and why the solution is not in the catalog
The test bench ran smoothly.
The load was constant.
And yet, after about an hour, the standard shaft seal on one drive unit failed.
Oil leaked out and the test had to be stopped.
A typical real-world scenario.
On paper, the seal is suitable.
In reality, it becomes clear whether it can withstand the application.
Why such damage occurs:
In drive technology, several loads occur simultaneously. Rotational movement, pressure, temperature, and changing loads act in parallel. For standard solutions, this is often the load limit. What works in the catalog does not always stand up to practical use.
Our approach:
Instead of “just sending the next seal off the shelf,” we looked at the application as a complete system.
What stresses are actually at work?
Where are the critical zones?
And how can the existing sealing system be optimized in a targeted manner?
The solution was not another standard shaft seal, but the targeted use of a pressure-resistant shaft seal (FKM) – tailored to the actual load during operation.
Results in preliminary testing
✔️ Stable operation
✔️ No leakage
✔️ Significantly higher operational reliability
Feedback from the field (customer):
"Thank you very much for your quick and uncomplicated support.
The preliminary test with your pressure-resistant shaft seal was successful.
As a next step, we are converting several tractors for initial field use."
Conclusion:
Sealing technology is not a catalog product, but rather a systematic endeavor.
Only when the load, installation situation, and operating conditions are considered together can a permanently reliable solution be created.
This is exactly where ttv comes in:
Understanding applications. Analyzing boundary conditions. Developing solutions – beyond standard parts.
Are you facing similar challenges in drive technology or seal design?
Then get in touch with us – we will take a look at your application together.