Clutch release bearing the cause of damage

1. Clutch bearings working conditions and stress
Bearings in use process by axial load, impact load and high speed rotating centrifugal force when the role of the radial, in addition, the fork lift and the separation of leverage against the force is not in the same line, also form torsional moment. Clutch release bearing bad working conditions, intermittent rotation and heirs to the high speed friction, high temperature, lubrication condition is poor, no cooling conditions.

2. Clutch release bearing the cause of damage
Clutch release bearing damage and the driver's operation and maintenance, adjustment has the very big relations, the damage reason we have the following kinds:

1) the temperature too high cause overheating
Many drivers in turn or slows down, often half a step the clutch, some GuaDang back foot in the clutch; Some vehicles free stroke is too large, makes the clutch is not complete, engagement at half half separated, the dry friction caused by this state and a significant amount of heat transfer to bearings, bearing heated reaches a certain temperature, butter melts or dilute flow, make bearings temperature further improved, and when the proper temperature is reached will burn out.

2) lack of lubricating oil and wear
Clutch bearings with butter lubrication, butter to join the method to have two kinds, bearings for 360111, it should be in the maintenance or dismantle the transmission, will open the back cover in the bearing grease, then to put together the back cover can; For 788611 K bearings, it may bring down the melting down on the grease at it, take out after cooling, can achieve the purpose of lubrication. In practical work to the driver is blind to this point, lead to clutch release bearing short of oil. In no lubrication or less lubrication cases of bearings is often wear is the amount of wear after lubrication several times to dozens of times. Wear increase, the temperature will also have great improvement, so are more likely to damage.

3) free trip is too small or too much by The Times
According to the requirements, general clutch bearings and separation of the gap between the leverage of 2.5 mm relatively appropriate, reflected in the clutch free trip, 30-40 mm, free trip is too small or no free trip, will make the separation levers and bearings is often engage state. According to the principle of fatigue damage, bearing the longer working hours, the more serious the damage; By the more, the more easily bearings fatigue damage. And the work time to grow more, bearing and the higher the temperature, the more likely to damage and reduce the separation of the service life of the bearings.

4) in addition to the above three reasons outside, separation lever adjustment whether level off, the separation of the return of the bearing spring are good, on the separation of the bearing damage also has very big effect.




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