Many bearings need regular maintenance, so 3102-2201025 Russian universal joint cross naturally needs maintenance.

Good lubrication can reduce the wear of the universal joint and prevent early damage to the cross shaft and needle roller. The maintenance specification stipulates that the needle roller bearings of the cross shaft of the wrecker should use gear oil. Grease is a structured dispersion system formed by a thickening agent and base oil. In some cases, its base oil is automatically separated from the system, and the oil film does not exist, and the base oil is formed after separation. The soap does not have a lubricating effect. At the same time, the grease is divided into oil, or the harder soap is formed after evaporation, so that during maintenance operations, the oil injected into the needle cannot enter the middle of the needle, but is squeezed out from the safety valve. The oil in the bearing is the first Soap that has been injected once and has deteriorated. Therefore, the lubrication of the automobile cross shaft universal joint should be filled with gear oil.

The same is true for the 5-7126X 6H2577 universal joint .