FB-2049 Drive Shaft CV joint boot OEM 04438-12020 04437-17020 for COROLLA

Description

The ball cage sleeve is broken will lead to dust into the ball cage, accelerate the wear of the universal joint, the universal joint can move to all angles, the need for lubricating oil lubrication, otherwise there will be wear, the lubrication material used in the universal joint is grease, maintenance-free does not need to be replaced. The role of the ball cage sleeve is to wrap these greases, not to let the grease flow outside, and always stay inside the ball cage.

Ball cage sleeve is rubber, if it is scratched by external force will be damaged, natural aging will also cause damage, after damage, with the rotation of the ball cage, the internal grease will cause leakage. If the grease in the cage is insufficient, it will lead to excessive wear of the cage, causing damage, and maintenance requires replacement of the cage.

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