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Apr . 30, 2024 12:20 Back to list

What are the causes of clutch bearing failure? One Way Bearing


(1) The working temperature is too high to cause overheating. When turning or decelerating, many drivers often step on the clutch halfway, and some put their feet on the clutch pedal after shifting the gear; some vehicles adjust the free stroke too much, so that the clutch is not completely disengaged, and it is in a semi-engaged and semi-disengaged state.

 

CKZF-B Series Flywheel Backstop Clutch

 

The state causes sliding friction between the friction disc and the flywheel, and a large amount of heat is transferred to the release bearing. The bearing is heated to a certain temperature, and the grease melts or flows, which further increases the temperature of the release bearing. When the temperature reaches a certain level, it will burn. Bad release bearing.

(2) Wear due to lack of grease. The clutch release bearing is lubricated with grease. In actual work, the maintenance personnel tends to ignore the lubrication problem of the release bearing and do not add grease to the release bearing during installation, resulting in a lack of oil in the clutch release bearing. The wear amount of non-lubricated or less lubricated release bearings are often several to dozens of times that of lubricated release bearings. The wear increases and the temperature will also increase greatly, which is more prone to damage to the release bearing. Therefore, during the repair process, the lubrication of the release bearing should be checked when the clutch is installed, and grease should be added in time for maintenance.

(3) The free stroke is too small or the load times are too many. According to the requirements, the clearance between the clutch release bearing and the release lever is generally 2.5mm, and the free stroke reflected on the clutch pedal is 30-40mm. If the free stroke is too small or there is no free stroke at all, the release lever will be separated from the Bearings are always engaged. According to the principle of fatigue failure, the longer the bearing works, the more serious the damage; And the longer the working time, the higher the temperature of the bearing, the easier it is to burn and reduce the service life of the release bearing.

(4) Whether the release lever is adjusted smoothly, whether the release fork is deformed, and whether the return spring of the release bearing is good, also has a great influence on the damage of the release bearing. The uneven separation adjustment, the deformation of the release fork, and the failure of the release bearing spring to return will cause the release bearing to be resisted during the clutch operation so that the release bearing is always in working state service of life.

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