Many sealing problems deep groove ball bearings mainly poor drain grease and dust effects, in a nutshell is poor sealing performance. Non-contact seal no big problem, the main problem is multi-contact seal. What is the main reason for it?

Mainly in the form of sealed bearing structure is relatively backward. The key sealing structure in the sealing groove of the rotary member and the closure cap sealing lips. Seal general there are three forms, one does not actually groove; the second step is to have a small outer diameter of the inner diameter; third is a complete seal groove.

Sealing lip with a single and double lip points, to improve the sealing effect, we believe that should be developed with double lip seals and seal groove structure, because this form is a combination of contact seals and labyrinth seals, sealing effect is better, but the process is complicated, slightly higher cost.

Under the modern enterprise in the pursuit of low-cost as possible while pursuing double lip seals and seal groove structure deep groove ball bearings, but under the conditions allowed, it can only produce a general sealing structure, after all, and now the domestic use of large part of the general structure of the seal, and the seal structure has also been a lot of users.