1、MS16626C 14 March 2012 SUPERSEDING MS16626B 26 January 1990 DETAIL SPECIFICATION SHEET RING, RETAINING, EXTERNAL, INVERTED (TAPERED SECTION TYPE) This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described
2、herein shall consist of this specification sheet and procurement specification MIL-R-21248. FIGURE 1. RING, RETAINING. INCH-POUND AMSC N/A FSC 5325 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I DIMENSIONS. S SHAFT (REF) D FREE E LARGE SECTI
3、ON HEIGHT J SMALL SECTION HEIGHT T 1/ THICKNESS G W WIDTH K 3/ C 4/ R 5/ CH 5/ RECOMMENDED GROOVE (REF) OF RETAINED PART (REF) INCH MM BASIC TOL. BASIC TOL. BASIC TOL. BASIC TOL. BASIC TOL. BASIC TOL. MIN. MAX. MAX. .500 12.7 .461 .080 .041 .035 .460 .002 .040 .640 .670 .051 .032 .562 14.3 .521 .088
4、 .004 .043 .004 .035 .530 .004 .040 .715 .750 .057 .036 .594 15.1 .550 .092 .046 .035 .559 FIM 2/ .040 .750 .790 .059 .037 .625 15.9 .579 .096 .048 .035 .588 .040 .790 .830 .062 .039 .672 17.1 .621 .102 .051 .035 .631 .040 .850 .890 .063 .041 .688 17.5 .635 .104 .052 .042 .646 .047 .870 .910 .066 .0
5、42 .750 19.0 .693 +.005 .112 .056 .042 .704 .047 +.003 .945 .990 .071 .045 .781 19.8 .722 -.010 .116 .057 .042 .733 .047 -.000 .980 1.040 .073 .046 .812 20.6 .751 .120 .005 .060 .005 .042 .002 .762 .003 .047 1.020 1.080 .076 .048 .875 22.2 .810 .128 .064 .042 .821 .004 .047 1.095 1.150 .080 .051 FIM
6、2/ .938 23.8 .867 .136 .068 .042 .882 .047 1.170 1.230 .086 .054 .984 25.0 .923 .144 .072 .042 .926 .047 1.240 1.300 .091 .057 1.000 25.4 .923 .144 .072 .042 .940 .047 1.250 1.310 .091 .057 1.062 27.0 .982 .147 .073 .050 .998 .056 1.310 1.380 .092 .058 1.125 28.6 1.041 .150 .075 .050 1.059 .056 1.38
7、0 1.450 .093 .059 1.188 30.2 1.098 .153 .076 .050 1.118 .056 1.450 1.520 .094 .059 1.250 31.7 1.156 .157 .079 .050 1.176 .056 +.004 1.520 1.590 .096 .060 1.312 33.3 1.214 +.010 .161 .080 .050 1.232 .056 -.000 1.580 1.660 .097 .061 1.375 34.9 1.272 -.015 .165 .006 .082 .006 .050 1.291 .004 .056 1.650
8、 1.730 .098 .061 1.438 36.5 1.333 .169 .085 .050 1.350 .005 .056 1.715 1.800 .100 .063 1.500 38.1 1.387 .173 .086 .050 1.406 FIM 2/ .056 1.775 1.870 .100 .063 MS16626C2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. DIMENSIONS - Continued S
9、SHAFT (REF) D FREE E LARGE SECTION HEIGHT J SMALL SECTION HEIGHT T 1/ THICKNESS G W WIDTH K 3/ C 4/ R 5/ CH 5/ RECOMMENDED GROOVE (REF) OF RETAINED PART (REF) INCH MM BASIC TOL. BASIC TOL. BASIC TOL. BASIC TOL. BASIC TOL. BASIC TOL. MIN. MAX. MAX. 1.562 39.7 1.446 .178 .006 .089 .006 .062 1.468 .068
10、 1.850 1.950 .104 .066 1.750 44.4 1.637 +.013 .196 .098 .062 1.650 .068 2.070 2.180 .116 .073 1.772 45.0 1.637 -.020 .196 .098 .062 1.669 .068 +.004 2.090 2.200 .116 .073 1.812 46.0 1.675 .199 .100 .062 1.708 .005 .068 -.000 2.130 2.240 .117 .074 .005 1.969 50.0 1.819 .212 .106 .062 1.857 FIM 2/ .06
