Metric oil seals is a typical representative of the oil seal

Metric oil seals is a typical representative of the oil seal, generally speaking, refers to the skeleton oil seal.The role of metric oil seals is to drive the parts of the need for lubrication and output parts of isolation, not to let the oil leakage.
According to the structure form can be divided into single lip skeleton oil seal and double lip skeleton oil seal.Double lip frame oil seal of the secondary lip dust-proof action, prevent the outside dust, impurities and so on into the machine.According to the frame type, metric oil seals can be divided into inner frame metric oil seals, exposed frame oil seal and assembled oil seal.According to the working conditions can be divided into rotary skeleton oil seal and round - trip skeleton oil seal.Used for gasoline engine crankshaft, diesel engine crankshaft, gearbox, differential, shock absorber, engine, axle and other parts.
The framework metric oil seals structure consists of three parts: oil seal body, reinforcing frame and self-tightening spiral spring.Sealing body is divided into bottom and waist according to different parts.
Part, cutting edge and sealing lip, etc.Generally, in the free state of the skeleton oil seal, its inner diameter is smaller than the axle diameter, that is, there is a certain "interference".
Therefore, when the metric oil seal is loaded into the oil seal seat and the shaft, the pressure of the metric oil seals blade and the contraction force of the self-tightening spiral spring produce a certain radial tightening force on the shaft. After a period of time of operation, the pressure will quickly decrease or even disappear. Therefore, the spring can compensate the self-tightening force of the oil seal at any time.
If you want to know more about metric oil seals or need any other bearings, please also contact me!
Contact: Leon
Email: nsk@zyslbearing.com
Skype: lh19881023
MP/Whatsapp: +8615098916271