A hydraulic throwout bearing, also known as a hydraulic release bearing, is a component used in some automotive clutch systems. Its main function is to engage and disengage the clutch by applying hydraulic pressure from the clutch master cylinder. Literally, we can try to explain it by splitting it into two parts: "hydraulic" and "throwout bearing".

Hydraulic part (Hydraulic)

Hydraulic technology is a kind of technology that uses liquid (usually oil or water) as the working medium, and transmits power or realises some kind of control through the pressure energy of the liquid. In the field of bearings, hydraulic technology can be used to improve the performance of bearings, such as reducing friction, wear and vibration, increasing load carrying capacity and stability.

Throwout Bearing

The throwout bearing, also known as the clutch release bearing, is an important part of the clutch system. It is usually installed between the clutch pressure plate and the flywheel, and is used to reduce friction and wear when the clutch is engaged and disengaged, and to help the clutch work smoothly. The release bearing needs to withstand high rotational speeds and certain loads, so its performance has a significant impact on the overall performance of the clutch.

The follwing is the working principle of Hydraulic throwout bearing.

1. Hydraulic Operation:Unlike conventional mechanical throwout bearings which are driven by a mechanical linkage, the hydraulic throwout bearing uses hydraulic fluid pressure to operate. It is connected to the clutch release fork and moves it when pressure is applied. 2. Integration: It is normally connected to the clutch release fork and moves it when pressure is applied.

2. Integration: It is usually integrated into the clutch release system where it replaces the traditional clutch release bearing and fork setup.

3. Advantage:Hydraulic throwout bearings provide smoother clutch engagement and disengagement than mechanical systems. They are also less prone to wear and can be more compact, potentially reducing the complexity of clutch assembly.

4. Applications:These bearings are typically used in high performance vehicles, heavy duty trucks and some modern passenger cars where smooth and efficient clutch operation is required.

Hydraulic throwout bearing it may have the following features:

Hydraulic Lubrication:Using hydraulic principle to provide continuous lubrication to the release bearing, reducing friction and wear, and improving service life.

Hydraulic support: Hydraulic pressure is used to support or assist in supporting the release bearing, enhancing its load carrying capacity and stability.

Hydraulic Control: In some advanced applications, this may also involve controlling the separation and engagement process of the release bearing through a hydraulic system to achieve more precise control and higher performance.

Overall, hydraulic throwout bearings are an important part of modern clutch systems; the throwout bearing is hydraulically actuated, meaning it is controlled by pressurised hydraulic fluid. When the clutch engages, it usually disengages when the vehicle slows down or downshifts to allow the torque converter to act as a fluid coupling again, smoothing out transitions between gears and providing a temporary cushion of energy storage.

Over time, throwout bearings can wear out, and if they fail, it is important to repair and replace the throwout bearings according to the vehicle manufacturer's recommendations to maintain optimum transmission performance.

Hydraulic throwout bearing application areas

Hydraulic throwout bearings have been widely used in various high-speed rotating equipments, such as wind turbines, machine tools, cranes, railways, oil drilling rigs and so on, due to their unique design and superior performance. In addition, they are also widely used in automotive engines, generators, turbines and fans.

Summary

Hydraulic separation bearing is a device that uses liquid pressure to realise bearing separation and combination, which has significant advantages such as reducing friction loss, lowering noise and improving bearing life. Its working principle is simple and efficient, through the role of liquid pressure to achieve bearing separation and support. With the continuous development of industrial technology, hydraulic separation bearings will be applied and promoted in more fields.