub-brake system equipped on commercial vehicles and industrial vehicles.<\/td><\/tr><tr><td>Smoother<\/td><td>The name of the semi and full automatic transmission for the commercial vehicles of Isuzu.<\/td><\/tr><tr><td>FF shift<\/td><td>The mechanism of clutch operation with hydraulic pressure or compressed air by electric signal.<br>(Hino model)<\/td><\/tr><tr><td>Dry Type Clutch<\/td><td>A clutch system operated without a liquid cooling agent. Simple structure and easy maintenace.<\/td><\/tr><tr><td>Wet Type Clutch<\/td><td>This is a maintenance-free clutch with liquid cooling agent.<\/td><\/tr><tr><td>Unification<\/td><td>The unification of older part numbers to new part number, to reduce the number of stocks.<\/td><\/tr><tr><td>Function of the clutch<\/td><td>The function of the clutch 1. engage\/disengage the power 2. Reduce the noise and vibration<br>3. The fuse of the drivetrain.<\/td><\/tr><tr><td>disregard of catalog<\/td><td>To disregard the reference of the catalog. Serious damage\/injury may occur.<\/td><\/tr><tr><td>Fa<\/td><td>The facing is the friction area of the clutch disc.<\/td><\/tr><tr><td>CNP<\/td><td><br>The cushioning plate is located between the two friction facings and serves as a cushion when the clutch is engauged to prevent shock to the drivetrain.<\/td><\/tr><tr><td>RP<\/td><td>Abbreviation of the retaining plate. Retaining plate houses the torsion springs within the damper.<\/td><\/tr><tr><td>SH<\/td><td>Abbreviation of the splined hub<\/td><\/tr><tr><td>PP<\/td><td><br>Abbreviation of the pressure plate<\/td><\/tr><tr><td>DSP<\/td><td>Abbreviation of diaphragm spring<\/td><\/tr><tr><td>DCT<\/td><td>A dual clutch transmission (DCT) is a semi-automatic transmission with separate clutches for odd and even gears. The outer clutch drives the odd numbered gears, while the inner clutch drives the even numbered gears.<\/td><\/tr><tr><td>EED<\/td><td>Abbreviation of the EXEDY Express Delivery<\/td><\/tr><tr><td>Sports Clutch<\/td><td>A clutch assembly intended for the use of high performance.<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"cate_kl":[65],"class_list":["post-903","knowledge","type-knowledge","status-publish","hentry","cate_kl-material"],"acf":[],"_links":{"self":[{"href":"https:\/\/www2.exedy-aftermarket.com\/en\/wp-json\/wp\/v2\/knowledge\/903","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www2.exedy-aftermarket.com\/en\/wp-json\/wp\/v2\/knowledge"}],"about":[{"href":"https:\/\/www2.exedy-aftermarket.com\/en\/wp-json\/wp\/v2\/types\/knowledge"}],"wp:attachment":[{"href":"https:\/\/www2.exedy-aftermarket.com\/en\/wp-json\/wp\/v2\/media?parent=903"}],"wp:term":[{"taxonomy":"cate_kl","embeddable":true,"href":"https:\/\/www2.exedy-aftermarket.com\/en\/wp-json\/wp\/v2\/cate_kl?post=903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}