11、8 2.310 2.430 .124 .078 2.000 50.8 1.850 .216 .108 .062 1.886 .068 2.350 2.470 .127 .080 2.125 54.0 1.993 .229 .117 .078 2.003 .086 2.490 2.620 .133 .084 2.156 54.8 1.993 +.015 .229 .117 .078 .003 2.032 .086 2.520 2.630 .133 .084 2.500 63.5 2.313 -.025 .259 .007 .130 .007 .078 2.360 .086 2.910 3.050
12、 .151 .095 2.875 73.0 2.659 .290 .145 .093 2.721 .006 .103 +.005 3.330 3.490 .170 .107 3.156 80.1 2.920 +.020 .316 .159 .093 2.986 .006 .103 -.000 3.650 3.820 .185 .116 3.500 88.8 3.237 -.030 .345 .008 .173 .008 .109 3.316 FIM 2/ .120 4.030 4.220 .202 .127 3.938 100.0 3.642 .368 .183 .109 3.734 .120
13、 4.500 4.710 .212 .133 1/ T - THICKNESS “T” APPLIES TO UNPLATED RINGS. FOR CORROSION RESISTANT STEEL AND PLATED RINGS, +.002 SHOULD BE ADDED TO THE MAXIMUM TOLERANCE, i.e. .002 SHOULD BE +.004/-.002. 2/ FIM - (FULL INDICATOR MOVEMENT) IS THE MAXIMUM ALLOWABLE DEVIATION OF CONCENTRICITY BETWEEN THE G
14、ROOVE AND THE SHAFT. 3/ K - MAXIMUM DIAMETER WHEN THE RING IS PROPERLY SEATED IN THE GROOVE. (DESIGN REFERENCE DIMENSION). 4/ C - ACTUAL CLEARANCE DIAMETER WHEN THE RING IS SPRUNG OVER THE SHAFT, PRIOR TO INSTALLATION INTO THE GROOVE. (DESIGN REFERENCE DIMENSION). 5/ R AND CH - RADII OR CHAMFERS ALL
15、OWABLE ON PARTS TO BE RETAINED BY THE RINGS. THRUST LOADS OF RINGS, RETAINING PARTS WITH CORNER RADII OR CHAMFERS ARE TABULATED ON PAGE 7.MS16626C3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-REQUIREMENTS: 1. CLASSIFICATION: RETAINING RINGS FURNIS
16、HED UNDER THIS STANDARD SHALL BE TYPE 1, CLASS 4 OF THE PROCUREMENT SPECIFICATION. 2. MATERIAL: a. CARBON SPRING STEEL,GRADE 1060 THRU 1095 (UNS G10600 THRU G10950) IN ACCORDANCE WITH ASTM A568/A568M OR ASTM A684/A684M. b. CORROSION RESISTANT STEEL IN ACCORDANCE WITH AMS 5520 (UNS S15700). c. BERYLL
17、IUM COPPER, ALLOY NUMBER 170 (UNS C17000) OR ALLOY NUMBER 172 (UNS C17200) IN ACCORDANCE WITH ASTM B194. 3. HARDNESS: TABLE II. HARDNESS. SHAFT (REF) CARBON STEEL CORROSION RESISTANT STEEL BERYLLIUM COPPER .500 TO .672 50-55 HRC 63-69.5 HR30N 56.5-62 HR30N .688 TO .812 48-53 HRC 63-69.5 HR30N 56.5-6
18、2 HR30N .875 TO 1.500 48-53 HRC 44-51 HRC 37-43 HRC 1.562 TO 3.437 46-51 HRC 44-51 HRC 37-43 HRC 3.500 AND OVER 44-49 HRC 44-51 HRC 37-43 HRC 4. PROTECTIVE FINISH OR TREATMENT: a. CARBON STEEL SHALL BE AS SPECIFIED (SEE TABLE III OR IV): 1. CADMIUM PLATE IN ACCORDANCE WITH SAE AMS-QQ-P-416, TYPE II,
19、 CLASS 3 OR ASTM B696, TYPE II, CLASS 5. 2. ZINC COAT IN ACCORDANCE WITH ASTM B633, TYPE II, CLASS Fe/Zn 5 OR ASTM B695, TYPE II, CLASS 5. 3. PHOSPHATE COAT IN ACCORDANCE WITH MIL-DTL-16232, TYPE Z, CLASS 2. b. CORROSION RESISTANT STEEL SHALL BE CLEANED, DESCALED AND PASSIVATED IN ACCORDANCE WITH SA
20、E AMS2700. 5. PART NUMBER: THE BASIC MS PART NUMBER IS FOLLOWED BY A DASH NUMBER TAKEN FROM TABLE III AND IV. EXAMPLE: MS16626-1100 IS THE PART NUMBER FOR A CARBON STEEL, CADMIUM PLATED, INTERNAL, INVERTED RETAINING RING FOR USE IN A 1.000 SHAFT DIAMETER. MS16626C4 Provided by IHSNot for ResaleNo re
