Machinery's Handbook, 31st Edition
1904 RETAINING RINGS Table 5. American National Standard Metric Basic Internal Series 3BMI Retaining Rings—Checking and Performance Data ANSI/ASME B27.7-1977 (R2017) Ring Series and Size No. Clearance Dia. Gaging Diameter a Allowable Thrust Loads Sharp Corner Abutment Maximum Allowable Corner Radii and Chamfers Table 5. (Continued) American National Standard Metric Basic Internal Series 3BMI Retaining Rings.—Checking and Performance Data ANSI/ASME B27.7-1977 (R2017)
Ring in Bore
Ring in Groove
3BMI No. − 58 − 60 − 62 − 63 − 65 − 68 − 70 − 72 − 75 − 78 − 80 − 82 − 85 − 88 − 90 − 92 − 95 − 98 − 100 − 102 − 105 − 108 − 110 − 115 − 120 − 125 − 130 − 135 − 140 − 145 − 150 − 155 − 160 − 165 − 170 − 175 − 180 − 185 − 190 − 200 − 210 − 220 − 230 − 240 − 250
A min.
R max.
Ch max.
P r b kN
P g c kN
C 1
C 2
mm 43.2 45.5 47.0 47.8 49.4 52.0 53.8 55.9 58.2 61.2 63.0 63.5 66.8 69.6 71.6 73.6 76.7 78.3 80.3 82.2 85.1 88.1 88.4 93.2 98.2 103.1 108.0 110.4 115.3 120.4 125.3 130.4 133.8 138.7 143.6 146.0 151.4 154.7 159.5 169.2 177.5 184.1 194.0 200.4 210.0
mm 46.8 49.3 50.8 51.7 53.4 56.2 58.2 60.4 62.9 66.0 68.0 68.7 72.2 75.2 77.3 79.4 82.7 84.5 86.6 88.6 91.6 94.7 95.1
mm 13.0 12.7 14.0 14.2 14.2 14.4 16.1 17.4 16.8 17.6 17.2 18.8 19.1 20.4 21.4 22.2 22.6 22.6 24.1 25.5 26.0 26.4 27.5 29.4 27.2 30.3 31.0 30.4 30.4 31.6 33.5 37.0 35.0 33.1 38.2 37.7 39.0 37.3 35.0 43.9 40.6 38.3 49.0 45.4 53.0
mm 2.0 2.0 2.0 2.0 2.0 2.3 2.3
mm 1.6 1.6 1.6 1.6 1.6 1.8 1.8
111 115 119 120 149 156 161 166 172 209 215 220 228 236 241 247 255 263 269 273 281 290 295 309 321 335 349 415 429 444 460 475 613 632 651 670 690 851 873 919
60 66 68 71 75 82 88 93
2.3 2.3 2.5 2.5 2.6 2.6 2.8 2.8 2.9 3.0 3.0 3.1 3.2 3.3 3.5 3.6 3.7 3.9 4.0 4.0 4.3 4.3 4.3 4.3 4.3 4.5 4.6 4.6 4.8 5.0 5.1 5.3 5.4 5.8 6.1 6.3 6.6 6.7
1.8 1.8 2.0 2.0 2.1 2.1 2.2 2.2 2.4 2.5 2.5 2.5 2.6 2.6 2.7 2.8 2.9 3.1 3.2 3.2 3.4 3.4 3.4 3.4 3.4 3.6 3.7 3.7 3.8 4.0 4.1 4.3 4.3 4.6 4.9 5.1 5.3 5.4
101 108 115 122 131 141 147 153 164 174 181 187 196 205 212 227 241 255 269 283 298 313 327 343 359 374 390 403 434 457 480 517 566 608 686 725 808
100.1 105.2 110.2 115.2 117.7 122.7 127.9 132.9 138.1 141.6 146.6 151.6 154.2 159.8 163.3 168.3 178.2 186.9 194.1 204.6 211.4 221.4
965 1000 1060 1090 1150
a For checking when ring is seated in groove. b These values apply to rings made from SAE 1060-1090 steels and PH 15-7 Mo stainless steel used in bores hardened to 50 RC minimum. Values for rings made from beryllium copper can be calculated by multiplying the listed values by 0.75. The values listed include a safety factor of 4. c These values are for standard rings used in low carbon steel bores. They include a safety factor of 2. Maximum allowable assembly loads for R max or Ch max are: For ring size − 8, 0.8 kN; for sizes − 9 through − 12, 2.0 kN; for sizes − 13 through − 21, 4.0 kN; for sizes − 22 through − 26, 7.4 kN; for sizes − 27 through − 38, 10.8 kN; for sizes − 40 through − 50, 17.4 kN; for sizes − 52 through − 63, 27.4 kN; for size − 65, 42.0 kN; for sizes − 68 through − 72, 39 kN; for sizes − 75 through − 130, 54 kN; for sizes − 135 through − 155, 67 kN; for sizes − 160 through − 180, 102 kN; and for sizes − 185 through − 250, 151 kN. Source: Appendix to American National Standard ANSI/ASME B27.7-1977 (R2017).
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