Product Feature

Ball bearing 688 is one kind of miniature bearing, simple in design, non-separable, suitable for high and even very high speeds and are robust in operation, requiring little maintenance. Deep groove bearing is with high load ratings, also less tolerant of misalignment of the inner and outer races. It's your best choice.

Application

Miniature bearing suitable for precision instrument, low noise electric motor, automobile and motorcycle, etc. It is very popular type of bearing. Bearing 688 remote-controlled cars, bicycles, skateboard, electric motor, fishing reel, food machinery, instrument, dental, many other roll construction. Also 688 bearing is widely used to made plastic roller for sliding door and window, we provide these rollers, too. 

Method of extending the bearing 688's lifetime.

1. The installation is correct, that affects precision, life, performance.And fill the bearing with lubricant after installation.

2. Don't allow strong impact, such as hammer striking, transfer roller pressure 

3. Use the accurate installation tool, avoid to use cloth kind and short fibers

4. Lubricate the bearing to avoid rust with high quality mineral oil, especially in summer

5. General inspection, such as the surrounding temperature, vibrate, noise inspection

6. Keep bearing cleaning from dirt, dust, pollutant, moisture.

7. Bearing should not be ultra cooled.