These oil seals are the best for applications involving high temperatures. It’s suitable for temperatures between -4 degrees Fahrenheit and 392 degrees Fahrenheit. Also, it’s highly resistant to acids, dissolvent materials, and other chemicals. Viton (FKM/FPM) oil seals can run at a maximum speed of 38 m/s.
Vulcanizates of several fluoroelastomers, listed in Table 14.1, were exposed to a standard 5W-30 engine oil, ASTM Service Fluid 105, for up to 6 weeks at 150°C (302°F).5 The oil was changed weekly, but was not aerated. Retained elongation was measured after exposure for 1, 2, 3, and 6 weeks; data are shown in Fig. 14.3. The results indicate that bisphenol-cured FKM-A500 VDF/HFP copolymer, FKM-B600 VDF/HFP/TFE terpolymer, and peroxide-cured FEPM-7456 TFE/P/VDF terpolymer lost most of their original elongation over the course of the test exposure, indicating considerable additional cross-linking occurred by reaction with amine- and phenol-containing oil additives. The other fluoroelastomers showed better retention of elongation, being much less susceptible to additional crosslinking. Note that FEPM-7456 contains a high level of VDF (about 30%), while FEPM-7506 contains a relatively low VDF level (10–15%) to serve as cure site for bisphenol curing. The other FEPM types contain no VDF.
Table 4: JTEKT oil seal type codes and corresponding ISO and JIS standards
Figure 4: JTEKT oil seal features
The SSR 125 spark plug is tailored for motorcycles, particularly the SSR 125 model, which is renowned for its agility and speed. Its design is centered around the principle of delivering a robust and reliable ignition source, translating into enhanced engine responsiveness and improved fuel economy. With a 125cc displacement, the SSR 125 motorcycle demands a spark plug that can handle the intensity of its power output, and the SSR 125 spark plug fits this bill perfectly.
Furthermore, Mico spark plugs are available in a variety of sizes and heat ranges to suit different types of engines and driving conditions. Whether you own a compact car, a sports vehicle, or a heavy-duty truck, there is a Mico spark plug that will meet your specific needs. Additionally, Mico spark plugs are competitively priced, making them a cost-effective choice for vehicle owners looking to improve their engine performance.
Duplex Oil Seals
The range of uses of peroxydically cross-linked EPDM includes in hot water and steam seals. EPDM is also very resistant to ageing and ozone. Compared with the usual types of synthesis natural rubber it has good resistance to cold temperatures. EPDM is not resistant to aliphatic or aromatic hydrocarbons or mineral oil products. Resistance to chemicals, and also to oxidising agents, is very good. Temperature range from -50 °C to +140 °C depending on type.
I’m ready for my high mileage oil change!
Oil seals, also known as shaft seals, are radial lip type seals which are primarily used for retaining lubricants in equipment having rotating, reciprocating or oscillating shafts. The rotating shaft application is most common.