First, place the mounting surface and installation requirements

     If there is iron KOYO bearings, burrs, dust and other foreign matter to enter, will cylindrical roller bearings produce noise and vibration during operation, even damage the raceways and rolling elements. So, before installing the bearing, you must ensure that the mounting surface and installation environment clean.

     Second, the bearings must be cleaned before installation

     Bearing surface is coated with anti-rust oil, you must use clean gasoline or kerosene carefully cleaned, and then coated with a clean high-quality or high-temperature grease before installation. Cleanliness for cylindrical roller bearing life and vibration noise is very large. But we want to remind you is: do not be fully enclosed bearing cleaning refueling.

     Third, the choice of grease

     KOYO bearings lubricated for the life of the operation, and there is a very important influence, here to brief you choose the general principles of grease. Grease from the base oil, thickener and additives made of different types and different brands of the same type of grease performance varied widely, allowing different rotation limit, the choice is important to note. The performance of the grease base oil, typically in a low viscosity base oil for low temperature, high speed, high viscosity suitable for high temperature, high load. Between the lubrication performance thickeners, grease thickeners water determines the water resistance. In principle, you can not mix greases of different brands, and even the same kind of grease thickener, also due to the different additives adversely affect each other.

     Fourth, add oil

Lubricated bearings, oil coated the better, this is a common misconception. Cylindrical roller bearings      and bearing interior too much oil will cause excessive oil mixing, resulting in extremely high temperatures. KOYO bearings filling quantity of lubricant inside the bearing space to fill 1/2 to 1/3 is appropriate, high-speed should be reduced to 1/3.
Cylindrical roller bearings corrupted state two important causes and solutions

     A fracture:

     Damage state: the so-called fracture is due to the wall on the roller or rollers wheel angle applied to a portion of the local music shocks or excessive loads and a small part of the fracture. This condition is very common one damaged. We try to pay attention in use.

     Cause: The installation took a hit; load is too large; such as the use of bad fall.

     Measures: improving the installation method (using thermal loading, using the appropriate tools folder); corrected loading conditions; bearings installed in place, supported by the wall. This is the first one.

     Second, Stripping:

     Damage states: showing slight wear with the dark side, the dark surface of the inside from the surface to a depth of a number of 5-10m in tiny cracks occur in a wide range and a slight fall (slight peeling).

     Reason: Lubricants inappropriate; foreign matter into the lubricant inside; lubricant caused by poor surface roughness; paired parts of the surface finish rolling bad.

     Measures: the lubricant is selected; improve the sealing means; improved surface finish of parts rolling pair.