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Ring sizes can be measured physically by a paper, plastic, or metal ring sizer (as a gauge) or by measuring the inner diameter of a ring that already fits. Ring sticks are tools used to measure the inner size of a ring, and are typically made from plastic, delrin , wood, aluminium, or of multiple materials.
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Items of body piercing jewelry have an important common factor: the diameter of the part of the item of jewelry where it will rest in the piercing site. With the wearing of European-traditional kinds of earrings, that thickness is not an issue, because jewelry is made to use only thin wire for support, and the wearer need only have a narrow piercing hole to accommodate it.
Typical O-ring and application. An O-ring, also known as a packing or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, forming a seal at the interface.
A1: This varies widely by O-ring material and joint design, and also depends (as you might expect) on the lifespan during which you need the O-ring to seal. For common O-ring elastomers, max temps may be expected to be between 100 and 200 degC, with max pressures between 500 and 5000 kPa. Unclben 23:53, 29 October 2006 (UTC)
A ring gauge, or ring gage, is a cylindrical ring of a thermally stable material, often steel, whose inside diameter is finished to gauge tolerance and is used for checking the external diameter of a cylindrical object. [1] Ring gauges are used for comparative gauging as well as for checking, calibrating, or setting of gauges or other standards ...
When using a micrometer to set a dial bore gauge, the accuracy of the measurement will be 0.002 inches or 0.0508 millimeters. A ring gauge can be used to obtain higher accuracy at a higher cost and higher time requirement. When a dial bore gauge is set using a ring gauge, overall accuracy can be within 0.0001 inches or 0.00254 millimeter. [2]
Point Metric size American system Continental system Chinese system American [4] British [1] French [5] German [6] Dutch Character Pinyin Meaning 1 ≈ 0.353 mm: American [a] ...
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