Machinery’s Handbook, 31st Edition
2960
Index
S pur gearing
( continued )
S tainless steels
( continued )
strength 429 tensile strength 389, 427–428 thermal conductivity 374 yield strength 389, 427–428 S tamping blank diameters 1426 fine blanking 1414 steel rule dies 1455–1458 S tandard nomenclature 2254 organizations vii-ix, 1620, 2254
replacement gear dimensions 2328 root and outside diameters 2217, 2227 specifications 2240 tooth contact of highest point 2236 dimensions 2211–2216 forms 2210 true involute form (TIF) diameter 2236 undercut, limit for hobbed gears 2236 S quare area 75 circles of area equal to 86 diagonals 87 prism volume 88 recesses, for self-tapping screws 1836 S quare and rectangular parallel keys 2540 S quare keys 2539 S quare roots of numbers 11 S quare rectangular keys and keyways 2539 S quare thread 2077 S quirrel cage induction motors 2645 S -shapes, structural steel 2696 measurements over wires 2310–2313 proportions 2214 thickness measurement 2220 S tabilizing gages 500 S tacking disc springs 352–354 S tainless steels 394–395, 412–415 application 415, 416 characteristics and applications 412 chemical compositions 403–404 coefficient of expansion 374 compositions 403–404, 415, 416 cutting, flame 1604, 1605 density 374 electrodes (welding) current to use with 1599 electropolishing 1644 elongation 389, 427–428 hardness 389 heat treatments 491–492 mechanical properties 427–428 melting points 374 passivation 1645 properties 415, 416 soldering 1568 ultrasonic 1568 specific heat 374 speeds for drilling, reaming, and threading 1135 for milling 1118–1119 for turning 1100 moment of inertia 2696 radius of gyration 2696 section modulus 2696 weight per foot 2696
powder metallurgy 1553 wire gage (SWG) 2703 See also standards organizations and subjects S tatic balancing 198 equivalent load, bearings 2494 load rating, bearings 2494 S tatics 156 S tatistical analysis of manufacturing data 136–142 applying statistics 139–142 comparing products with respect to average performance 139–140 minimum number of test or data points 139 statistics theory in brief 136–139 normal distribution curve 137 probability 136–137 statistical analysis 137–139 absolute error of the sample mean 138
coefficient of variation 138 confidence interval for the population mean 138–139 critical value of t -distribution 138 degrees of freedom 137 population mean 138 relative error of the sample mean 138 sample mean 137
sample standard deviation 137 statistical distribution curves 137 S tatistics absolute error of the sample mean 138 analysis 137–139 applications 139–142 coefficient of variation 138 confidence interval 138–139 degrees of freedom 137 distribution curves 137 example, manufacturing 141, 142 normal distribution curves 137 population mean 138 probability 136–137 relative error of the sample mean 138 sample mean 137
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