Product Information
- Author
- Herausgeber FKM
- EAN
- 4250697518241
- Edition
- 2011
- Delivery time
- next business day
Fettabdichtung II
190.00 EUR *
Gesamtpreis: 190.00 EUR *
Prices incl. VAT
177.57 EUR excl. VAT
available
Description
Fettabdichtung II
FKM 2012
Issue number 314
Reliable sealing of greases using radial shaft seals II
Project no. 293
VDMA member price visible after registration
Final report
Abstract:
Lubricating greases are often sealed with radial shaft seals that were developed to seal oils. This leads to a considerable restriction of the performance limits.
As a result, promising potential with regard to performance limits and friction reduction is not exploited. The reason for this is a lack of knowledge about the influence of the system components on the operating behavior.
In the project, the influence of the system components of the radial shaft seal system on its operating behavior was systematically investigated. For this purpose, investigations were carried out on a specially developed ring-disk test setup. The tests were carried out on a rotary tribometer.
The influence of the mating surface, the lubricating grease, the sealing element, the speed, the direction of movement and the contact pressure were investigated. The results obtained with the ring-disc test setup were then verified on the real rotary shaft seal system.
The research work clearly shows the great potential for optimization in the design of grease-sealing rotary shaft seal systems. The sealing edge angles play a central role in the design of the sealing element. A significant reduction in friction and wear can also be achieved by means of macrostructures in the sealing element. Furthermore, the choice of grease in particular has a decisive influence on the operating behavior. The level of the frictional torque and the lubricant supply to the sealing contact depend largely on the grease composition and its properties. In connection with the mating surface, it can be seen that excessively smooth surfaces lead to greatly increased friction torques and reduced performance limits. An extension of the performance limits and a reduction in the frictional torque can also be achieved by reducing
contact pressure.
The main influence on the individual influences of the system components were worked up and are summarized in a qualitative model. The objective of the research project has been achieved.
Issue number 314
Reliable sealing of greases using radial shaft seals II
Project no. 293
VDMA member price visible after registration
Final report
Abstract:
Lubricating greases are often sealed with radial shaft seals that were developed to seal oils. This leads to a considerable restriction of the performance limits.
As a result, promising potential with regard to performance limits and friction reduction is not exploited. The reason for this is a lack of knowledge about the influence of the system components on the operating behavior.
In the project, the influence of the system components of the radial shaft seal system on its operating behavior was systematically investigated. For this purpose, investigations were carried out on a specially developed ring-disk test setup. The tests were carried out on a rotary tribometer.
The influence of the mating surface, the lubricating grease, the sealing element, the speed, the direction of movement and the contact pressure were investigated. The results obtained with the ring-disc test setup were then verified on the real rotary shaft seal system.
The research work clearly shows the great potential for optimization in the design of grease-sealing rotary shaft seal systems. The sealing edge angles play a central role in the design of the sealing element. A significant reduction in friction and wear can also be achieved by means of macrostructures in the sealing element. Furthermore, the choice of grease in particular has a decisive influence on the operating behavior. The level of the frictional torque and the lubricant supply to the sealing contact depend largely on the grease composition and its properties. In connection with the mating surface, it can be seen that excessively smooth surfaces lead to greatly increased friction torques and reduced performance limits. An extension of the performance limits and a reduction in the frictional torque can also be achieved by reducing
contact pressure.
The main influence on the individual influences of the system components were worked up and are summarized in a qualitative model. The objective of the research project has been achieved.
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