Parker O-Ring Handbook.pdf

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Dynamic O-Ring Sealing 5-38 Parker O-Ring Handbook Design Table 5-3 — Floating Pneumatic Piston Ring Seal Gland Dimensions (Continued) A B-1 C G P O-Ring Bore Dia. Groove Dia. OD Groove Size Dimensions (Cylinder) (Piston) (Piston) Width Parker Mean +.004 +.000 +.000 +.004 Peripheral No. 2- I.D. ± W O.D. (Ref) -.000 -.004 -.004 -.000 Squeeze 433 5.475 .037 6.025 5.877 5.313 5.873 .148 434 5.600 .037 6.150 6.001 5.437 5.997 .149 435 5.725 .037 6.275 6.125 5.561 6.121 .150 436 5.850 .037 6.400 6.249 5.685 6.245 .151 437 5.975 .037 6.525 6.373 5.809 6.369 .152 438 6.225 .040 6.775 6.622 6.058 6.618 .153 439 6.475 .040 7.025 6.871 6.307 6.867 .154 440 6.725 .040 7.275 7.120 6.556 7.116 .155 441 6.975 .040 7.525 7.369 6.805 7.365 .156 442 7.225 .045 .275 7.775 7.618 7.054 7.614 .301 .157 443 7.475 .045 ±.006 8.025 7.867 7.303 7.863 .158 444 7.725 .045 8.275 8.116 7.552 8.112 .159 445 7.975 .045 8.525 8.365 7.801 8.361 .160 446 8.475 .055 9.025 8.864 8.300 8.860 .161 447 8.975 .055 9.525 9.363 8.799 9.359 .162 448 9.475 .055 10.025 9.862 9.298 9.858 .163 449 9.975 .055 10.525 10.361 9.797 10.357 .164 450 10.475 .060 11.025 10.860 10.296 10.856 .165 451 10.975 .060 11.525 11.359 10.795 11.355 .166 452 11.475 .060 12.025 11.858 11.294 11.854 .167 453 11.975 .060 12.525 12.357 11.793 12.353 .168 454 12.475 .060 13.025 12.856 12.292 12.852 .169 455 12.975 .060 13.525 13.355 12.791 13.351 .170 456 13.475 .070 14.025 13.854 13.290 13.850 .171 457 13.975 .070 14.525 14.353 13.789 14.349 .172 458 14.475 .070 15.025 14.852 14.288 14.848 .173 459 14.975 .070 15.525 15.351 14.787 15.347 .174 460 15.475 .070 16.025 15.850 15.286 15.846 .175 * These designs require considerable installation stretch. If assembly breakage is incurred use a compound having higher elongation or use a two-piece piston. Design Table 5-3: Floating Pneumatic Piston Ring Seal Gland Dimensions Guide For Design Table 5-4 If Desired Dimension is Known for Select Closest Dimension in Column OD of shaft B Throat Dia. D Design Guide 5-4: Guide For Design Table 5-4 Read Horizontally in Column A-1 D G A-1 B G To Determine Dimension for Groove Dia. for shaft Throat Dia. Groove width Groove Dia. for shaft OD of shaft Groove width Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 Fax: (859) 335-5128 www.parkerorings.com
5.31.4 O-Ring Glands for Rotary Seals Design Chart 5-4 provides the basis for calculating gland dimensions. For standard O-ring sizes, these dimensions have been calculated and are listed in Design Table 5-4. The procedures for the use of Design Table 5-4 are outlined in Design Guide 5-4 below. Pressure 16 Max. M Locate Seal as Close as Possible to Lubricating Fluid 1/2 E B Dia. = O-ring I.D. + .002 D Dia. (D Min. = B Max. + E Min.) Parker O-Ring Handbook After selecting gland dimensions, read horizontally to determine proper O-ring size number. Specify compound. Refer to the discussion on rotary seals earlier in this chapter for the selection of the proper compound The effective part number for an O-ring consists of both a size number and a compound number. Rotary O-Ring Seal Glands, 55.2 Bar (800 psi) Max. See Rotary Seal discussion in Dynamic Seals section before using this chart. A-1 Dia. (A-1 Min. = B Max. + 2L Min.) 0° to 5° Typ. Break Edges (0° Preferred) Approx. .005 Rad. 1/2 E 16 W W I.D. 32 R 32 G 32 Gland Detail F L Finishes are RMS values W Gland Depth F Groove Depth (Ref.) .003 Typ. Section W-W Note: Due to effect of centrifugal force, do not locate groove in shaft. Refer to Design Chart 5-4 (below) and Design Table 5-4 for dimensions. Rotary O-Ring Seal Glands, 55.2 Bar (800 psi) Max. (c) (Below 200 FPM, Use Design Chart 5-2) O-Ring Size Parker No. 2- 004 through 045 102 through 163 201 through 258 W Cross Section Nominal Actual 1/16 3/32 1/8 0.070 ±.003 0.103 ±.003 0.139 ±.004 Maximum Speed FPM (a) 200 to 1500 200 to 600 200 to 400 Squeeze % 0-11 1-8 1/2 0-7 L Gland Depth 0.065 to 0.067 0.097 to 0.099 0.133 to 0.135 G Groove Width 0.075 to 0.079 0.108 to 0.112 0.144 to 0.148 E (c) Diametral Clearance 0.012 to 0.016 0.012 to 0.016 0.016 to 0.020 Eccentricity Max (b) .005 Typ. W M Bearing Length Min. (c) 0.002 0.700 0.002 1.030 0.003 1.390 R Groove Radius 0.005 to 0.015 0.005 to 0.015 0.010 to 0.025 (a) Feet per minute = 0.26 X Shaft Diameter (inches) X rpm. (b) Total indicator reading between groove OD, shaft, and adjacent bearing surface. (c) If clearance (extrusion gap) must be reduced for higher pressures, bearing length M must be no less than the minimum fi gures given. Clearances given are based on the use of 80 shore durometer minimum O-ring for 55.2 Bar (800 psi) max. See Figure 3-2 for recommended clearances when pressures exceed 55.2 Bar (800 psi). Design Chart 5-4: Design Chart for Rotary O-Ring Seal Glands Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 Fax: (859) 335-5128 www.parkerorings.com Dynamic O-Ring Sealing 5-39
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aerospace climate control electrome
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50 th 50 th 50 th Anniversary Editi
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Section I - Introduction 1.0 How to
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1.4 Operation All robust seals are
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1.7.1 Static Seals In a truly stati
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1.11 Comparison of Common Seal Type
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Section II - Basic O-Ring Elastomer
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2.1.2 Rubber Rubber-like materials
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2.2.6 Chloroprene Rubber (CR) Chlor
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2.3 Compound Selection and Numberin
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O-ring seal, whether static or dyna
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Percent Compression 40% 30% 20% 10%
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Percent Compression 40% 30% 20% 10%
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Compression Set (% ) 100 Figure 2-1
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2.4.12 Thermal Effects All rubber i
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coeffi cient of expansion for that
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2.6 Aging Deterioration with time o
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A well-known rapid method for mater
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2.13.2 Temperature Temperature rang
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100 80 60 40 20 0 °C -50 °F -58 -
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misapplication might be greatly red
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c. Elongation Change Experience wil
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is possible to receive a part with
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Section III - O-Ring Applications 3
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3.1.2 Temperature Operating tempera
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O-Lube has some unique advantages.
