Snap ring grooves, axial stops and oil holes
Snap ring grooves, axial stops and oil holes are functional elements that Ernst Grob produces by slotting and coining on the S8 machine, for example on clutch plate carriers. The combination of rolling and slotting processes produces a particularly stable snap ring groove.
What are snap ring grooves, axial stops and oil holes?
These are functional elements on formed components. Snap ring grooves hold a snap ring, axial stops limit the position of components, and oil holes serve to guide oil. Ernst Grob produces them, for example on clutch plate carriers, by slotting and coining.
- Stable snap ring groove: The combination of rolling and slotting processes enables a reinforced snap ring groove through a combination of two specially optimised internal and external profiles on the clutch plate carrier.

Manufacturing at Ernst Grob
The functional elements are produced on the S8 slotting machine. The reinforced snap ring groove is created by a combination of rolling and slotting processes.
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FAQ
What makes the Grob snap ring groove special?
It is produced by a combination of rolling and slotting processes, resulting in a more stable groove with a reinforced profile.


