- In addition to preventing oil leaks, oil seals also help to keep contaminants out of the motor. Dust, dirt, and debris can cause damage to the internal components of the motor if they are allowed to enter. The oil seal acts as a barrier to keep these harmful substances out and maintain the cleanliness of the motor.
- In conclusion, metric oil seals are an essential component in machinery and equipment to prevent oil leakage and maintain operational efficiency. These seals are available in a variety of materials and sizes to suit different applications and operating conditions. By choosing the right seal and ensuring proper installation and maintenance, businesses can protect their equipment and maximize performance.
There are many different materials used to manufacture oil seals.
Oil seals come in a range of sizes ranging from 0 cm to 33 cm, and choosing the right size is critical to performance. The size of an oil seal is determined by the following dimensions:


Place the ruler or straight-edge on edge diagonally across the head and block and look for gaps showing light anywhere between the ruler and block.
As earlier said, oil seals perform some functions that ensure the functionality of mechanical equipment and extend their lifespan. And how they do this is by retaining lubricants at all cost and not making them escape no matter how high the pressure of the machine is.
Figure 5: JTEKT seal numbering system
Table 6: Codes and numbers used in seal numbers

Choosing the right oil seal
ACM
3. TEMPERATURE: Similar to the pressure level, you need to know what temperature your machinery can operate at. You need to choose a seal that can withstand the heat or cold. PTFE have the widest rang of temperature, making them a safe option when you are uncertain of the range.