Machinery’s Handbook, 31st Edition
Index
2959
S pring
( continued ) helical compression spring design 316–320 high-carbon spring steels 305 index 315
S pur gearing
( continued )
center distance for enlarged pinion 2233 checking gear size 2300 chordal addendum 2223, 2224, 2226 measurement 2317 thickness 2221, 2223, 2224, 2226 circular pitch system 2209, 2227 thickness 2221 given outside diameter 2220 composite error inspection 2248 contact diameter 2234 data on drawings 2242 diameters for hobbing, preshaving, and shaping 2217 diametral pitch shown full size 2208 diametral pitch system 2208, 2209 dimensions and formulas 2210 drawing data 2242 enlarged pinions 2225, 2283–2286 external 2204 Fellows stub tooth systems 2216 fine-pitch 2214, 2239 finishing gear milling cutters 2229 formulas for basic dimensions 2336 full-depth, teeth 2210, 2221 gear milling cutters, series of metric module 2227 gear tooth parts 2211–2216 checking 2300 German Standard tooth form 2296 hob tip radius, maximum 2235 interference, avoiding 2225, 2227 internal 2204, 2249 internal arc thickness 2249 internal gear and pinion sizes 2249 internal gears rule 2250 involute curve properties 2209 lowest point of single tooth contact 2235 measurement of tooth with caliper 2226 measurement over pins 2300 measurement over wires 2310–2313 mesh with enlarged pinion 2233 milling cutters 2227 metric module 2227 minimum number of teeth 2233 module system 2296–2299 nonmetallic 2324 outside and root diameters 2217, 2227 pinion arc thickness 2249
materials 305–309 miscellaneous 344 moduli of elasticity 344 motor 344
music wire arbor diameters 349 nickel-base spring alloys 307–309 pins 1895–1896 shock stresses produced in helical 279 spiral 344 stainless spring steels 306–307
steels for 305–307 stresses 315, 316
lowest point of single tooth 2234–2238 ratio 2234, 2235
produced by shocks 279
tolerances
compression and extension 328–331 for torsion 337–344
torsion
bars 343 design 331–337 modulus 344–346
volute 343, 344 wire
diameters for 305 maximum working temperature 308 tensile strength 392
S pringback, sheet metal 1421 S pring pins
coiled type 1896 designation 1895 lengths and sizes 1895 materials 1895 slotted type 1895
S pring washers double coil rectangular section 1771 single coil square section 1772 S prockets chain transmission 2616 idler 2632 S pur gearing 2208 addendum modifications 2252 AGMA tolerances for fine pitch gears 2247 angular backlash 2248 ANSI Standard tooth forms 2210, 2214 to avoid undercutting by hob 2233 backlash 2242–2248, 2314 range 2243 basic dimensions 2216 blanks for fine pitch gears 2239 British Standard 2251 bronze and brass gears 2322 caliper measurement of tooth 2226 center distance 2234 variable 2216, 2218, 2220
pitch diameters, tabulated 2227 profile checker settings 2237 reduced gear 2225
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