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Fluid power hydraulics - parts, accesories

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Metric AB differential sleeves

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Metric differential sleeves

Differential sleeves are threaded components intended for thread size reduction. These sleeves have an external thread on one side and an internal thread on the other. Differential sleeves are also called reduction nipples. Other types of reduction nipples are metric straight connectors ( external thread / external thread ) or metric elbow connectors. Differential sleeves are very often used in hydraulic cylinders (screwed into the internal thread), thus obtaining a different thread size. Metric version sleeves are not very popular - it is a much better idea to reduce using the previously mentioned straight connectors or elbow connectors. The first thread given in the name is the external thread 

Metric thread reduction

Metric differential sleeves are components that allow for changing the thread size, which enables the adjustment of hydraulic connections to the required parameters. Thanks to the thread reduction function, these sleeves are often called thread reductions. The following category includes metric sleeves with metric threads, which are used in various hydraulic systems. Their high-quality workmanship and threading precision ensure tightness and reliability in all operating conditions. Why are metric differential sleeves called AB sleeves? Metric differential sleeves are often referred to as AB sleeves, which results from the way they are marked in the hydraulic fitting naming system. The abbreviation „A = internal thread, abbreviation B = external thread”. Differential sleeves are a type of thread adapter that enables the reduction of a thread from a larger to a smaller size or vice versa. AB sleeves are used in power hydraulics, pneumatics, and other installations requiring precise thread matching. Their design allows for quick and effective adjustment of connections without the need to replace entire system components. The offer includes various variants of metric sleeves, tailored to specific installation needs.

Technical data of metric differential sleeves

  • Purpose : thread reduction 
  • Execution : galvanized free-cutting steel 
  • Available threads : metric
  • Working pressure : up to several hundred bar depending on the size