Throw-Out Bearing Failure
Vehicles with manual transmissions have a unique set of maintenance issues to consider. The throw-out bearing is one piece of the clutch assembly that can wreak havoc on your transmission if left unchecked. Knowing the signs of impending bearing failure can save you money and ensure your car runs smoothly.
How Throw-Out Bearings Work
A throw-out bearing, also known as a clutch release bearing, is a key component of the mechanism that releases the clutch in a standard vehicle to temporarily disengage the engine from the manual transmission when the driver shifts gears.
When the clutch is engaged, the throw-out bearing moves to the flywheel, where it pushes the pressure plates release levers against the pressure plates spring. This action disconnects the engine from the wheels so that the vehicle can be shifted into a different gear.
Once the clutch pedal is disengaged, the clutch release bearing returns to its starting position and reconnects the engineâ??s power to the wheels through the transmission.
Where Is the Throw-Out Bearing Located?
The throw-out bearing can be found between the clutch fork and the pressure plate fingers in the clutch assembly of the car transmission.
Throw-Out Bearing Failure Symptoms
Unusual Noises When Engaging the Clutch Pedal
When the throw-out bearing begins to wear down, drivers will typically hear grinding or rattling sounds when depressing the clutch pedal. If the sounds then stop when the clutch is released, this is a common indication that the clutch release bearing is in need of replacement.
Clutch Pedal Feels Stiff
The more worn down the release bearing is, the harder it will become to depress the clutch pedal. When the clutch pedal begins to require increased force to engage and feels stiff, this is a sign that the throw-out bearing is in danger of failing.
Clutch Pedal Vibrates
The clutch pedal should engage smoothly when depressed. If there are vibrations when pressing the clutch pedal, this is a sign that the throw-out bearing is in its end stages of useful life.
Gear Shifting Difficulties
When the release bearing is wearing down, it will make it difficult to shift gears when the clutch is engaged. You will notice that the gear shift is harder to move, and you may notice a grinding sound as you are shifting. This means it is time to have some maintenance performed on your vehicle before you canot shift gears at all due to a total clutch failure.
A "Clutch" bearings are equipped with a centering mechanism to prevent damage caused by sudden high speed rotation during transmission of power. In addition, some bearing rings use steel plate presses to reduce weight. Functions required for bearing and clutch release structure The clutch release bearing is used for the part that transmits or cuts off the driving force. When the driving force is cut off, the clutch release bearing is affected by the strong force from the diaphragm spring that rotates at high speed and suddenly starts to rotate. If there is a large gap between the diaphragm spring and the rotation center of the clutch release bearing, the contact surface tends to heat up and wear out, which greatly affects the function of the clutch. In particular, the self-aligning clutch release bearing prevents such abnormal heating and wear. Clutch release bearings, also known as throw-out bearings, are essential components in automotive clutches. They facilitate the disengagement of the clutch by applying pressure to the clutch diaphragm spring, allowing for smooth shifting and engagement of gears.
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