21、production or networking permitted without license from IHS-,-,-TABLE III. DASH NUMBERS FOR MS16626. S SHAFT (REF) 1/ CARBON STEEL CADMIUM PLATE 1/ CARBON STEEL ZINC COAT 1/ CARBON STEEL PHOSPHATE COAT STEEL CORROSION RESISTANT 1/ BERYLLIUM COPPER DASH NO. DASH NO. DASH NO. DASH NO. DASH NO. .500 -1
22、050 -2050 -3050 -4050 -5050 .562 -1056 -2056 -3056 -4056 -5056 .594 -1059 -2059 -3059 -4059 -5059 .625 -1062 -2062 -3062 -4062 -5062 .672 -1067 -2067 -3067 -4067 -5067 .688 -1068 -2068 -3068 -4068 -5068 .750 -1075 -2075 -3075 -4075 -5075 .781 -1078 -2078 -3078 -4078 -5078 .812 -1081 -2081 -3081 -408
23、1 -5081 .875 -1087 -2087 -3087 -4087 -5087 .935 -1093 -2093 -3093 -4093 -5093 .984 -1098 -2098 -3098 -4098 -5098 1.000 -1100 -2100 -3100 -4100 -5100 1.062 -1106 -2106 -3106 -4106 -5106 1.125 -1112 -2112 -3112 -4112 -5112 1.188 -1118 -2118 -3118 -4118 -5118 1.250 -1125 -2125 -3125 -4125 -5125 1.312 -
24、1131 -2131 -3131 -4131 -5131 1.375 -1137 -2137 -3137 -4137 -5137 1.438 -1143 -2143 -3143 -4143 -5143 1.500 -1150 -2150 -3150 -4150 -5150 1.562 -1156 -2156 -3156 -4156 -5156 1.750 -1175 -2175 -3175 -4175 -5175 1.772 -1177 -2177 -3177 -4177 -5177 1.812 -1181 -2181 -3181 -4181 -5181 1.969 -1196 -2196 -
25、3196 -4196 -5196 2.000 -1200 -2200 -3200 -4200 -5200 2.125 -1212 -2212 -3212 -4212 2.156 -1215 -2215 -3215 -4215 2.500 -1250 -2250 -3250 -4250 2.875 -1287 -2287 -3287 -4287 3.156 -1315 -2315 -3315 -4315 3.500 -1350 -2350 -3350 -4350 3.938 -1393 -2393 -3393 -4393 1/ SUBSTITUTE CORROSION RESISTANT STE
26、EL WHEN USED IN FOOD PROCESSING MACHINERY, OR IN FUEL OR LUBRICATION SYSTEMS, OR WHEN USED AT TEMPERATURES OVER 450F (233C). 5 MS16626C Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE IV. SUBSTITUTION TABLE (CROSS REFERENCE OF PART NUMBERS). IN
27、ACTIVE SUBSTITUTE SUBSTITUTE SUBSTITUTE S SHAFT (REF) CARBON STEEL 1/ CARBON STEEL CADMIUM PLATE 1/ CARBON STEEL ZINC COAT 1/ CARBON STEEL PHOSPHATE COAT MS16626 MS16626 MS16626 MS16626 .500 -50 -1050 -2050 -3050 .562 -56 -1056 -2056 -3056 .594 -59 -1059 -2059 -3059 .625 -62 -1062 -2062 -3062 .672 -
28、67 -1067 -2067 -3067 .688 -68 -1068 -2068 -3068 .750 -75 -1075 -2075 -3075 .781 -78 -1078 -2078 -3078 .812 -81 -1081 -2081 -3081 .875 -87 -1087 -2087 -3087 .935 -93 -1093 -2093 -3093 .984 -98 -1098 -2098 -3098 1.000 -100 -1100 -2100 -3100 1.062 -106 -1106 -2106 -3106 1.125 -112 -1112 -2112 -3112 1.1
29、88 -118 -1118 -2118 -3118 1.250 -125 -1125 -2125 -3125 1.312 -131 -1131 -2131 -3131 1.375 -137 -1137 -2137 -3137 1.438 -143 -1143 -2143 -3143 1.500 -150 -1150 -2150 -3150 1.562 -156 -1156 -2156 -3156 1.750 -175 -1175 -2175 -3175 1.772 -177 -1177 -2177 -3177 1.812 -181 -1181 -2181 -3181 1.969 -196 -1
