328
Brown & Sharpe Mfg. Co.
TABLE OF CUTTING SPEEDS-Continued
FT. Per Minute |
60 | 65 | 70 | 75 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Diam. | REVOLUTIONS PER MINUTE | |||||||||||
1⁄16 | 3667 | 3973 | 4278 | 4585 | 4889 | |||||||
1⁄8 | 1833 | 1986 | 2139 | 2292 | 2445 | 2750 | 3056 | 3361 | 3667 | 3973 | 4278 | 4584 |
3⁄16 | 1222 | 1324 | 1426 | 1528 | 1630 | 1833 | 2037 | 2241 | 2445 | 2648 | 2852 | 3056 |
1⁄4 | 917 | 993 | 1070 | 1146 | 1222 | 1375 | 1528 | 1681 | 1833 | 1986 | 2139 | 2292 |
5⁄16 | 733 | 794 | 856 | 917 | 978 | 1100 | 1222 | 1345 | 1467 | 1589 | 1711 | 1833 |
3⁄8 | 611 | 662 | 713 | 764 | 815 | 917 | 1019 | 1120 | 1222 | 1324 | 1426 | 1528 |
7⁄16 | 524 | 568 | 611 | 655 | 698 | 786 | 873 | 960 | 1048 | 1135 | 1222 | 1310 |
1⁄2 | 458 | 497 | 535 | 573 | 611 | 688 | 764 | 840 | 917 | 993 | 1070 | 1146 |
5⁄8 | 367 | 397 | 428 | 458 | 489 | 550 | 611 | 672 | 733 | 794 | 856 | 917 |
3⁄4 | 306 | 331 | 357 | 382 | 407 | 458 | 509 | 560 | 611 | 662 | 713 | 764 |
7⁄8 | 262 | 284 | 306 | 327 | 349 | 393 | 437 | 480 | 524 | 568 | 611 | 655 |
1 | 229 | 248 | 267 | 287 | 396 | 344 | 382 | 420 | 458 | 497 | 535 | 573 |
11⁄8 | 204 | 221 | 238 | 255 | 272 | 306 | 340 | 373 | 407 | 441 | 475 | 509 |
11⁄4 | 183 | 199 | 214 | 229 | 244 | 275 | 306 | 336 | 367 | 397 | 428 | 458 |
13⁄8 | 167 | 181 | 194 | 208 | 222 | 250 | 278 | 306 | 333 | 361 | 389 | 417 |
11⁄2 | 153 | 166 | 178 | 191 | 204 | 229 | 255 | 280 | 306 | 331 | 357 | 382 |
15⁄8 | 141 | 153 | 165 | 176 | 188 | 212 | 235 | 259 | 282 | 306 | 329 | 353 |
13⁄4 | 131 | 142 | 153 | 164 | 175 | 196 | 218 | 240 | 262 | 284 | 306 | 327 |
17⁄8 | 122 | 132 | 143 | 153 | 163 | 183 | 204 | 224 | 244 | 265 | 285 | 306 |
2 | 115 | 124 | 134 | 143 | 153 | 172 | 191 | 210 | 229 | 248 | 267 | 287 |
21⁄4 | 102 | 110 | 119 | 127 | 136 | 153 | 170 | 187 | 204 | 221 | 238 | 255 |
1+1/2 | 91.7 | 99.3 | 107 | 115 | 122 | 138 | 153 | 168 | 183 | 199 | 214 | 229 |
23⁄4 | 83.3 | 90.3 | 97.2 | 104 | 111 | 125 | 139 | 153 | 167 | 181 | 194 | 208 |
3 | 76.4 | 82.8 | 89.1 | 95.5 | 102 | 115 | 127 | 140 | 153 | 166 | 178 | 191 |
