What Components Are Included in a Transmission Assembly?
2 Answers
Transmission assembly includes the entire transmission case and the fluids inside, but does not include the drive shaft. The transmission assembly is essentially the transmission itself. 1. Transmission: The transmission primarily refers to the vehicle's gearbox, which is categorized into manual and automatic types. A manual transmission mainly consists of gears and shafts, achieving speed and torque variation through different gear combinations. An automatic transmission (AT), on the other hand, is composed of a torque converter, planetary gears, a hydraulic torque variation system, and a hydraulic control system, achieving speed and torque variation via hydraulic transmission and gear combinations. 2. Function: The transmission is a crucial component in a vehicle, capable of altering the transmission ratio and expanding the torque and speed effects on the drive wheels. With advancements in modern technology, transmissions have undergone upgrades, evolving from the initial manual transmissions to today's continuously variable transmissions (CVTs), and from non-synchronized to synchronized systems, making operation increasingly convenient.
The transmission assembly is indeed a complete set of precision mechanical structures with many critical components. The clutch mechanism is the core part, responsible for connecting and disconnecting power transmission. Next comes the gear set, including main shaft and countershaft gears, used for different speed ratios. The synchronizer is crucial, ensuring smooth gear shifting and preventing gear grinding. Bearings are ubiquitous, supporting all rotating parts, while the oil pump ensures lubricant circulation to protect components. For automatic transmissions, a torque converter is added to handle the starting transition, and the valve body with electronic control modules enables precise regulation. The entire system also relies on seals and housing, with these wear-prone parts commonly replaced during maintenance. Regular servicing can extend its lifespan by at least five to ten years. If you notice jerking or unusual noises while driving, there's an 80% chance internal components are failing—address it promptly to avoid complete transmission failure.
