SKF imported bearings with good grease or oil choice

Imported bearings have both friction and sliding friction. Sliding friction is caused by the deviation of the inlet bearing on the surface curve and the deformation of the inlet bearing under load. For example, between the body and the ring, since the ball and the ring are not absolutely rigid bodies, their contact areas always have elastic deformation, which is theoretically point contact or line contact, but in fact the working conditions under load always become surface contact. Therefore, contact points having different diameters have different linear velocities to generate sliding friction. Sliding friction is also created between the body and the retainer as well as the retainer and the inner and outer rings for a variety of different reasons. The sliding friction increases with the increase of speed and load. In order to reduce friction, wear, reduce temperature and noise, prevent the rust of the components of the imported bearings, properly select the lubricant and use reasonable lubrication to properly control the lubricant. Quantity is an important issue to improve the life of imported bearings.

1. The basis of imported bearings for oil or grease:

The advantages of using imported lubricants for imported bearings are:

1) Under certain operating specifications, the starting torque and friction loss of lubricating oil is significantly smaller than that of lubricating grease.

2) Since the lubricating oil takes away the heat in the circulation to cool, the imported bearing can reach a relatively high rotational speed.

3) It can guarantee a relatively high operating temperature.

4) When changing the grease, the relevant connecting parts must be disassembled, and when it is lubricated with oil, there is no such trouble.

5) When the inlet bearing in the reduction gearbox is lubricated with lubricating oil, it is suitable because the oil simultaneously achieves the purpose of lubricating the gear and the imported bearing at the same time.

6) In the imported bearings, the grease is gradually contaminated by the products worn by the product, the abrasives, the products penetrated from the outside through the sealing device and the products that are aging by themselves. If not replaced in time, the imported bearings are accelerated and worn, and when the liquid lubricant is applied It can be filtered to ensure its normal operation.

For more information and purchase please visit: https://www.supplyforever.com

The reason why SKF bearings stimulate the sound

Many users have encountered many problems in the use of SKF bearings. Many problems have arisen in the use of SKF bearings. The general mechanical enterprise staff understand the knowledge of SKF bearings, know how to maintain the bearings, and pay attention to the use of the bearing process. Everything is clear, some newcomers don't understand, just know that simply watching the machine running, today we will introduce a phenomenon that the SKF bearing in the machine will be excited, what is the reason?

1. Vibration behavior in applications

In many applications, the stiffness of an SKF 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 by properly selecting the SKF bearings (including preload and clearance) and their configuration in the application.

2. The waviness of SKF bearing components

In the case of a tight fit between the SKF bearing ring and the SKF bearing housing or the drive shaft, the SKF bearing ring may be deformed in accordance with the shape of the adjacent component. If deformation occurs, vibration may occur during operation. Therefore, it is important to machine the SKF housing and drive shaft to the required tolerances.

3. Excitation caused by the change in the number of loaded rolling elements

When a radial load is applied to a SKF bearing, the number of rolling elements carrying the load changes slightly during operation, ie 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 SKF bearings).

4, local damage

Small parts of SKF bearing raceways and rolling elements may be damaged due to handling or installation errors. In operation, rolling through damaged SKF bearing components produces a specific vibration frequency. Vibration frequency analysis identifies damaged SKF bearing components.

A small way to solve the vibration of SKF bearings:

There are three ways to reduce vibration:

1. Remove critical excitation vibration from the application;

2. suppressing the critical excitation vibration between the excitation component and the resonance component;

For more information and purchase please visit: https://www.supplyforever.com