Machinery’s Handbook, 31st Edition
Index
2941
O ctagon
O -rings
( continued )
size selection 2668 squeeze 2681 standards and designations 2666 inch-system O-rings 2667
area 77 moments of inertia 244 radius of gyration 244 section modulus 244
metric aerospace O-rings 2667 metric general-purpose O-rings 2667 stretch, cramping, and cross section reduction 2680 O scillation, center and radius of 238 O unces, avoirdupois, into grams 2858, 2859 O ut of roundness 706 O val head machine screws 1781–1783 O xidation effects on oil 2509 O xygen gas in welding 1581, 1605
O ffhand grinding 1332 O ffsets, CNC milling 1364 O hm’s law 2874 O il feeding and grooving of bearings 2404 O illess bearings 2442–2443 O ils 2499 additives 2506 application 2514 coating 1644 and compounds, machining 1246–1259 emulsifying or soluble 1247 mineral 1249–1250 sulfurized and chlorinated 1249–1250 film thickness in machine parts 2502 film thickness values 2502 lubricating 2503 mineral 2506 synthetic 2508 temperature effects 2509 tempering 476 O pen-end press 1464 O pen end wrench clearances 1688 O rbit 1471 O -rings 2666–2680 axial face seal glands 2681–2683
P
P ack hardening 482 P AG 2508 P alladium, plating 1645 P AM (plasma arc machining) 1348 P an head machine screws 1780 P an head miniature screw 1786, 1789 P AO 2508 P aper, bonding 2661 P appus-Guldinus rules 71 P arabola 57–58 area 80 center of gravity 231
calculations 2682 dimensions 2684 external pressure 2681 internal pressure 2681 PTFE O-rings 2683
constructing 70 directrix 57–58 focus 57–58
backup rings 2680 clearance gap 2679–2680 compounds 2689 dovetail grooves 2684
general equation 57 latus rectum 57–58 segment area 80 vertex 57–58
as drive belts 2688 fluorocarbon 2689 gland fill 2681
P araboloid
center of gravity 233 polar moment of inertia 254 radius of gyration 238 segment volume 93 volume 92 P arallel bars 749–756 airy points 753 calibration Type I, solid 749 Type II, ribbed 750 Type III, box parallel 751 Type IV, adjustable parallel 752 P arallel lines 45 drawing 67
gland surface quality 2688 groove width and slope 2680
installation 2688 lubrication 2688 materials 2690 nitrile 2689 overview 2666 radial (piston or rod) glands 2684–2688 floating piston glands 2687 piston glands 2685 radial gland calculations 2685 rod glands 2684 rotary motion radial seals 2687 silicone 2689 sizes, tables of 2668–2678
flatness (straightness) 753 height and width, matched sets 755 precision 753
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