Machinery's Handbook, 31st Edition
RETAINING RINGS
1911
Table 9. Heavy Duty Internal Spiral Retaining Rings MIL-R-27426 Table 9. (Continued) Heavy Duty Internal Spiral Retaining Rings MIL-R-27426
Ring
Groove
Static Thrust Load (lb)
Ring
Groove
Static Thrust Load (lb)
Bore Dia. A
Bore Dia. A
Dia. G
Wall E
Dia. C
Width D
Dia. G
Wall E
Dia. C
Width D
Ring Ring Groove 2.125 2.267 0.168 2.251 0.086 21870 8935 9.750 10.260 0.500 10.189 0.209 229120 214325 2.188 2.334 0.168 2.318 0.086 22520 9745 10.000 10.523 0.500 10.450 0.209 234990 225330 2.250 2.399 0.168 2.382 0.086 23160 10455 10.250 10.786 0.500 10.711 0.209 240870 236605 2.312 2.467 0.200 2.450 0.086 23790 11700 10.500 11.047 0.500 10.970 0.209 246740 247110 2.357 2.535 0.200 2.517 0.086 24440 12715 10.750 11.313 0.500 11.234 0.209 252620 260530 2.440 2.602 0.200 2.584 0.086 25110 13550 11.000 11.575 0.500 11.495 0.209 258490 272645 2.500 2.667 0.200 2.648 0.086 25730 14640 11.250 11.838 0.500 11.756 0.209 264360 285040 2.531 2.700 0.200 2.681 0.086 26050 15185 11.500 12.102 0.562 12.018 0.209 270240 298285 2.562 2.733 0.225 2.714 0.103 29940 12775 11.750 12.365 0.562 12.279 0.209 276120 311240 2.625 2.801 0.225 2.781 0.103 30680 13780 12.000 12.628 0.562 12.540 0.209 281990 324475 2.688 2.868 0.225 2.848 0.103 31410 14775 12.250 12.891 0.562 12.801 0.209 287860 337980 2.750 2.934 0.225 2.914 0.103 32140 15790 12.500 13.154 0.562 13.063 0.209 293740 352390 2.813 3.001 0.225 2.980 0.103 32870 16845 12.750 13.417 0.562 13.324 0.209 299610 366460 2.834 3.027 0.225 3.006 0.103 33120 17595 13.000 13.680 0.662 13.585 0.209 305490 380805 2.875 3.072 0.225 3.051 0.103 33600 18505 13.250 13.943 0.662 13.846 0.209 311360 395430 3.000 3.204 0.225 3.182 0.103 35060 20795 13.500 14.207 0.662 14.108 0.209 317240 411000 3.062 3.271 0.281 3.248 0.120 42710 18735 13.750 14.470 0.662 14.369 0.209 323110 426185 3.125 3.338 0.281 3.315 0.120 43590 19865 14.000 14.732 0.662 14.630 0.209 328990 441645 3.157 3.371 0.281 3.348 0.120 44020 20345 14.250 14.995 0.662 14.891 0.209 334860 457380 3.250 3.470 0.281 3.446 0.120 45330 22120 14.500 15.259 0.750 15.153 0.209 340740 474120 3.346 3.571 0.281 3.546 0.120 46670 23905 14.750 15.522 0.750 15.414 0.209 346610 490415 3.469 3.701 0.281 3.675 0.120 48390 26405 15.000 15.785 0.750 15.675 0.209 352490 506990 3.500 3.736 0.281 3.710 0.120 48820 27370 Groove Source: Spirolox Retaining Rings, RRN Series. All dimensions are in inches. Depth of groove d = ( C − A )/2. Thickness indicated is for unplated rings; add 0.002 to upper thickness tolerance for plated rings. Standard material: carbon spring steel (SAE 1070-1090). Ring Thickness, F : For housing sizes 0.500 through 0.750, 0.035; for sizes 0.777 through 1.023, 0.042; for sizes 1.062 through 1.500, 0.050; for sizes 1.562 through 2.000, 0.062; for sizes 2.062 through 2.531, 0.078; for sizes 2.562 through 3.000, 0.093; for sizes 3.062 through 5.000, 0.111; for sizes 5.250 through 7.000, 0.156; for sizes 7.250 through 15.000, 0.187. Ring Free Diameter Tolerances: For housing sizes 0.500 through 1.500, +0.013, − 0.000; for sizes 1.562 through 2.000, +0.020, − 0.000; for sizes 2.062 through 2.531, + 0.025, − 0.000; for sizes 2.562 through 3.000, +0.030, − 0.000; for sizes 3.062 through 5.000, +0.035, − 0.000; for sizes 5.250 through 6.000, +0.050, − 0.000; for sizes 6.250 through 7.000, +0.055. − 0.000; for sizes 7.250 through 10.500, +0.070, − 0.000; for sizes 10.750 through 12.750, +0.120, − 0.000; for sizes 13.000 through 15.000, +0.140, − 0.000. Ring Thickness Tolerances: For housing sizes 0.500 through 1.500, ± 0.002; for sizes 1.562 through 5.000, ± 0.003; for sizes 5.250 through 6.000, ± 0.004; for sizes 6.250 through 15.000, ± 0.005. Groove Diameter Tolerances: For housing sizes 0.500 through 0.750, ± 0.002; for sizes 0.777 through 1.023, ± 0.003; for sizes 1.062 through 1.500, ± 0.004; for sizes 1.562 through 2.000, ± 0.005; for sizes 2.062 through 5.000, ± 0.006; for sizes 5.250 through 6.000, ± 0.007; for sizes 6.250 through 10.500, ± 0.008; for sizes 10.750 through 12.500, ± 0.010; for sizes 12.750 through 15.000, ± 0.012. Groove Width Tolerances: For housing sizes 0.500 through 1.023, +0.003, − 0.000; for sizes 1.062 through 2.000, +0.004, − 0.000; for sizes 2.062 through 5.000, +0.005, − 0.000; for sizes 5.250 through 6.000, +0.006, − 0.000; for sizes 6.250 through 7.000, +0.008, − 0.000; for sizes 7.250 through 15.000, +0.008, − 0.000.
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