NSK Spherical roller bearing safekeeping
The bearings are coated with appropriate amount of anti-rust oil and packed in anti-rust paper when they leave the factory. As long as the package is not damaged, the quality of the bearings will be guaranteed.
But long stored in humidity below 65%, the temperature is 20 ℃ about conditions, the shelf in 30 cm above the ground is advisable.
In addition, the storage area should avoid direct sunlight or contact with cold walls.