Type A Oil Seals
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2131
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858
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958
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1619
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2066
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2474
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2678
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2655
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250
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672
Applications of Oil Seals
Figure 5 explains the JTEKT seal numbering system.
Seal numbers consist of
(1) the seal type code,
(2) the spring code,
(3) the lip type code,
(4) the dimensional numbers, and
(5) the special type code,
and Table 6 shows examples of each of these codes/numbers.

When choosing seal materials, it is critical to evaluate the environment and application. Common seal materials include:
Additionally, lubricants can be used on both sides of the oil seal to reduce friction and enhance sealing performance. The sealing process is crucial for preventing contaminants from entering machinery or equipment while keeping essential fluids contained within.