- Oil seals are an essential component of machinery and equipment, playing a crucial role in preventing oil leakage and ensuring the smooth operation of various systems. Among them, TC oil seals are widely used and recognized for their effectiveness and durability.
Why are sealed bearings favored over the unsealed alternative? Why ought sealed ball bearings be preferred to unsealed ones? What advantages can sealed ball bearings offer?
- In the grand scheme of automotive engineering, the top valve cover gasket might seem like a small cog in a large machine. However, its role in protecting the engine and ensuring proper functionality cannot be understated. Regular checks and timely replacements should be part of any car maintenance routine. By paying attention to this detail, drivers can safeguard their engines against leaks, maintain optimal performance, and avoid unnecessary expenses.
• Compact design
Maintenance and Replacement of Gaskets

The edge of the metal is finely ground after seal manufacture in a centerless grinder to enable an interference fit in the oil seal housing. A slight chamfer on the outer diameter (OD) of the seal is desirable for easy assembly. The sealing lip is prepared by buffing, grinding or cutting away the rubber flash which occurs at the sealing edge. A fine sealing edge creates sufficient pressure on the shaft to minimise spring load, leading to lower friction whilst maintaining effective seal performance. The garter spring plays an important role in the efficiency of the oil seal. If its tension is too high, heat will be generated between the sealing lip and the shaft, and result in rapid wear of the lip. If too low, the spring will be ineffective and the sealing lip will be worn away leading to leakage of the fluid.
Maintenance and Replacement of Spark Plug Wires and Spark Plugs
Oil seals are widely used as sealing devices for machines.
JTEKT's oil seals are described in our catalog, Oil Seals & O-Rings.
However, the catalog uses a large number of technical terms and is very long, so many people seem to have trouble handling it.
Therefore, this series of columns will summarize the following in order:
• The structure, functions, and types of oil seals
• How to select the right oil seal
• Handling of seals, and causes and countermeasures for oil seal failure

Without minor lip
Type code
There are various sizes of industrial and ordinary oil seals, ranging from 0 to 33cm (13in). These varieties are also designed for different temperatures. As long as your seal matches the original equipment it’s intended for, you can be sure your machine will perform at its best. For further guidance and information regarding oil seals, don’t hesitate to contact our knowledgeable team. We are always available to assist you with your bearing, seal and gasket needs.
Put the jack and wooden spacer under the sump and raise the engine just enough to free the supports.
Figure 9: Housing-bore eccentricity

Function of hydrodynamic ribs
Propylene (fluorinated ethylene)
Rotary Wheel Of Auto Parts
Once you have selected the most suitable seal available, considering the environment, temperature, shaft speed, pressure, lubrication availability, as well as the size, of course, the seal should be stored adequately and then fitted properly. Here are a few suggestions that could help:-