Cobblestone crusher bearing lubricant selection skills

1, anti-rust performance

The grease used in the bearing must have an anti-rust effect, and the anti-rust agent is preferably insoluble in water. Grease should have good adhesion and form an oil film on the surface of the steel.

2, mechanical stability

Grease becomes soft during machining and causes leakage. In normal operation, grease will be trapped inside the bearing by the bearing housing. If the mechanical stability of the grease is insufficient, during the operation, the structure of the soap of the grease will mechanically disintegrate, causing the grease to be destroyed, thereby losing the lubricating effect.

3, oil seal

Oil seals are necessary barriers to protect bearings and lubricants from external contamination. During the operation of the bearings, no matter whether debris or moisture can penetrate into the bearings to prevent damage.

Proper installation and maintenance is an important factor in the longest service life of the bearing. At the same time, attention must be paid to the cleanliness of the bearings, the correctness of the choice of bearings and the selection of appropriate installation and maintenance tools. In addition, the bearingsmust be protected from contamination and moisture and ensure proper installation and lubrication.

4, mixed grease

Never mix incompatible greases. If two incompatible greases are mixed, the consistency will usually soften and eventually the bearings may be damaged due to the loss of grease. If you do not know which grease the bearing originally used, you must completely remove the old grease inside and outside the bearing before adding new grease.For more information and purchase please visit: https://www.supplyforever.com

How is the bearing vibration generated?

    In general, the rolling bearings in SKF bearings do not generate noise by themselves. The "bearing noise" that is usually felt is in fact the acoustic effect of the SKF bearing directly or indirectly vibrating with the surrounding structure.

    This is why many times noise problems can be considered as vibration problems involving the entire bearing application. Excitation due to the change in the number of rolling elements. When a radial load is applied to a bearing, the number of rolling elements carrying the load will change slightly during operation, ie: 2-3-2-3... This causes a shift in the load direction. The resulting vibration is unavoidable, but can be mitigated by axial preloading and applied to all rolling elements (not suitable for cylindrical roller bearings in SKF bearings).

    When the waviness of the component is closely matched between the bearing ring and the bearing housing or the transmission shaft, the bearing ring may be deformed in cooperation with the shape of the adjacent component. If deformation occurs, vibration may occur during operation. Therefore, it is important to machine the housing and drive shaft to the required tolerances.

    Local damage A small number of bearing raceways and rolling elements may be damaged due to handling or installation errors. In operation, rolling a damaged bearing component produces a specific vibration frequency. Vibration frequency analysis identifies damaged bearing components. Vibration behavior in applications In many applications, the stiffness of the bearing is the same as the stiffness of the surrounding structure. Due to this feature, it is possible to reduce the vibration in the application as long as the bearings (including preload and clearance) are properly selected and their configuration in the application.

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