As an example, this oil seal has a part number that corresponds to a Shaft Size of 3”, a Bore Size of 4”, a Width Size of 0.625”, a Style of TB2, and is made of Viton material. Conversely, the same size oil seal in Metric has a Shaft Size of 76.20 mm, a Bore Size of 101.60 mm, and a Width Size of 15.88 mm.
- The primary function of a pulley oil seal is to maintain the integrity of the lubrication system. By sealing the interface between the pulley and the shaft, they prevent oil from escaping, ensuring that the lubricant stays within the system, lubricating the moving parts and reducing friction. This not only prolongs the life of the machinery but also minimizes energy consumption by maintaining optimal operating conditions.
- When it comes to the 2.0% TSI engine, the valve cover gasket must meet specific requirements to ensure optimal performance. The gasket must be made from high-quality materials that can withstand the high temperatures and pressures inside the engine. It must also be designed to provide a tight seal to prevent oil leaks and maintain proper lubrication.
- Spark plug replacement is an essential aspect of routine car maintenance that often goes unnoticed until it becomes a problem. Spark plugs, the small but mighty components in your vehicle's engine, play a pivotal role in igniting the air-fuel mixture, thereby enabling your car to run smoothly. Over time, these plugs can wear out or become dirty, leading to reduced efficiency and performance.
Figure 1: Types of sealing devices
With the help of tips and information from our suppliers, our specialists will be happy to explain how to install oil seals. Please read the instructions carefully before installation.
Environmental Considerations and Compliance
With minor lip
Type code
Table 2 b): Common types of oil seals (without spring)
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Common materials used in oil seals include nitrile rubber, fluorine rubber, silicone rubber, acrylic rubber, polyurethane, polytetrafluoroethylene, etc. When selecting the material of the oil seal, the compatibility of the material with the working medium, the adaptability to the working temperature range and the ability of the lip to follow the rotating shaft at high speed must be considered. When the oil seal is working, the temperature of its lip is higher than the working medium temperature by 20~50°C. Attention should be paid when selecting the oil seal material. The working range of the oil seal is related to the material used for the oil seal: the material is nitrile rubber (-40~120°C), Aggreko rubber (ACM) -30~180°C, fluorine rubber (FPM) -25~300°C.
Rotary Wheel Of Auto Parts
Figure 4 shows the features of a JTEKT oil seal.
What should you take into account when selecting an oil seal? Different types of oil seals and various types of materials are available, each designed for specific uses. It is also important to select the right size of oil seal for the best results. For this reason, selecting the right oil seal requires adequate understanding of the application in which it will be used.
Material Code ISO 1629
The metal case and spring material used in the oil seal should be selected based on the substance to be sealed.
Table 6 shows how to select the metal case and spring materials.
Crankshaft rear seal
WHAT ARE THE TYPES OF OIL SEALS?
Why Is Bearing A Seal Important?
The primary function of an oil seal is to create a barrier between the rotating or moving parts of a machine and prevent oil or other fluids from leaking out. This helps to ensure that the machinery operates smoothly and efficiently without any loss of lubrication or contamination of the surrounding environment. In addition to preventing leakage, oil seals also help to retain lubricant within the system, extending the life of the equipment.

