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The material selection for hydraulic shaft seals is crucial, as it directly impacts the seal's durability and effectiveness. Materials like rubber, polyurethane, and PTFE (Teflon) are commonly used due to their resistance to chemicals, temperature fluctuations, and wear Materials like rubber, polyurethane, and PTFE (Teflon) are commonly used due to their resistance to chemicals, temperature fluctuations, and wear
Materials like rubber, polyurethane, and PTFE (Teflon) are commonly used due to their resistance to chemicals, temperature fluctuations, and wear Materials like rubber, polyurethane, and PTFE (Teflon) are commonly used due to their resistance to chemicals, temperature fluctuations, and wear
hydraulic shaft seal. The choice of material depends on factors such as the type of fluid, operating pressure, and speed of the shaft.


3. Thread the machine Thread the two needles separately using two spools of thread. Place each spool on a separate spool pin and thread them through the machine following the threading guide

how to use the double needle in sewing machine. Make sure to thread each needle correctly to avoid tangles and breakages.

how to use the double needle in sewing machine. Make sure to thread each needle correctly to avoid tangles and breakages.