- Pressure Control Drilling fluids help balance the pressure exerted by subsurface formations, preventing blowouts.


JTEKT provides special seals for use in a wide variety of machines and applications.
Table 5 lists the major special seals, their shapes, and their features.

Most ERIKS oil seals, such as the types M, MST, R and RST, are made of NBR as standard.
4
WHY SHOULD YOU CHOOSE ?
Various machines have different components that, when combined, work together as a whole. The equipment will not last forever and will eventually deteriorate through use. The use of mechanical lubrication protects these machines from deterioration while maintaining their designed function.
However, using the wrong type or not applying sufficient lubrication can lead to machine damage, equipment failure, and leaks. Therefore it is important to choose the correct lubricant for your machine.
O-rings are one of the items used to prevent leaks and product failures. Due to their cogent functions, it’s important that they are installed appropriately without causing any damage in the process.

Standard springs are made of carbon steel. We use stainless-steel springs for our GR and GRST oil seals made from FKM rubber. In some rare cases, an O-ring is even used as a spring element. Standard PTFE lip seals are not fitted with springs.
MS