31⁄4 | 70.5 | 76.4 | 82.3 | 88.2 | 94.0 | 106 | 118 | 129 | 141 | 153 | 165 | 176 |
31⁄2 | 65.5 | 70.9 | 76.4 | 81.9 | 87.3 | 98.2 | 109 | 120 | 131 | 142 | 153 | 164 |
33⁄4 | 61.1 | 66.2 | 71.3 | 76.4 | 81.5 | 91.7 | 102 | 112 | 122 | 132 | 143 | 153 |
4 | 57.3 | 62.1 | 66.8 | 71.6 | 76.4 | 85.9 | 95.5 | 105 | 115 | 124 | 134 | 143 |
4+1/2 | 50.9 | 55.2 | 59.4 | 63.6 | 67.9 | 76.4 | 85.9 | 93.4 | 102 | 110 | 119 | 127 |
5 | 45.8 | 49.7 | 53.5 | 57.3 | 61.1 | 68.8 | 76.4 | 84.0 | 91.7 | 99.3 | 107 | 115 |
5+1/2 | 41.7 | 45.1 | 48.6 | 52.1 | 55.6 | 62.5 | 69.5 | 76.4 | 83.3 | 90.3 | 97.2 | 104 |
6 | 38.2 | 41.4 | 44.6 | 47.8 | 50.9 | 57.3 | 63.7 | 70.0 | 76.4 | 82.8 | 89.1 | 95.5 |
6+1/2 | 35.3 | 38.2 | 41.1 | 44.1 | 47.0 | 52.9 | 58.8 | 64.6 | 70.5 | 76.4 | 82.3 | 88.2 |
7 | 32.7 | 35.5 | 38.2 | 40.9 | 43.7 | 49.1 | 54.6 | 60.0 | 65.5 | 70.9 | 76.4 | 81.9 |
71⁄2 | 30.6 | 33.1 | 35.7 | 38.2 | 40.7 | 45.8 | 50.9 | 56.0 | 61.1 | 66.2 | 71.3 | 76.4 |
8 | 28.7 | 31.0 | 33.4 | 35.8 | 38.2 | 43.0 | 47.7 | 52.5 | 57.3 | 62.1 | 66.8 | 71.6 |
81⁄2 | 27.0 | 29.2 | 31.5 | 33.7 | 36.0 | 40.4 | 44.9 | 49.4 | 53.9 | 58.4 | 62.9 | 67.4 |
9 | 25.5 | 27.6 | 29.7 | 31.8 | 34.0 | 38.2 | 42.4 | 46.7 | 50.9 | 55.2 | 59.4 | 63.6 |
91⁄2 | 24.1 | 26.1 | 28.2 | 30.2 | 32.2 | 26.3 | 40.2 | 44.2 | 48.3 | 52.3 | 56.3 | 60.3 |
10 | 22.9 | 24.8 | 26.7 | 28.7 | 30.6 | 34.4 | 38.2 | 42.0 | 45.8 | 49.7 | 53.5 | 57.3 |
11 | 20.8 | 22.6 | 24.3 | 26.0 | 27.8 | 31.3 | 34.7 | 38.2 | 41.7 | 45.1 | 48.6 | 52.1 |
12 | 19.1 | 20.7 | 22.3 | 23.9 | 25.5 | 28.6 | 31.8 | 35.0 | 38.2 | 41.4 | 44.6 | 47.8 |
13 | 17.6 | 19.1 | 20.6 | 22.0 | 23.5 | 26.4 | 29.4 | 32.3 | 35.3 | 38.2 | 41.1 | 44.1 |
14 | 16.4 | 17.7 | 19.1 | 20.5 | 21.8 | 24.5 | 27.3 | 30.0 | 32.7 | 35.5 | 38.2 | 40.9 |
15 | 15.3 | 16.6 | 17.8 | 19.1 | 20.4 | 22.9 | 25.5 | 28.0 | 30.6 | 33.1 | 35.7 | 38.2 |
16 | 14.3 | 15.5 | 16.7 | 17.9 | 36.0 | 40.4 | 44.9 | 49.4 | 53.9 | 58.4 | 62.9 | 67.4 |
17 | 13.5 | 14.6 | 15.7 | 16.9 | 18.0 | 20.2 | 22.5 | 24.7 | 27.0 | 29.2 | 31.5 | 33.7 |
18 | 12.7 | 13.8 | 14.9 | 15.9 | 17.0 | 19.1 | 21.2 | 23.3 | 25.5 | 27.6 | 29.7 | 31.8 |
60 | 65 | 70 | 75 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 |