the clutch pedal force will be transmitted to the clutch release bearings

When the clutch release bearing work, the clutch pedal force will be transmitted to the clutch release bearings. Clutch bearing clutch pressure plate toward the center,  fatigue testing machine so that the pressure plate is pushed away from the clutch, the clutch plate and flywheel separation. When the clutch pedal is
released, the pressure plate before the spring pressure will push the
pressure plate, the pressure radial clearance to the clutch plate, clutch plate and clutch
bearing separation, and the completion of a work cycle.

 Repair personnel in practical work release bearing lubrication problem is easy to ignore, and do not release bearing lubrication during installation, causing the clutch release roughness measuring instrument  bearing starvation. No lubrication or less the amount of wear of bearings lubricated separate release bearing lubrication is often several times to several times. Wear increases, the temperature will increase greatly, so more damage to the release bearing. So in the repair process, the installation of the clutch release bearing lubrication to check, timely lubrication maintenance.