CWEA Maintenance Technologist Practice Test

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Prepare for the CWEA Maintenance Technologist Exam. Study with our interactive quizzes and understand every concept with detailed explanations. Equip yourself with the knowledge you need to succeed!

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Which of the following is required for a sealed ball bearing?

Regular lubrication every month
Lubrication under high temperature conditions
It does not need to be lubricated under normal use
Frequent cleaning to avoid rust

The correct answer is: It does not need to be lubricated under normal use

Sealed ball bearings are designed specifically to be maintenance-free under normal operating conditions. The sealing mechanism prevents dirt, moisture, and contaminants from entering the bearing, while also retaining the lubricant that has been pre-filled during manufacturing. This design significantly reduces the need for regular lubrication, making it unnecessary to lubricate the bearing in typical use situations. The primary advantage of sealed ball bearings is that they can operate efficiently without the ongoing need for maintenance, which is ideal for applications where accessibility is challenging or where maintenance schedules are difficult to adhere to. Therefore, the correct answer reflects the inherent properties of sealed ball bearings, which are intended to function without the need for frequent lubrication under normal conditions.