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2879
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1077
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1134
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2988
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462
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956
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1605
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1262
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2645
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2935
Figure 14.3. Oil aging of fluoroelastomers.5 Chart shows percent retained elongation. Conditions: Aged at 150°C in Service Fluid 105 (oil changed every 168 h).
Chemical Attack
Housing Surface Stop Installation
1. Clean the Surface
These new oil seals can also be equipped with a shaft rotation sensor.
Materials for Oil Seals
The basic principle of sealing is straightforward – the flexible lip is held against the rotating part (usually the shaft) whilst the casing (or O.D.) is pressed into the housing or bore and holds the seal in place. The sealing lip needs some form of lubrication to avoid overheating and is usually energized by means of a garter spring.