In addition to stability, the anchor cross bit also offers improved accuracy during drilling operations. The precise design of the bit allows for more controlled drilling, ensuring that the desired depth and angle are achieved with minimal error. This is essential for achieving the desired results in a drilling project, whether it be for mining, construction, or geotechnical purposes This is essential for achieving the desired results in a drilling project, whether it be for mining, construction, or geotechnical purposes

Case study 1: Volkswagen
2
Requirements of the shaft
Even more important than a correct interference fit of the Oil Seal is a perfectly smooth shaft in the region of the seal, particularly if shaft surface speed is high and the medium to be sealed is under a certain amount of excess pressure. The surface roughness of the shaft depends on the average profile depth Ra of the tool marks caused by the machining process. Oil Seals made of PTFE require, independent of the surface speed, a surface roughness of between 0,1 to 0,2 mm, because PTFE has less wear resistance than rubber seals. For normal circumstances, the shaft in the region of the seal must have a surface roughness of approximately: To summarize, the surface of the shaft in the region of the seal should not have noticeable machining marks. For pivoting shafts and other difficult or critical sealing applications, it is recommended that Oil Seals with a helical groove hydrodynamic pattern, which has a pumping effect, be used. When grinding and polishing, an axial movement of the grindstone along the shaft must be avoided in order to prevent machine lay.

tc oil sealing. These seals can be used in a wide range of applications, including automotive, aerospace, manufacturing, and more. They are available in different sizes and configurations to suit specific requirements, making them suitable for various industries and environments.
Friction modifiers: Friction modifiers help reduce friction when your engine is operating under high temperatures and with heavy loads. This additive can also help you maximize your fuel efficiency.
Select your oil seal type according to Table 2.
Iridium spark plugs have gained popularity in the automotive industry due to their exceptional durability, high melting point, and superior conductivity. These qualities make them an ideal choice for modern motor vehicles, offering enhanced ignition performance, fuel efficiency, and longevity compared to traditional spark plug materials. Iridium spark plugs are designed to deliver consistent and reliable ignition, contributing to improved engine performance and reduced emissions in motor vehicles.
Figure 3: Sealing function of main lip radial load
* KOYO is a registered trademark of JTEKT.
Figure 4 shows the features of a JTEKT oil seal.