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Parker Boss Kit Sizes Size Dimensio
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Recovery Percent of Original Delect
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3.9.5 Fuels for Automobile Engines
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Parker Seal produces a number of co
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3.9.16 Fungus-Resistant Compounds B
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3.9.17.2 Concentrates Containing Mi
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Where temperatures do not go below
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Permeability Rate - CC/SEC/ATM Effe
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Underwriters’ Laboratories Approv
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Parker Seal Elastic Drive Belt Comp
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Parker O-Ring Handbook Gas Permeabi
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Section IV - Static O-Ring Sealing
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The 4-3 and 4-7 design charts are o
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(e) 0° to 5° (Typ.) 63 Break Corn
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215 1.301 1.305 1.079 1.060 1.063 1
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Guide for Design Table 4-2 If Desir
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Parker O-Ring Handbook Gland Dimens
Page 93 and 94: Parker O-Ring Handbook Gland Dimens
Page 99 and 100: Dovetail Grooves It is often necess
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Page 103 and 104: F .031 .016 RAD K Parker O-Ring Han
Page 105 and 106: Gland Detail 0° to 5° Break Corne
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Page 117 and 118: For the same conditions, friction a
Page 119 and 120: 5.15 Spiral Failure A unique type o
Page 121 and 122: 5.16.1 Small Amount of Leakage 1. E
Page 123 and 124: Recommended dimensions for fl oatin
Page 125 and 126: for this service. See Section II, B
Page 127 and 128: 5.30.2 Calculation of Drive Belt Cr
Page 129 and 130: Parker O-Ring Handbook Gland Design
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Page 137 and 138: X Gland Detail 0° to 5° Break Cor
Page 141 and 142: 5.31.3 O-Ring Glands for Pneumatic
Page 143: Parker O-Ring Handbook Design Table
Page 147 and 148: Parker O-Ring Handbook Rotary O-Rin
Page 149 and 150: Parker O-Ring Handbook Rotary O-Rin
Page 151 and 152: Section VI - Back-Up Rings 6.1 Intr
Page 153 and 154: 6.4.2 Metal Non-Extrusion Rings In
Page 155 and 156: Parker Parbak 8-Series Dimensions (
Page 157 and 158: Parker Parbak 8-Series Dimensions (
Page 159 and 160: Back-Up Rings Cross Reference (Cont
Page 161 and 162: Parker O-Ring Handbook Section VII
Page 163 and 164: COMPOUND COMPATIBILITY RATING 1 - S
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COMPOUND COMPATIBILITY RATING 1 - S
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Section VIII - Specifi cations 8.1
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Military Fluid Specifi cation Descr
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AMS (1) and NAS (2) Rubber Specifi
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Parker O-Ring Handbook Compound Sel
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Section IX Sizes Parker Series 2-XX
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Table 9-1: Parker Series 2-XXX O-Ri
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Parker O-Ring Handbook Parker Serie
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Parker Series 5-XXX O-Ring Sizes (C
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Parker Series 5-XXX O-Ring Sizes (C
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Series 5-XXX Locator Table Size I.D
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Parker O-Ring Handbook Inside Diame
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JIS B2401 Sizes JIS Thickness Inner
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Parker O-Ring Handbook Unusual Size
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Parker O-Ring Handbook Unusual Size
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Section X - Appendix 10.1 O-Ring Fa
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10.1.1.2 Extrusion and Nibbling Ext
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10.1.1.6 Installation Damage Many O
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Parker Seal also has the capability
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10.3 Glossary of Seal and Rubber Te
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Flash: Excess rubber left around ru
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(b) REP (Roentgen equivalent-physic
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10.4 Abbreviations ACM Polyacrylate
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Compound Shrinkage Class Compound N
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Table 10-8: Dimensions From Standar
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Parker O-Ring Handbook Dimensions F
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Appendix 10-32 Parker O-Ring Handbo
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Index — A — Abbreviations. . .
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International O-Ring Standards and
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Offer of Sale 1. Terms and Conditio
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Parker’s Total inPHorm Take the g
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