Threads and Threading - Sportpilot.info

More documents

Recommendations

Info

1852 ANSI BUTTRESS THREADS H h n h Form of American National Standard 7°/45° Buttress Thread with 0.6p Basic Height of Thread Engagement .5h .5h r ;;;;;; ;;;;;; ;;;;;; ;;;;;; .5G he .5h F 7° h s (Basic) Pitch Dia. (E) Min Pitch Dia. of Internal Thread Max Pitch Dia. of External Thread Nominal (Basic) Major Dia. (D) H h n h .5h .5h ;;;;;; ;;;;;; r Fig. 2b. Flat Root External Thread Heavy Line Indicates Basic Form s Internal Thread s erance. However, the root truncation from a sharp V should not be greater than 0.0826p nor less than 0.0413p. Lead and Flank Angle Deviations for Class 2: The deviations in lead and flank angles may consume the entire tolerance zone between maximum and minimum material product limits given in Table 4. Diameter Equivalents for Variations in Lead and Flank Angles for Class 3: The combined diameter equivalents of variations in lead (including helix deviations), and flank f p .5G 90° Fig. 2a. Round Root External Thread Heavy Line Indicates Basic Form Internal Thread p Max Corner Rounding = r s f .5G s h e F f 45° 0.020p radius approx. (Optional) Minor Dia. of External Thread Minor Dia. of Internal Thread (Basic) Minor Dia. (K) Major Dia. of External Thread ;;;;;; ;;;;;; ;;;;;; ;;;;;; .5G h s .5h Max Corner Rounding = r (Basic) Pitch Dia. (E) Min Pitch Dia. of Internal Thread Max Pitch Dia. of External Thread Nominal (Basic) Major Dia. (D) Machinery's Handbook 27th Edition ;;;;;; ;;;;;; s F 7° 45° s F f S 0.020p Radius Approx. (Optional) (Basic) Minor S Dia. (K) Minor Dia. of External Thread Minor Dia. of Internal Thread Major Dia. of External Thread Copyright 2004, Industrial Press, Inc., New York, NY
ANSI BUTTRESS THREADS 1853 Table 3. American National Standard Buttress Inch Screw Thread Symbols and Form Thread Element Max. Material (Basic) Min. Material Pitch p Height of sharp-V thread H = 0.89064p Basic height of thread engagement h = 0.6p Root radius (theoretical)(see footnote a ) r = 0.07141p Min. r = 0.0357p Root truncation s = 0.0826p Min. s = 0.5; Max. s = 0.0413p Root truncation for flat root form s = 0.0826p Min. s = 0.5; Max. s = 0.0413p Flat width for flat root form S = 0.0928p Min. S = 0.0464p Allowance G (see text) Height of thread engagement h e = h − 0.5G Min. h e = Max. h e − [0.5 tol. on major dia. external thread + 0.5 tol. on minor dia. internal thread]. Crest truncation f = 0.14532p Crest width F = 0.16316p Major diameter D Major diameter of internal thread D n = D + 0.12542p Max. D n = Max. pitch dia.of internal thread + 0.80803p Major diameter of external thread D s = D − G Min. D s = D − G − D tol. Pitch diameter E Pitch diameter of internal thread (see footnote b ) Pitch diameter of external thread (see footnote c ) Minor diameter K E n = D − h Max. E n = D − h + PD tol. E s = D − h − G Min. E s = D − h − G − PD tol. Minor diameter of external thread K s = D − 1.32542p − G Min. K s = Min. pitch dia. of external thread − 0.80803p Minor diameter of internal thread K n = D − 2h Min. K n = D − 2h + K tol. Height of thread of internal thread h n = 0.66271p Height of thread ofexternal thread h s = 0.66271p Pitch diameter increment for lead ∆El Pitch diameter increment for 45° clearance flank angle Pitch diameter increment for 7° load flank angle Length of engagement L e Machinery's Handbook 27th Edition ∆Eα 1 ∆Eα 2 a Unless the flat root form is specified, the rounded root form of the external and internal thread shall be a continuous, smoothly