When selecting a lubricant type for bearings, which factor is NOT considered?

When choosing a lubricant for bearings, various factors are crucial to ensure optimal performance and longevity of the bearing. Operating temperatures are significant because different lubricants perform better at specific temperature ranges; too high or too low may lead to lubricant breakdown or inadequate lubrication. Environmental conditions also play a critical role; for instance, lubricants might need to resist moisture or contaminants found in specific environments, impacting the choice of lubricant. Additionally, the speed of operation is important because different lubricants have varying viscosities and flow characteristics that can affect their performance at high or low speeds.

The color of the lubricant, however, does not impact its effectiveness or suitability for use in bearings. While some industries may use color coding for ease of identification or to denote specific properties, the color itself is not a functional attribute that affects lubrication performance. Therefore, it is not a factor to be considered seriously when selecting a lubricant type for bearings.