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Torque Conversion Chart
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lb-ft
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lb-in
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oz-in
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Dyne-cm
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Nm
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Ncm
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Kpm(kgfm)
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g cm
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lb-ft
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1
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12
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192
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1.356x107
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1.356
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1.356x102
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0.1383
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1.383x104
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lb-in
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8.333x10-2
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1
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16
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1.1298x106
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0.113
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11.3
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1.1152x10-2
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1.152x103
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oz-in
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5.208x10-3
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6.250x10-2
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1
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7.062x104
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7.062x10-3
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0.7062
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7.201x10-4
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72.01
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Dyne-cm
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7.376x10-3
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8.851x10-7
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1.416x10-5
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1
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10-7
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10-5
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1.0197x10-8
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1.0197x10-3
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Nm
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0.7376
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8.8509
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1.4161x102
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107
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1
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102
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0.10197
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1.0197x104
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Ncm
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7.376x10-3
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8.8509x10-2
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1.4161
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105
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10-2
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1
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1.0197x10-3
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0.10197
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Kpm(kgfm)
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7.233
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86.796
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1.389x103
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9.8067x107
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9.8066
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980.665
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1
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105
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g cm
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7.233x10-5
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8.680x10-4
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1.389x10-2
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980.67
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9.8066x10-5
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9.8066x10-3
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10-5
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1
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Temperature
Conversion Formula
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Farenheit
= 9/5¼C + 32
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Centigrade
= 5/9 (¼F - 32)
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Horsepower
Horsepower
is a common unit for measuring the rate of doing work. When James Watt
perfected the steam engine, he wished to compare its performance with that
of a horse. It was estimated that a horse could raise a bail of cotton
weighing 550 pounds vertically at a rate of one foot in one second.
Therefore, the unit of horsepower was established at 550 ft-lbs. / sec. or
33,000 ft-lbs. / min.
In our
industry we need to express horsepower in terms of rotory motion.
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Circumference
= 2 R
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Therefore, the work accomplished can be expressed as follows:
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HP =
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Force
(F) (lbs) X Radius (R) X 2 X RPM
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33,000 X 12
(in-lbs/min)
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(F X R = T)
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Therefore:
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HP
=
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Torque
(T) (in-lbs) X RPM
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63,025
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or:
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T
(in-lbs) =
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HP
x 63,025
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RPM
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