Several common types of rolling bearing with seal

Contact: dustproof cover sealing structure, function and advantages and disadvantages: non-contact steel dust cover sealing device, is one of the most commonly used. Seal occupies space is appropriate, suitable for high speed, dust and oil leakage performance is poorer. Non-contact way: single lip seal structure, function and advantages and disadvantages: steel plate and rubber combination non-contact sealing device, inner ring diameter and sealing lip and labyrinth seal grooves spear. Seal occupies space is appropriate, suitable for high speed, dust and oil spill prevention performance. Non-contact way: double lip seal structure, function and advantages and disadvantages: steel plate and rubber composite non-contact shoulders mouth sealing device, is one of the most commonly used. Similar performance to the RU type. Contact: radial sealing structure, function and advantages and disadvantages: steel plate and rubber contact 'b' type sealing device, single lip structure is one of the most commonly used. High speed and dynamic performance, other performance is better. Contact: axial sealing structure, function and advantages and disadvantages: steel plate and rubber contact sealing device, lips mouth structure, a lip surface and inner ring diameter platform-margin touch, another lip into a labyrinth seal and inner circle. Various performance is better.