Wondering Why?

Why Do CV Joints Crack?

Why Do CV Joints Crack?

CV joints or Constant Velocity joints are parts of a drive shaft that attaches the car’s one end to the transmission and the other end to the wheel. It is called in that name because it can maintain a certain speed even though the car is in constant motion and turns the wheels of the car. It is used mostly in front wheel and all wheel drive cars. These CV joints are engineered to have the capacity to bend in any direction while one turns the drive wheel at a constant velocity.

Constant velocity joints are covered of lubricant materials and cannot be exposed to dust as it can wear off sooner than it is expected. The covering is called a rubber boot. If it is protected by a rubber boot, why do constant velocity joints crack?

Constant velocity joints crack when they get damaged from much rigorous trails that the car has encountered and maintenance and check up is not done regularly. If a clicking sound is heard upon turning, it is a sign that the CV joint is wearing out. If the CV joint is not periodically oiled or lubricated, it could also cause a humming sound which may signify wearing out of the bearings.

It’s always safety of the passengers and the driver, which is a primary concern in having a car. One should take care of the parts of the car so as not to result to any accident. As for CV joints, it must be inspected periodically. Keep it in mind that as a car ages, the parts maximum performance will also decrease, just like a person’s body. In instances wherein CV boots are worn out or damaged, replace it at once to prolong the life of the joints, so as not to lead to cracking.


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