• Pressure: As the pressure increases, the radial load and the friction of the sealing lip increase in contact with the shaft. As with temperature, each oil seal has a recommended pressure for optimum performance. Excessive pressure causes the seals to wear more quickly and consequently have a shorter life.

  • They are best known for their bright light emission that is far reaching. Their tungsten is encased in a quartz tube filled with xenon gas. They may require more power when turned on but use much less of it to maintain brightness. Moreover, they have a longer lifespan compared to the halogens. They may seem better but they also present some limitations such as being more expensive as far as manufacturing and replacement is concerned. They are not easy to manufacture from their complex design. Their bright light cause a blinding effect to oncoming traffic which is undesirable and can cause dangers on roads.
  • The O.D. surface affixes the oil seal to the housing and prevents leakage , through the fitting area, of substances to be sealed, while excluding contaminants.
  • Example
  • The dimensions 45x62x8 denote the outer diameter, inner diameter, and thickness of the oil seal, respectively. In this case, the outer diameter measures 45mm, the inner diameter stands at 62mm, and the thickness is 8mm. These measurements are critical as they determine the compatibility of the seal with different mechanical components, ensuring a snug fit and optimal performance.
  • A high temperature oil seal is primarily constructed from materials that exhibit exceptional resistance to heat degradation. Materials like silicone rubber, fluoroelastomers, and carbon graphite are commonly used due to their excellent thermal stability and chemical inertness. They can endure temperatures ranging from -50°C to 300°C or even higher, depending on the specific compound used. The unique composition of these seals ensures minimal swelling, hardening, or softening, thereby preserving their sealing effectiveness over extended periods.
  • The advantages 
  • Features of the Oil Seal 30x52x10
  • Abrasion-resistant 

  • As can be seen from the seal cross-section shown in Fig. 14.2, shaft seals are complex shapes that require advanced mold design and molding techniques (see Section 7.3 for discussion of fluoroelastomer molding). For some time, most shaft seals were made in the United States by compression molding. Injection molding of shaft seals is prevalent in Europe, and is being used increasingly in the United States. An advantage of compression molding is that preforms (usually rings cut from extruded tubing) are used that closely approximate the amount of stock required for the final parts, so compound waste is minimized. For injection molding, the amount of cured stock in the central sprue and runner (actually a thin sheet leading to the seal lip) is often large compared to the stock required for the final part, so the waste of high-cost fluoroelastomer may be high. Such waste is reduced in modern injection molding designs.

  • Air side face The oil seal surface vertical to the center line of the shaft on the side that does not come in contact with substances to be sealed is called the back face.

  • Lubricant Amount - Seals will always perform best when lubricated, however in some machines there are more likely to be dry spells. For these cases, selecting a leather or PTFE seal will be beneficial, as both can operate with less lubrication than others.



  • TC oil sealing refers to oil seals that meet the requirements of the TC design standard. These seals are used in various industries to prevent the leakage of oil and other fluids in machinery and equipment. The TC oil sealing is designed to provide a reliable barrier between moving parts and the surrounding environment.
  • To perform a spark test, you'll need a spark plug tester, which checks the spark plug's ability to produce a spark. Connect the tester to the spark plug and the ignition system, then crank the engine. A healthy spark plug should produce a strong, blue spark across the gap A healthy spark plug should produce a strong, blue spark across the gap A healthy spark plug should produce a strong, blue spark across the gap A healthy spark plug should produce a strong, blue spark across the gaptesting a spark plug. If the spark is weak or absent, the plug might be faulty and needs replacing.