The electrical insulating material is a key base material for manufacturing electrical (electronic) equipment, which has decisive effects on the life of electrical (electronic) equipment and operational reliability.

Carbon brushes, also called electric brushes, are widely used in many electrical equipment as a sliding contact.

If the lead wire of the carbon brush is covered with an insulating tube, it should be installed in the insulating carbon brush holder

Whether the bearing is installed correctly affects the accuracy, life and performance. Therefore, the design and assembly department should fully study the bearing installation.

Ball bearing is a kind of rolling bearing. The ball is installed in the middle of the inner steel ring and the outer steel ring, which can bear a large load.