Selecting Quality Silicone and Rubber Gaskets
As shown in Figure 1, sealing devices come in two types: contact and non-contact.
Oil seals are among the major contact type sealing devices.Hydrogenated nitrile natural rubber (HNBR)
Seals are essential to protecting the bearings of any rotating shaft assembly -They prevent contaminants such as dirt, dust and water, while also preserving the system’s lubricant.
70: The seal suits the housing bore diameter of ϕ70 mm. - In engines, the Oil Seal 20x35x7 is often used around rotating shafts, such as crankshafts or camshafts, where it prevents oil from escaping and foreign particles from entering. Its effectiveness in this role significantly contributes to maintaining proper lubrication, reducing friction, and ultimately prolonging the life of engine components Its effectiveness in this role significantly contributes to maintaining proper lubrication, reducing friction, and ultimately prolonging the life of engine components
Its effectiveness in this role significantly contributes to maintaining proper lubrication, reducing friction, and ultimately prolonging the life of engine components Its effectiveness in this role significantly contributes to maintaining proper lubrication, reducing friction, and ultimately prolonging the life of engine components
oil seal 20 35 7.
- The automotive industry relies heavily on rubber gaskets for sealing purposes. The 40mm size is particularly suitable for applications where a moderate level of compression is required. For instance, they are used in engine compartments, transmission systems, and exhaust systems to prevent leaks and ensure a proper seal. The durability and resistance to extreme temperatures make 40mm rubber gaskets ideal for automotive applications.
MVQ
- In addition to improving fuel efficiency, the A7RTC spark plug also helps to improve the overall performance of your engine
Nominal seal width
b, mm
Figure 6: Oil seals for cars
Oil seals are protective elements. They prevent the mixing of water and lubricants within a machine, thereby ensuring optimal machine functionality. Also, oil seals help to prevent lubricant leakage at high pressure like when the machine is working at an extremely high rate. Not only that, radial shaft seals stop foreign components from entering a machine. This is because they can contaminate the lubricant and even damage the machine.
Take extra care with a light alloy block or head. It is vital to avoid scratching the machined surface.

metal oil seal.
Examples of defects
Fluorine rubber (FKM, Viton™)

black spark plug. This increased durability can result in fewer maintenance issues and a more reliable engine overall.


Bauerle and Bruhnke7 found that aeration reduces the effect of oil additives on fluoroelastomer properties. Some of their data is reproduced in Fig. 14.4,5 showing the effect of aeration of an SF-grade 5W30 oil on the retention of elongation of a VDF/HFP copolymer (FKM-E430), a VDF/HFP/TFE terpolymer (FKM-B600), and a VDF/PMVE/TFE fluoroelastomer (FKM-GFLT). The HFP-containing polymers show much better retention of properties with aeration.
② Spring code