Four reasons for damage to NSK bearing plain bearings

The main reasons for the damage of NSK bearing sliding bearings are divided into four aspects:

1. The damage caused by cleaning is 45%;

2. The damage caused by lubrication is 25%;

3, due to the use, installation damage is 15%;

4. Damage due to surface reactions and other aspects is 15%.

There are many kinds of sliding NSK bearings on one engine, and both the bushing and the bearing bush are sliding NSK bearings. In order to ensure the running accuracy of the engine, the running clearance requirements of these sliding NSK bearings are also very high. The cause of the failure of the engine sliding bearing can be attributed to: the critical state of lubrication and any substances that cause damage to the running clearance and damage the oil film.

From this statistical ratio, we can see that the damage caused by cleanliness is the main reason. The work of preventing damage due to poor cleanliness is multifaceted: ensuring the cleanliness of the parts during engine assembly is only one aspect, and on the other hand, the engine is in use. Operators and maintenance personnel must use the correct maintenance inspections in accordance with the regulations, especially those engines that work in the environment of dust and chemical materials for a long time. Measures must be taken to prevent the erosion of dust and chemical gases and ensure the use of engines. life. The surface of the bearing bush and the connecting rod surface of the engine is the softest, with the largest load and the most easy damage. Therefore, the surface damage of the main bearing bush and the connecting rod is analyzed below to avoid the recurrence of the fault after repair.

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

Importance of SKF bearing seals

Seals are extremely important for SKF bearings. If there is a problem with the seal, it will have a great impact on the bearings. For seals with irregular shapes, lack of meat, micro cracks, etc., it is not acceptable.

However, the SKF bearing seal test is an assessment of the assembly and operational reliability of the assembled cylinder seals and their joints. Such as the sealing and connection of the cylinder port, the cylinder piston (between the rod cavity and the rodless cavity), the static seal and the sealing condition.

The pressure of the SKF bearing tightness test is very large, especially for the pressure test of the rodless cavity. If there is no tooling to withstand, the pressure is not applied to the piston rod by the piston without pressure, and only the cylinder port is used. The connection to bear is absolutely impossible. Therefore, usually this type of pressure test is carried out after carefully assembling the cylinder before entering the final assembly stage of the final assembly.

When the frame of the machine to which the cylinder belongs is used to withstand tremendous pressure, it is possible to assemble the cylinder well. The cylinder will be smooth in the final assembly pressure test, which not only saves the tooling that is separately tested after the cylinder is assembled, but also saves the corresponding working hours and shortens the production cycle, which is very useful for the production effect. If the operator does not carefully check and work hard, it will result in a loss.

Therefore, before assembling the SKF bearing, the dimensional accuracy of the relevant part should be carefully checked. The sealing part will be invalid due to the dimensional accuracy of the sealing groove or the roughness of the sealing surface. In addition, in particular, the inspection of the sealing lip does not allow the defective seal to be placed in the product. In addition, the material and hardness of the SKF bearing seals should be checked against the product certificate and the warehouse receipt.

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