Parker O-Ring Handbook.pdf

More documents

Recommendations

Info

Appendix 10-16 10.5 Standard Shrinkage All rubber materials shrink during molding, resulting in fi nished parts that are smaller than the mold cavity dimensions. “Standard” mold shrinkage is called “AN” shrinkage. Compounds that are manufactured from unusual formulations or polymers will have different shrinkage rates associated with them. Some materials shrink LESS than the standard (AN) nitrile would in the same mold. These materials have been given an arbitrary CLASS(-1) shrinkage designation. Still other materials have shrinkage rates that are greater than the standard (AN) shrink rate. These progressively larger shrinkage rates have been arbitrarily called CLASS I through CLASS VI. Table 10-7 lists the shrinkage class for some of our more popular compounds. Table 10-8 lists all the possibilities for dimensions for Parker’s 2-xxx and 3-xxx series O-ring sizes depending upon the shrinkage of the material that is chosen. In applications that require materials with shrinkage more or less than the standard (AN) rate, the O-ring gland dimensions may have to be modifi ed to provide the desired squeeze. If the assembled inside diameter of the O-ring is fi xed, a highshrink compound will be stretched more than a standard material, and this will reduce the O-ring cross-section further. See Figure 3-3 to observe the effect of this stretch on the “W” Dimension. When O-rings of a high-shrink compound are required for use in standard (AN) or special dimensions, molds can be made to compensate for the shrinkage, but at special mold costs. It should be noted that many factors affect the shrinkage of rubber compounds, including method (injection, compression, transfer), time, temperature, and/or pressure, to name a few. As new manufacturing techniques for O-rings are developed, there will be the possibility that shrinkage rates of our compounds will change (or shift) correspondingly. For this reason, consultation with the factory is imperative prior to specifying a particular Parker compound. Parker O-Ring Handbook 10.5.1 Procedure for O-Rings Molded of Compounds Having Non-Standard Shrinkage Rates Determine the Finished Dimension and Tolerances as Follows: 2- and 3- Sizes 1. Locate the compound in Table 10-7 and note the shrinkage class listed. 2. Use this shrinkage class and the O-ring size number to fi nd the dimensions and tolerances in Table 10-8. Example: O-ring size 2-150, Compound S0355-75 (1) Shrinkage Class IV (Table 10-7) (2) Dimensions and Tolerances 2.816" ± .032” I.D. X .101" ±.004 W. (Table 10-8) 5- Sizes 1. Locate the compound in Table 10-7, and note the shrinkage class listed. 2. Find the standard AN dimensions and tolerances in Table 9-3. (If the I.D. is not known, refer to Table 9-4 fi rst.) 3. Find the actual I.D. and cross-section by multiplying the standard I.D. and W. dimensions by the dimension factor from Table 10-10. 4. Find the I.D. tolerance by multiplying the standard I.D. by the tolerance factor from Table 10-10 and adding the result to the standard tolerance. 5. Find the actual cross-section tolerance in Table 10-9. Example: O-ring Size 5-547, Compound S0355-75 (1) Shrinkage Class III (Table 10-7) (2) Standard I.D. = 21.564 ± .100 W. = .139 ± .004 (3) Actual I.D. = 21.564 X .984 = 21.219 Actual W. = .139 X .984 = .137 (4) I.D. Tolerance = 21.564 X .0036 + .100 = ± .178 (5) W. Tolerance ± .005 Actual Dimensions and Tolerance = 21.219" ± .178" I.D. X .137" ± .005" W. Note: Follow the procedure given for the 5-series to fi nd dimensions and tolerances for special sizes for which standard shrinkage tooling exists. Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 Fax: (859) 335-5128 www.parkerorings.com
