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  • Definition and Applications of Compression Packing
    common of these sealing devices is compression packing, so called because of the manner in which it performs the sealing function. Made from relatively soft, pliant materials, compression or jam packings consist of a number of rings which are inserted into the annular space (stuffing box) between
  • Tamper-evident Ring Test
    The company wished to perform a compression test on the tamper evident ring, which could measure the maximum force used to â push it offâ the cap. As the tamper-evident closures are fitted onto bottles using a compressive action, this test would provide the company with valuable information
  • Buna O-Rings and Gaskets
    Buna, otherwise known as Nitrile, Buna-N or NBR, is an incredibly versatile synthetic rubber. The unique properties of this material make Buna an ideal material for O-rings, vulcanized or spliced O-rings, gaskets, and other sealing applications for various industries. Buna offers many unique
  • Ask the Expert - Wave Spring Substitution, Compression and Performance
    Welcome back to the Ask the Expert Blog, where our engineers answer commonly asked ring and spring design questions. This week, our experts field some questions about wave spring substitutions, wave spring compression, and wave spring performance.
  • How to Calculate Installation Stress of a Retaining Ring
    Retaining rings are installed by compressing into a bore (for internal rings) or expanding over a shaft(for external rings). This compression or expansion is normal and should not affect ring performance; however, too much compression or expansion may cause a ring to take a permanant set. Since
  • Ask the Expert - Wave Spring Compression and Deflection
    Welcome back to the Ask the Expert Blog, where our engineers answer commonly asked ring and spring design questions. This week, our experts field some questions about the performance characteristics of wave springs.
  • The Necessity Of A Plateaued Cylinder Wall Finish (.pdf)
    A detailed presentation of several test run engines with performance results of lower blow-by, increased compression, less ring and cylinder wall wear with the Flex-Hone Process. 28 pages.
  • Universal Testing Machine Working Principle
    Universal testing machine, a material testing machine integrating tensile, bending, compression, shearing, ring stiffness and other functions. It is mainly used for the mechanical properties test of metal and non-metal materials.

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