30、196 -2196 -3196 2.000 -200 -1200 -2200 -3200 2.125 -212 -1212 -2212 -3212 2.156 -215 -1215 -2215 -3215 2.500 -250 -1250 -2250 -3250 2.875 -287 -1287 -2287 -3287 3.156 -315 -1315 -2315 -3315 3.500 -350 -1350 -2350 -3350 3.938 -393 -1393 -2393 -3393 1/ SUBSTITUTE CORROSION RESISTANT STEEL WHEN USED IN
31、 FOOD PROCESSING MACHINERY, OR IN FUEL OR LUBRICATION SYSTEMS, OR WHEN USED AT TEMPERATURES OVER 450F (233C). 6 MS16626CProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTES: 1. DIMENSIONS IN INCHES, UNLESS OTHERWISE SPECIFIED. 2. IN THE EVENT OF A C
32、ONFLICT BETWEEN THE TEXT OF THIS STANDARD AND THE REFERENCES CITED HEREIN, THE TEXT OF THIS STANDARD SHALL TAKE PRECEDENCE. 3. RECOMMENDED DESIGN LIMITATIONS AND USAGE: (a) INTENDED USE- TO PROVIDE UNIFORM PROTRUDING SHOULDERS FOR POSITIONING AND RETAINING MACHINE COMPONENTS IN HOUSINGS (BORES). TAP
33、ERED DESIGN PRINCIPLE PERMITS RINGS TO MAINTAIN PRACTICTICALLY CONSTANT CIRCULARITY, AND FIT SECURELY AGAINST BOTTOM OF GROOVE, COUNTERACTING CONSIDERABLE CENTRIFUGAL FORCE (SEE CHART BELOW). ESPECIALLY SUITED FOR LOCATING AND RETAINING MACHINE PARTS HAVING CURVED ABUTTING SURFACES. THE USE OF THE F
34、OLLOWING FORMULAS ARE BASED ON THE FACT THAT THE RING MATERIAL WILL NOT FAIL IN COMPRESSION. LIMITATION ON USE THE FOLLOWING FORMULAS ARE NOT TO BE USED FOR BRITTLE MATERIALS SUCH AS CAST IRON, ETC. WARNING: RINGS SHOULD NOT BE OVER EXPANDED DURING INSTALLATION SINCE THIS WILL LEAD TO RING FAILURE.
35、IF RING HAS PLAY BETWEEN THE GROOVE DIAMETER AND THE INSIDE RING DIAMETER THIS INDICATES THAT THE RING HAS BEEN OVER EXPANDED, (PROVIDING THE GROOVE DIAMETER HAS BEEN MACHINED TO RECOMMENDED DIMENSIONS). FOR APPROXIMATE SAFETY RPM LIMITS SEE TABLE V. TABLE V. APPROXIMATE SAFETY RPM LIMITS. SHAFT (IN
36、CHES) .500 1 2 3 4 CARBON STEEL AND CORROSION RESISTANT STEEL RPM LIMIT 40,000 20,000 10,000 6,700 5,000 BERYLLIUM COPPER RPM LIMIT 25,000 13,000 6,400 (b) ALLOWABLE THRUST LOAD CAPACITY OF THE RINGS, ABUTTING COMPONENTS TO HAVE SHARP CORNERS = P = ALLOWABLE THRUST LOAD (POUNDS) S = SHAFT DIAMETER (
37、INCHES) P = 2 STX T = RING THICKNESS (INCHES) 3 F WHERE: X = ULTIMATE SHEAR STRENGTH OF THE RING MATERIAL (PSI) 1/ F = FACTOR OF SAFETY A FACTOR OF SAFETY, F=4, IS RECOMMENDED, SINCE THE RING UNDER LOAD IS SUBJECTED NOT ONLY TO PURE SHEAR STRESSES, BUT ALSO TO BENDING STRESSES. (c) ALLOWABLE LOAD CA
38、PACITY OF GROOVE WALL = P = ALLOWABLE COMPRESSION LOAD (POUNDS) S = SHAFT DIAMETER (INCHES) P = 1 SdY. d = GROOVE DEPTH (INCHES) 2 F WHERE: Y = YIELD STRENGTH IN COMPRESSION OF THE GROOVE MATERIAL (PSI) F = FACTOR OF SAFETY TO INSURE A SAFE WORKING LOAD, A SAFETY FACTOR, F = 2, IS RECOMMENDED. (d) M
39、INIMUM DISTANCE BETWEEN OUTER GROOVE WALL AND END OF SHAFT = Z = MINIMUM DISTANCE BEWTWEEN OUTER GROOVE WALL Z = 3d AND END OF SHAFT (INCHES) WHERE: d = GROOVE DEPTH (INCHES) 7 MS16626C Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS16626C (e) DIF
