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純正＆OEM自動車部品卸売
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ドライブシャフト(Drive Shaft)
ドライブシャフトには、エンジンで発生させた駆動力を車輪に伝える役割があります。シャフト部分は大きく3つの部位に分けられ、タイヤ側から「アウタージョイント」・「ドライブシャフト」・「インナージョイント」の順で構成されています。
ちなみにFR車や4WD車ではドライブシャフトに加えて、前後の方向に「プロペラシャフト」というパーツも取り付けられています。距離の離れたミッションからディファレンシャルギア（デフ）に駆動力を伝える機能があります。
The drive shaft (also called propeller shaft or prop shaft) is a component of the drive train in a vehicle, with the purpose of delivering torque from the transmission to the differential, which then transmits this torque to the wheels in order to move the vehicle.
The drive shaft is primarily used to transfer torque between components that are separated by a distance, since different components must be in different locations in the vehicle.
A front-engine rear-wheel drive car must have a long drive shaft connecting the rear axle to the transmission since these parts are on opposite sides of the car.
Drive shafts are used differently in different vehicles, varying greatly in cars with distinct configurations for front-wheel drive, four-wheel drive, and the previously mentioned front-engine rear-wheel drive. Other vehicles also use drive shafts, like motorcycles, locomotives, and marine vessels. Below is the drive shaft configuration for a common front-engine rear-wheel drive vehicle (some cars have the transmission at the back).
Genuine Automatic transmission fluid
純正オートフルード
Automatic transmission fluid (ATF) is a kind of transmission fluid used in vehicles with self-shifting or automatic transmissions.
It is typically coloured red or green to distinguish it from motor oil and other fluids in the vehicle.
The fluid is optimized for the special requirements of a transmission, such as valve operation, brake band friction, and the torque converter, as well as gear lubrication.
ATF is also used as a hydraulic fluid in some power-assisted steering systems, as a lubricant in some 4WD transfer cases, and in some modern manual transmissions.
点火プラグ
(Spark Plug)
スパークプラグの種類
スパークプラグの耐久性は先端に使用している電極の材質によって異なります。
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①一般プラグ：スパークさせるための電極にニッケル合金を使用、レジスタープラグといわれる
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②白金プラグ：スパークさせるための電極に白金合金を使用、耐久性に優れている
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③イリジウムプラグ：スパークさせるための電極にイリジウムを使用、耐久性に優れている他、白金よりも電極を細く製造することができ、スパーク性能も高い
A spark plug (sometimes, in British English, a sparking plug, and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine.
A spark plug has a metal threaded shell, electrically isolated from a central electrode by a ceramic insulator. The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of an ignition coil or magneto. The spark plug's metal shell is screwed into the engine's cylinder head and thus electrically grounded.
The central electrode protrudes through the porcelain insulator into the combustion chamber, forming one or more spark gaps between the inner end of the central electrode and usually one or more protuberances or structures attached to the inner end of the threaded shell and designated the side, earth, or ground electrode(s).