Detailed Product Description KET electric fan bearing specific info:.KET Bearing Co., Ltd ... used in machinery, automobiles, motorcycles, agriculture machinery, bicycle and fitness equipments.Such as:Series miniature, series6000, series6200, series6300 ... 1. Assembly2. Windage test3. Cleaning4. Rotary test5. Greasing and gland6. Noise inspection7. Appearance inspection8. Rust prevention9. Product ...