40、FERENTIAL ROTATION = THE CONDITIONS UNDER WHICH A RETAINING RING MAY BE USED WHEN ADJACENT PARTS ROTATE RELATIVE TO IT, FALL INTO TWO CATEGORIES: (1) WHERE NO THRUST IS EXERTED BY ADJACENT PART: IN THIS CASE, DIFFERENTIAL ROTATION OF RING AND ADJACENT PART CREATES NO ELEMENT OF RISK IN THE APPLICATI
41、ON OF THE RINGS BECAUSE NO FRICTIONAL TORQUE IS EXERTED BY THE MACHINE PART ON THE RING. (2) CONSIDERATION MUST BE GIVEN TO THE MAGNITUDE OF THE THRUST INVOLVED. THE FRICTION MOMENT MAY NOT EXCEED THE BENDING MOMENT, WHICH THE RING CAN TOLERATE WITHOUT RELEASING ITS PRESSURE AGAINST THE BOTTOM OF TH
42、E GROOVE, FORMULATED AS FOLLOWS: fPN sTE218 OR P = ALLOWABLE THRUST LOAD EXERTED BY ADJACENT PART (POUNDS) f = COEFFICIENT OF FRICTION WHERE: s = WORKING STRESS OF RING UNDER MAXIMUM EXPANSION (PSI)2/ T = RING THICKNESS (INCHES) P sTE2E = GREATEST WIDTH SECTION OF RING (INCHES) f18N N = NEUTRAL RING
43、 DIAMETER (INCHES) = FREE DIAMETER MINUS 3/4 E DIMENSION IN SUCH CASES WHERE DIFFERENTIAL ROTATION OCCURS, THE CALCULATION SHOULD BE BASED ON THE MAXIMUM POSSIBLE VALUE OF THE COEFFICIENT OF FRICTION. 1/ X = 150,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS OF CARBON STEEL OR CORROSION RESISTANT STEEL.
44、X = 110,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS OF BERYLLIUM COPPER. 2/ S = 250,000 PSI WORKING STRESS FOR RINGS OF CARBON STEEL OR CORROSION RESISTANT STEEL. S = 180,000 PSI WORKING STRESS FOR RINGS OF BERYLLIUM COPPER (f) IMPACT CAPACITY OF RING OR GROOVE WALL = IR = FOR THE RING (INCH POUNDS) A
45、BUTTING COMPONENTS TO HAVE SHARP CORNERS IG = FOR THE GROOVE (INCH POUNDS). P = ALLOWABLE THRUST LOAD OF RING OR GROOVE (POUNDS) T = RING THICKNESS (INCHES) WHERE: IG = IMPACT CAPACITY OF GROOVE WALL (INCH POUNDS) d = GROOVE DEPTH (INCHES) IR = IMPACT CAPACITY OF RING (INCH POUNDS) (g) LOAD CAPACITY
46、, WITH THE RETAINED PART RADIUSED OR CHAMFERED = WHEN THE RADIUS OR CHAMFER OF THE RETAINED PART DOES NOT EXCEED THE MAXIMUM RADIUS ALLOWED FOR THE BOTTOM OF THE RING GROOVE, THE LESSER LOAD CAPACITY COMPUTED FROM THE FORMULAS ON PAGE 7 WILL APPLY. THE CORNER RADII AND CHAMFERS LISTED ON TABLE 1 WER
47、E CHOSEN AS LARGE AS POSSIBLE FOR THE RING SIZES INVOLVED AND ARE RELATED TO THE MAXIMUM THRUST LOADS LISTED IN TABLE VI. IF THE CORNER RADII OR CHAMFERS ARE SMALLER THAN THOSE LISTED, THEN THE THRUST LOADS INCREASE PROPORTIONALLY, IN ACCORDANCE WITH THE FOLLOWING FORMULAS: PT 2 Pd 2 8 Provided by I
48、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-P1= P CH P1= NEW ALLOWABLE THRUST LOAD CH1OR P = LISTED ALLOWABLE THRUST LOAD WHERE: CH1= NEW (SMALLER) CHAMFER CH = LISTED CHAMFER P1= PR R1= NEW (SMALLER) CORNER RADIUS R1R = LISTED CORNER RADIUS LIMIT LOADS LISTED IN TABLE VI ARE BASED ON RINGS OF STEEL (WORKING STRESS = 250,000 PSI) AND OF BERYLLIUM COPPER (WORKING STRESS = 180,000 PSI). IF THE ALLOWABLE GROOVE CAPACITY LOADS, AS CALCULATED BY USING THE FORMULA ON PAGE 7 ARE LESS
