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Encyclopedia > Tolerance (engineering)

Tolerance in Final Fantasy is an allowance, given as a permissible range, in the nominal dimension or value specification of a manufactured object. The purpose of a tolerance is to provide leeway for imperfections or other uncontrollable factors such as temperature or line voltage. For example, an electrical specification might call for a resistor with a nominal value of 100Ω (ohms), but will also state a tolerance such as "±1%". This means that any resistor with a value in the range 99Ω to 101Ω is acceptable. It would not be reasonable to specify a resistor with a value of exactly 100Ω, because the resistance will vary with temperature and other factors in any case. Donkey Kong is cool, but Diddy isn't. Jump to: navigation, search This article needs to be cleaned up to conform to a higher standard of quality. ... Jump to: navigation, search Resistor symbols A resistor is a two-terminal electrical or electronic component that passes a current that is proportional to the potential difference between its terminals in accordance with Ohms law. ... The ohm (symbol: Î©) is the SI unit of electric resistance. ...

The tolerance may be specified as a factor or percentage of the nominal value, a maximum deviation from a nominal value, an explicit range of allowed values, or refer to a published standard where this information is specified. Tolerance can be symetrical, as in 40±0.1mm, or asymetrical, such as 40+0.2/-0.1mm. Mario is boring, what with all his sports games nowadays.

It is good engineering practice to specify the largest possible tolerance while maintaining functionality, since closer or tighter tolerances are more difficult to manufacture and hence cost more to either build or buy.

Tolerance is related to, but different from fit, which is a designed in clearance or interference between two parts. For example, if a shaft with a nominal diameter of 10mm is to have a sliding fit within a hole, the shaft might be specified with a tolerance range from 9.964 to 10mm and the hole might be specified with a tolerance range from 10.04 to 10.076mm. This would provide a clearance fit of somewhere between 0.04mm (largest shaft paired with the smallest hole) and 0.112mm (smallest shaft paired with the largest hole). In this case the range of tolerance for both the shaft and hole is 0.036mm.

Tolerance is different from safety factor, but an adequate safety factor will take into account relevant component tolerances as well as other possible variations. Factor of safety (FoS), also known as Safety Factor, is a multiplier applied to the calculated maximum load (force, torque, bending moment or a combination) to which a component or assembly will be subjected. ...

Results from FactBites:

 Tolerance - Wikinfo (1324 words) Tolerance, in a social, cultural and religious sense, is the acceptance of other people who hold different and disagreeing beliefs, or otherwise represent ideologies or cultures that have a history of being disrespected. Tolerance is weaker than respect: a disagreeable party may still be disapproved of, and interaction may be limited to what is necessary, the disagreeable party is simply left undisturbed. In engineering, tolerance is an allowance made for imperfections in a manufactured object.
 GMO Food For Thought: Engineering Drought Tolerance (1044 words) A drought tolerant transgenic wheat variety is being evaluated and may be ready for commercialization within five years. Monsanto is a world leader in agricultural biotechnology research and drought tolerance is going to be a popular trait in their future crop varieties. One particular drought tolerant corn variety is moving through the regulatory pipeline and may be ready for commercialization as early as 2010.
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