According to SKF, where should rolling element bearings be stored?

Rolling element bearings are precision components critical to the proper functioning of machinery, and their storage conditions significantly impact their performance and longevity. Storing these bearings flat in a vibration-free area minimizes the risk of damage and distortion. When bearings are stored in a stable environment, they are less likely to become contaminated or misaligned, ensuring that they maintain their integrity and proper functionality when installed.

Vibrations, for instance, can introduce micro-damage to the surfaces of the bearings, leading to premature failure. Storing them flat also helps distribute the weight evenly and prevents the rolling elements from shifting. Furthermore, keeping them in a controlled environment helps protect them from contaminants such as moisture and dust, which can lead to corrosion or premature wear.

Storage in areas subject to wetness, direct sunlight, or from hooks isn't ideal as these conditions can contribute to deterioration and compromised performance. Thus, the recommendation is to store rolling element bearings flat in a vibration-free area to ensure they remain in optimal condition until they are ready for use.