The clutch release bearing generally consists of angular contact ball bearings, bearing seats (or sliders), and their connecting components. If the clutch release lever, lever damper, and guide tube, etc., are included, it constitutes the clutch release system. The main function of the clutch release bearing is to separate the clutch by its axial movement, thereby cutting off the power connection between the car engine and the gearbox or power input shaft, and assisting in completing operations such as starting, stopping, and shifting.
When the clutch is in the engaged state, the power output by the engine crankshaft is transmitted to the gearbox input shaft through the flywheel, pressure plate, and driven plate; when the clutch release bearing moves to the left along the guide pipe under the action of the lever, it can compress the diaphragm spring and separate the flywheel and the pressure plate from the driven plate, thereby cutting off the engine's power transmission to the gearbox.
Reducing vibration, noise, and friction and wear of the motion coupling surface is the main problem faced by the clutch release bearing system, and research on this has led to a series of significant improvements related to the clutch release bearing. Other improvements to the clutch release bearing involve materials, structures, seals, and lubrication of angular contact ball bearings.
Clutch release bearings can be divided into ordinary clutch release bearings and self-aligning clutch release bearings according to whether the angular contact can move radially with respect to the bearing seat, that is, whether they have self-aligning function or not. The angular contact ball bearings in ordinary clutch release bearings have a rigid connection with their bearing seats. According to whether the inner ring or outer ring of the angular contact ball bearing is rigidly connected to the bearing seat, there are differences between outer ring rotation and inner ring rotation in clutch release bearings. The angular contact ball bearings in self-aligning clutch release bearings have a flexible connection with their bearing seats, and the angular contact ball bearings can move radially with respect to the bearing seat, thereby achieving concentric rotation with the clutch.
Automotive clutch release bearings are an important part of the car. If there is a malfunction due to poor maintenance, it will not only cause economic losses but also require a lot of time to disassemble and repair. Therefore, finding the reason for the failure of the clutch release bearing, and reasonable maintenance during use is of great significance to extend the service life of the clutch release bearing, improve labor productivity, and obtain better economic benefits. Precautions for using the clutch release bearing:
Follow the operating procedures to avoid the half-engagement and half-separation of the clutch and reduce the frequency of clutch use.
Pay attention to maintenance, immerse the butter thoroughly with steam boiling method, and ensure sufficient lubricant.
Pay attention to adjusting the clutch release lever to ensure that the elastic force of the return spring meets the regulations.
Adjust the free travel so that it meets the requirements (30-40mm) to avoid excessive or insufficient free travel.
Minimize the number of engagements and separations to reduce the impact load.
Step on the clutch lightly and easily to make it engage and separate smoothly.
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