Hello fello technicans
small introduction iam from the Netherlands and work as a R&D engineer. As fas as my experiances goes i start to think allot of engineers included my self do not have the right knowlage about radial shaft sealing.
Less than 20% of seals and gaskets ever reach their expected “operating life” in any given application. Of the 80% that are replaced due to scheduled maintenance, ineffective performance, or failure, 40% can be attributed to improper lubrication.
For now i would like to share knowalage about radial shaft sealing in the way of design and faillures.
theoratical a radial seal develops its seal through a pumping effect by interferance of seall lip and rotating shaft. Hereby there are allot of influnces on this.
What roughness/profiel is minimum for a proper working of the seal? I found that Microaperties are very important.
Some shafts that have been in operation for a few k's in running hours show running in profile were lip made contact. Hardness of profile is advised for 55-65 HRC.
small introduction iam from the Netherlands and work as a R&D engineer. As fas as my experiances goes i start to think allot of engineers included my self do not have the right knowlage about radial shaft sealing.
Less than 20% of seals and gaskets ever reach their expected “operating life” in any given application. Of the 80% that are replaced due to scheduled maintenance, ineffective performance, or failure, 40% can be attributed to improper lubrication.
For now i would like to share knowalage about radial shaft sealing in the way of design and faillures.
theoratical a radial seal develops its seal through a pumping effect by interferance of seall lip and rotating shaft. Hereby there are allot of influnces on this.
What roughness/profiel is minimum for a proper working of the seal? I found that Microaperties are very important.
Some shafts that have been in operation for a few k's in running hours show running in profile were lip made contact. Hardness of profile is advised for 55-65 HRC.
