Unitized MFS for Rear Axl | Sap Parts


 Conventionally a Multi Lip Seal is employed in the Rear Axle of tractor to protect the mud en- try in the transmission, however this sealing systems does not fully satisfy the intended pur- pose due to its limitations in handling extreme working conditions. These seals have sensitivity to radial shaft motion and shaft-to-housing eccentricity. These seals hence cannot be ideally used in highly abrasive applications and do not work well with light hydrocarbons, fertilizers, organic residues in in the paddy mud environ- ment. On account of extreme application condi- tions, in rear axle conventional sealing arrange- ments observed to be failing with higher fre- quency and increased service demands. 


DESIGN FEATURES 

A Special—unitized - mechanical face seal for Tractor Rear Axle application is a high- er version of simple mechanical face seal. This Face Seal Assembly consist of HDDF Type seal fitted in specially developed adapter housing and counter sleeve. This seal also have sacrificial sealing arrangement to protect the dust entry. 


APPLICATION MANAGEMENT 

Mechanical Face Seal Assembly consist of two metallic seal rings mounted in sepa- rate housing face to face. The elastomeric elements center the seal in the housing. The adaptor housing which holds one of the metal face seals (stationary seal) by an elastomeric T-ring compressed inside. The specially designed counter sleeve holds another metallic seal ring opposite to it acts as another metal face seal (rotary seal). The interface between the two precision lapped mating surfaces rotating against the other at right angles to the shaft. They form a leak-proofed seal. Secondary O-rings are located in between shaft - counter sleeve as well as in between Adapter housing -trumpet as to make possibly a firm and leak proof contact .The counter sleeve have sacrificial sealing arrangement. 


Get More Details: Toric Seals

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