TRW JBJ751 Монтажно-направляющее соединение

Sworznie wahaczy TRW JBJ751

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   A ball bearing is a connecting part that allows the components attached to it to rotate in several planes. Usually one part is fixed rigidly, but the second part is fixed movably. There can be anywhere from 1 to 4 ball bearings.

   It's an integral part that does the hard work under high loads. Now ball bearings have stepped forward in their technology, so they can run for hundreds of thousands of kilometers without replacement.

Ball bearing arrangement:

   A metal rod or "finger" with a ball tip on one side and a thread on the other. The dust cap is a rubber elastic element that makes the rod work hermetically. Metal cylindrical body - narrow hole on one side, wide hole on the other Polymeric liner - usually consisting of two parts: the bottom (cup) and the top (stop). Pressure washer - secures the polymer liner. The flattening of the pressure washer. It's essentially the bottom of the ball bearing.

How it works:

   As you realized the closed "ball" can rotate in either direction, even if it spins. To the cylindrical body is attached a fixed mount, which is installed in the right elements of the suspension - this part is not movable. But the threaded top pin is attached to the moving parts, so they can rotate or turn at all.

   You turn the steering wheel, the effort goes through the steering rack to the knuckle, and you need the pivot joints to make it turn. This is exactly the job that the supports, steering knuckles and support bearings do.

Failure and life:

   The life is directly dependent on the polymer liner inside, if it breaks, the metal pin starts to go and finish off the plastic. Knocks and clicks appear on bumps and turns. The main cause of ball bearing failure is a rupture of the dust cover. As soon as it breaks, sand and dirt immediately get into the ball joint - they act on the polymer inside as an abrasive, and the metal ball part only aggravates the situation, rubbing the sand and dirt particles with force.

   Thus, the polymer insert wears out, the "pin" starts to go up and down and in other directions, i.e. there is a backlash, which just "kills" the support from the inside. Just the knocks and squeaks characterize the wear of the inner polymer part.

   W jednym modelu auta, mogą występować różne warianty części. W przypadku niepewności o właściwy dobór części, zalecana jest weryfikacja wg numeru VIN.