Compound Shrinkage Class Compound Number Shrinkage Class 47-071 AN N0103-70 AN C0267-50 AN N0287-70 AN N0299-50 I N0304-75 AN S0317-60 II S0355-75 IV S0383-70 II N0406-60 I S0455-70 V S0469-40 III N0497-70 -1 N0506-65 I N0507-90 -1 N0508-75 -1 E0515-80 AN C0518-60 AN N0525-60 AN E0540-80 AN Parker O-Ring Handbook * Fluorocarbon compounds that have CLASS III shrinkage are manufactured using special compensated molds that will give nominal dimensions equivalent to the corresponding standard AN size. However, the tolerance spread will be that of a CLASS III shrinkage material unless otherwise specifi ed. ** Run on Compensated Tooling. Note: The O-Ring Division is constantly developing new materials to solve customer needs. For the most up-to-date information, contact the O-Ring Division directly. Table 10-7: Compound Shrinkage Class Compound Shrinkage Number Class N0545-40 I N0552-90 -1 C0557-70 AN S0595-50 II N0602-70 AN E0603-70 AN S0604-70 I B0612-70 I S0613-60 AN S0614-80 AN P0642-70 2 E0652-90 -1 E0667-70 I N0674-70 AN V0680-70* II E0692-75 AN V0709-90* III E0740-75 AN V0747-75* III E0803-70 I Compound Shrinkage Number Class C0873-70 AN V0884-75* III E0893-80 AN V0894-90* II C0944-70 -1 N0951-75 AN E0962-90 3 E1028-70 AN N1090-85 I LM159-70 IV C1124-70 AN LM158-60 IV LM160-80 II L1186-80 II V1164-75* III V1226-75* III VM835-75 III V1289-75 III Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 Fax: (859) 335-5128 www.parkerorings.com Appendix 10-17
Page 1 and 2:
aerospace climate control electrome
Page 3 and 4:
50 th 50 th 50 th Anniversary Editi
Page 5 and 6:
Section I - Introduction 1.0 How to
Page 7 and 8:
1.4 Operation All robust seals are
Page 9 and 10:
1.7.1 Static Seals In a truly stati
Page 11 and 12:
1.11 Comparison of Common Seal Type
Page 13 and 14:
Section II - Basic O-Ring Elastomer
Page 15 and 16:
2.1.2 Rubber Rubber-like materials
Page 17 and 18:
2.2.6 Chloroprene Rubber (CR) Chlor
Page 19 and 20:
2.3 Compound Selection and Numberin
Page 21 and 22:
O-ring seal, whether static or dyna
Page 23 and 24:
Percent Compression 40% 30% 20% 10%
Page 25 and 26:
Percent Compression 40% 30% 20% 10%
Page 27 and 28:
Compression Set (% ) 100 Figure 2-1
Page 29 and 30:
2.4.12 Thermal Effects All rubber i
Page 31 and 32:
coeffi cient of expansion for that
Page 33 and 34:
2.6 Aging Deterioration with time o
Page 35 and 36:
A well-known rapid method for mater
Page 37 and 38:
2.13.2 Temperature Temperature rang
Page 39 and 40:
100 80 60 40 20 0 °C -50 °F -58 -
Page 41 and 42:
misapplication might be greatly red
Page 43 and 44:
c. Elongation Change Experience wil
Page 45 and 46:
is possible to receive a part with
Page 47 and 48:
Section III - O-Ring Applications 3
Page 49 and 50:
3.1.2 Temperature Operating tempera
Page 51 and 52:
O-Lube has some unique advantages.
Page 53 and 54:
Parker Boss Kit Sizes Size Dimensio
Page 55 and 56:
Recovery Percent of Original Delect
Page 57 and 58:
3.9.5 Fuels for Automobile Engines
Page 59 and 60:
Parker Seal produces a number of co
Page 61 and 62:
3.9.16 Fungus-Resistant Compounds B
