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TIME-SERT insert. A threaded insert, also known as a threaded bushing, is a fastener element that is inserted into an object to add a threaded hole. [1] They may be used to repair a stripped threaded hole, provide a durable threaded hole in a soft material, place a thread on a material too thin to accept it, mold or cast threads into a work piece thereby eliminating a machining operation, or ...
Threaded steel pipe is widely used in buildings to convey natural gas or propane fuel and is also a popular choice in fire sprinkler systems due to its resistance to mechanical damage and high heat (including the threaded joints). Threaded steel pipe may still be used in high-security or exposed locations because it is more resistant to ...
Threaded inserts are one, of several, products used for thread repair. A more appropriate section would be "thread repair" with "threaded insert" as a sub-section. I suggest a more comprehensive treatment like the following: Thread repair is a common maintenance process that occurs when a bolt or fastener breaks inside a threaded hole.
Bushing (electrical), an insulated device that allows a conductor to pass through a grounded conducting barrier; Bushing (isolator), a mechanical device used to reduce vibrational energy transfer between two parts; Drill bushing, a tool used to guide the placement of a hole when drilling in a workpiece; Threaded bushing, a metal sleeve with ...
A close nipple can only be unscrewed by gripping one threaded end with a pipe wrench which will damage the threads and necessitate replacing the nipple, or by using a specialty tool known as a nipple wrench (or known as an internal pipe wrench) which grips the inside of the pipe, leaving the threads undamaged. When the ends are of two different ...
Examples of adapters include one end BSP threaded with the other NPT threaded, and one end threaded with the other a plain socket for brazing. A coupling whose ends use the same connection method but are of different sizes is called a reducing coupling or reducer. An example is a 3/4" NPT to 1/2" NPT coupling.
The sleeve is an alloy steel forging, heat-treated and ground to a fine finish. The sleeve has a precision non-locking tapered bore, which fits on, and is keyed to, the tapered roll neck, thus becoming the bearing journal. Surrounding the sleeve is the bushing, fixed in the chock, which carries the radial load.
Simple diagram of a drilling rig and its basic operation. The kelly drive is #19. A kelly drive is a type of well drilling device on an oil or gas drilling rig that employs a section of pipe with a polygonal (three-, four-, six-, or eight-sided) or splined outer surface, which passes through the matching polygonal or splined kelly (mating) bushing and rotary table.
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