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Deep groove ball plastic bearing POM626 Junwang Bearing Factory direct sales
Deep groove ball plastic bearings POM626 factory direct sales, POM (polyoxymethylene resin) definition: polyoxymethylene is a linear polymer without s
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Deep groove ball plastic bearings POM626 factory direct sales, POM (polyoxymethylene resin) definition: polyoxymethylene is a linear polymer without side chains, high density, and high crystallinity. According to the different chemical structures in its molecular chain, it can be divided into two types: homopolymer formaldehyde and copolymer formaldehyde. The important difference between the two is that homopolymer formaldehyde has high density, crystallinity, and melting point, but poor thermal stability, a narrow processing temperature range (about 10 ℃), and slightly lower acid-base stability; However, the density, crystallinity, melting point, and strength of formaldehyde copolymer are relatively low, but it has good thermal stability, is not easily decomposed, has a wide processing temperature range (about 50 ℃), and has good acid-base stability. It is an engineering plastic with excellent comprehensive performance. Has good physical, mechanical, and chemical properties, especially excellent friction resistance. Commonly known as Saigang or Duogang, it is the third largest general-purpose engineering plastic. Suitable for making wear-resistant zero.
Corrosion resistant plastic bearings have multiple material solutions for different application conditions, ensuring smooth operation even in the harshest acid/alkali/salt/solvent/oil/gas/seawater erosion, to ensure ideal durability and expected lifespan. Acid alkali resistant plastic bearings, HDPE, PE, UHMWPE and other materials have been proven to be suitable for relatively weak acid-base cross environments (tested OK with 30% CuCl2 solution and 30% NaOH solution). PVDF and PTFE materials can be used in strong acid and alkali environments. Among these materials, PTFE can be used in all concentrated acid and alkali environments, even including strong acid environments such as HF and fuming sulfuric acid nitric acid (over 98%).
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