Page 63 and 64:
3.9.17.2 Concentrates Containing Mi
Page 65 and 66:
Where temperatures do not go below
Page 67 and 68:
Permeability Rate - CC/SEC/ATM Effe
Page 69 and 70:
Underwriters’ Laboratories Approv
Page 71 and 72:
Parker Seal Elastic Drive Belt Comp
Page 73 and 74:
Parker O-Ring Handbook Gas Permeabi
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Section IV - Static O-Ring Sealing
Page 83 and 84:
The 4-3 and 4-7 design charts are o
Page 85 and 86:
(e) 0° to 5° (Typ.) 63 Break Corn
Page 87 and 88:
215 1.301 1.305 1.079 1.060 1.063 1
Page 89 and 90:
Guide for Design Table 4-2 If Desir
Page 91 and 92:
Parker O-Ring Handbook Gland Dimens
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Dovetail Grooves It is often necess
Page 101 and 102:
Parker O-Ring Handbook This type of
Page 103 and 104:
F .031 .016 RAD K Parker O-Ring Han
Page 105 and 106:
Gland Detail 0° to 5° Break Corne
Page 107 and 108:
Section V - Dynamic O-Ring Sealing
Page 109 and 110:
When a cylinder rod extends out int
Page 111 and 112:
It can be clearly seen from Figure
Page 113 and 114:
5.11 Friction Friction, either brea
Page 115 and 116:
5-9 Dynamic O-Ring Sealing Parker H
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
Page 131 and 132:
124 125 126 127 128 129 130 131 132
Page 133 and 134:
240 241 242 243 244 245 246 247 325
Page 135 and 136:
448 449 450 451 452 453 454 455 456
Page 137 and 138:
X Gland Detail 0° to 5° Break Cor
Page 139 and 140:
Page 141 and 142:
5.31.3 O-Ring Glands for Pneumatic
Page 143 and 144:
Parker O-Ring Handbook Design Table
Page 145 and 146:
5.31.4 O-Ring Glands for Rotary Sea
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
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216: COMPOUND COMPATIBILITY RATING 1 - S
Page 217 and 218: Section VIII - Specifi cations 8.1
Page 219 and 220: Military Fluid Specifi cation Descr
Page 221 and 222: AMS (1) and NAS (2) Rubber Specifi
Page 223 and 224: Parker O-Ring Handbook Compound Sel
Page 225 and 226: Section IX Sizes Parker Series 2-XX
Page 227 and 228: Table 9-1: Parker Series 2-XXX O-Ri
Page 229 and 230: Parker O-Ring Handbook Parker Serie
Page 237 and 238: Parker Series 5-XXX O-Ring Sizes (C
Page 239 and 240: Parker Series 5-XXX O-Ring Sizes (C
Page 241 and 242: Series 5-XXX Locator Table Size I.D
Page 243 and 244: Parker O-Ring Handbook Inside Diame
Page 245 and 246: JIS B2401 Sizes JIS Thickness Inner
Page 247 and 248: Parker O-Ring Handbook Unusual Size
Page 249 and 250: Parker O-Ring Handbook Unusual Size
Page 251 and 252: Section X - Appendix 10.1 O-Ring Fa
Page 253 and 254: 10.1.1.2 Extrusion and Nibbling Ext
Page 255 and 256: 10.1.1.6 Installation Damage Many O
Page 257 and 258: Parker Seal also has the capability
Page 259 and 260: 10.3 Glossary of Seal and Rubber Te
Page 261 and 262: Flash: Excess rubber left around ru
Page 263 and 264: (b) REP (Roentgen equivalent-physic
Page 265: 10.4 Abbreviations ACM Polyacrylate
Page 269 and 270: Table 10-8: Dimensions From Standar
Page 277 and 278: Parker O-Ring Handbook Dimensions F
Page 283 and 284: Appendix 10-32 Parker O-Ring Handbo
Page 285 and 286: Index — A — Abbreviations. . .
Page 287 and 288: International O-Ring Standards and
Page 289 and 290: Offer of Sale 1. Terms and Conditio
Page 291 and 292: Parker’s Total inPHorm Take the g
show all

Parker O-Ring Handbook.pdf

Create successful ePaper yourself

Delete template?

Save as template?