blended curve within the zone defined by 0.07141p maximum to 0.0357p minimum radius. The resulting curve shall have no reversals or sudden angular variations, and shall be tangent to the flanks of the thread. There is, in practice, almost no chance that the rounded thread form will be achieved strictly as basically specified, that is, as a true radius. b The pitch diameter X tolerances for GO and NOT GO threaded plug gages are applied to the internal product limits for E n and Max. E n . c The pitch diameter W tolerances for GO and NOT GO threaded setting plug gages are applied to the external product limits for E s and Min. E s. Copyright 2004, Industrial Press, Inc., New York, NY
Page 1 and 2:
SCREW THREAD SYSTEMS 1725 Screw Thr
Page 3 and 4:
Machinery's Handbook 27th Edition O
Page 5 and 6:
Machinery's Handbook 27th Edition T
Page 7 and 8:
SCREW THREADS 1727 ISO Metric Threa
Page 9 and 10:
Machinery's Handbook 27th Edition S
Page 11 and 12:
Machinery's Handbook 27th Edition S
Page 13 and 14:
UNIFIED SCREW THREADS 1733 UN Inter
Page 15 and 16:
Machinery's Handbook 27th Edition U
Page 17 and 18:
Nominal Size, Threads per Inch, and
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
UNIFIED SCREW THREADS 1765 Table 4c
Page 47 and 48:
Page 49 and 50:
UNIFIED SCREW THREADS 1769 Table 5d
Page 51 and 52:
UNIFIED SCREW THREADS 1771 Table 5e
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Machinery's Handbook 27th Edition M
Page 59 and 60:
MINIATURE SCREW THREADS 1779 Table
Page 61 and 62:
;; ;;;; ;;;;;; ;;;;;;;; ;;;;;;;;;;
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
METRIC SCREW THREADS M PROFILE 1787
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Pitch P METRIC SCREW THREADS M PROF
Page 77 and 78:
Page 79 and 80:
Page 81 and 82: Basic Thread METRIC SCREW THREADS M
Page 83 and 84: METRIC SCREW THREADS M PROFILE 1803
Page 85 and 86: METRIC SCREW THREADS MJ PROFILE 180
Page 87 and 88: TRAPEZOIDAL METRIC THREADS 1807 Tol
Page 89 and 90: TRAPEZOIDAL METRIC THREADS 1809 Tab
Page 91 and 92: 120 140 160 180 110 130 150 170 Mac
Page 93 and 94: Machinery's Handbook 27th Edition T
Page 95 and 96: Pitch P BRITISH STANDARD ISO METRIC
Page 97 and 98: BRITISH STANDARD ISO METRIC SCREW T
Page 99 and 100: BRITISH STANDARD ISO METRIC SCREW T
Page 101 and 102: Nominal Diametera BRITISH STANDARD
Page 103 and 104: Nominal Diameter BRITISH STANDARD I
Page 105 and 106: Machinery's Handbook 27th Edition A
Page 109 and 110: Table 2b. Limiting Dimensions of AN
Page 113 and 114: CENTRALIZING ACME SCREW THREADS 183
Page 117 and 118: Machinery's Handbook 27th Edition C
Page 119 and 120: Table 8c. Limiting Dimensions of Am
Page 123 and 124: Machinery's Handbook 27th Edition S
Page 125 and 126: Table 14b. Limiting Dimensions for
Page 127 and 128: Nominal Sizes Table 15. Stub Acme S
Page 129 and 130: Machinery's Handbook 27th Edition B
Page 131: Thds. a per Inch ANSI BUTTRESS THRE
Page 135 and 136: ANSI BUTTRESS THREADS 1855 The majo
Page 137 and 138: Machinery's Handbook 27th Edition W
Page 139 and 140: WHITWORTH THREADS 1859 Table 3. Bri
Page 141 and 142: AMERICAN PIPE THREADS 1861 Table 1a
Page 143 and 144: AMERICAN PIPE THREADS 1863 guide fo
Page 147 and 148: DRYSEAL PIPE THREADS 1867 b PTF-SAE
Page 149 and 150: Machinery's Handbook 27th Edition B
Page 151 and 152: BRITISH PIPE THREADS 1871 British S
Page 155 and 156: HOSE COUPLING SCREW THREADS 1875 Th
show all

Threads and Threading - Sportpilot.info

Create successful ePaper yourself

Delete template?

Save as template?