This section is from the book "Machine Shop Work", by Frederick W. Turner, Oscar E. Perrigo, Howard P. Fairfield. Also available from Amazon: Machine shop work.
Diameter Bore | Outside Diameter | Width | Revolutions per Minute | ||||||
Millimeters | Inches | Millimeters | Inches | Millimeters | Inches | 300 | 600 | 1200 | 2400 |
Maximum Load, Pounds | |||||||||
10 | 0.393 | 35 | 1.378 | 11 | 0.433 | 290 | 230 | 175 | 140 |
12 | 0.472 | 37 | 1.456 | 12 | 0.472 | 330 | 265 | 200 | 165 |
15 | 0.590 | 42 | 1.653 | 13 | 0.511 | 375 | 300 | 220 | 185 |
17 | 0.669 | 47 | 1.850 | 14 | 0.551 | 490 | 390 | 290 | 240 |
20 | 0.787 | 52 | 2.047 | 15 | 0.590 | 600 | 480 | 360 | 295 |
25 | 0.984 | 62 | 2.440 | 17 | 0.669 | 880 | 705 | 530 | 430 |
30 | 1.181 | 72 | 2.834 | 19 | 0.748 | 1,100 | 880 | 660 | 540 |
35 | 1.378 | 80 | 3.149 | 21 | 0.826 | 1,400 | 1,125 | 840 | 685 |
40 | 1.574 | 90 | 3.543 | 23 | 0.905 | 1,650 | 1,325 | 990 | 800 |
45 | 1.771 | 100 | 3.937 | 25 | 0.984 | 2,200 | 1,760 | 1,300 | 1,100 |
50 | 1.968 | 110 | 4.330 | 27 | 1.063 | 2,750 | 2,200 | 1,650 | 1,350 |
55 | 2.165 | 120 | 4.724 | 29 | 1.141 | 3,300 | 2,650 | 2,000 | 1,600 |
60 | 2.362 | 130 | 5.118 | 31 | 1.220 | 3,850 | 3,100 | 2,300 | 1,850 |
65 | 2.559 | 140 | 5.511 | 33 | 1.299 | 4,200 | 3,350 | 2,550 | 2,050 |
70 | 2.755 | 150 | 5.905 | 35 | 1.378 | 4,500 | 3,600 | 2,750 | 2,200 |
75 | 2.952 | 160 | 6.299 | 37 | 1.456 | 5,300 | 4,250 | 3,100 | 2,600 |
80 | 3.149 | 170 | 6.692 | 39 | 1.535 | 6,000 | 4,800 | 3,500 | 2,950 |
85 | 3.346 | 180 | 7.086 | 41 | 1.614 | 7,500 | 6,000 | 4,400 | 3,700 |
90 | 3.543 | 190 | 7.480 | 43 | 1.692 | 8,400 | 6,700 | 5,100 | 4,125 |
100 | 3.937 | 215 | 8.464 | 47 | 1.850 | 10,400 | 8,325 | 6,200 | 5,100 |
110 | 4.330 | 240 | 9.448 | 50 | 1.968 | 13,200 | 10,500 | 7,900 | 6,500 |
 
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