Converting circumferential speed limits to rotational speeds
| Shaft diameter
at the seal lip |
Rotational speed for circumferential speed limits |
||||||
| 2 m/s | 4 m/s | 7 m/s | 8 m/s | 12 m/s | 13 m/s | ||
| mm | r/min
|
||||||
| 20 | 1 910 | 3 820 | 6 680 | 7 640 | 11 460 | 12 410 | |
| 25 | 1 530 | 3 060 | 5 350 | 6 110 | 9 170 | 9 930 | |
| 30 | 1 270 | 2 550 | 4 460 | 5 090 | 7 640 | 8 280 | |
| 35 | 1 090 | 2 180 | 3 820 | 4 370 | 6 550 | 7 090 | |
| 40 | 950 | 1 910 | 3 340 | 3 820 | 5 730 | 6 210 | |
| 45 | 850 | 1 700 | 2 970 | 3 400 | 5 090 | 5 520 | |
| 50 | 760 | 1 530 | 2 670 | 3 060 | 4 580 | 4 970 | |
| 55 | 690 | 1 390 | 2 430 | 2 780 | 4 170 | 4 510 | |
| 60 | 640 | 1 270 | 2 230 | 2 550 | 3 820 | 4 140 | |
| 65 | 590 | 1 180 | 2 060 | 2 350 | 3 530 | 3 820 | |
| 70 | 550 | 1 090 | 1 910 | 2 180 | 3 270 | 3 550 | |
| 75 | 510 | 1 020 | 1 780 | 2 040 | 3 060 | 3 310 | |
| 80 | 480 | 950 | 1 670 | 1 910 | 2 860 | 3 100 | |
| 85 | 450 | 900 | 1 570 | 1 800 | 2 700 | 2 920 | |
| 90 | 420 | 850 | 1 490 | 1 700 | 2 550 | 2 760 | |
| 95 | 400 | 800 | 1 410 | 1 610 | 2 410 | 2 610 | |
| 100 | 380 | 760 | 1 340 | 1 530 | 2 290 | 2 480 | |
| 110 | 350 | 690 | 1 220 | 1 390 | 2 080 | 2 260 | |
| 115 | 330 | 660 | 1 160 | 1 330 | 1 990 | 2 160 | |
| 120 | 320 | 640 | 1 110 | 1 270 | 1 910 | 2 070 | |
| 125 | 310 | 610 | 1 070 | 1 220 | 1 830 | 1 990 | |
| 130 | 290 | 590 | 1 030 | 1 180 | 1 760 | 1 910 | |
| 135 | 280 | 570 | 990 | 1 130 | 1 700 | 1 840 | |
| 140 | 270 | 550 | 950 | 1 090 | 1 640 | 1 770 | |
| 145 | 260 | 530 | 920 | 1 050 | 1 580 | 1 710 | |
| 150 | 250 | 510 | 890 | 1 020 | 1 530 | 1 660 | |
| 155 | 250 | 490 | 860 | 990 | 1 480 | 1 600 | |
| 160 | 240 | 480 | 840 | 950 | 1 430 | 1 550 | |
| 165 | 230 | 460 | 810 | 930 | 1 390 | 1 500 | |
| 170 | 220 | 450 | 790 | 900 | 1 350 | 1 460 | |
| 175 | 220 | 440 | 760 | 870 | 1 310 | 1 420 | |
| 180 | 210 | 420 | 740 | 850 | 1 270 | 1 380 | |
| 185 | 210 | 410 | 720 | 830 | 1 240 | 1 340 | |
| 195 | 200 | 390 | 690 | 780 | 1 180 | 1 270 | |
| 200 | 190 | 380 | 670 | 760 | 1 150 | 1 240 | |
| 205 | 190 | 370 | 650 | 750 | 1 120 | 1 210 | |
| 215 | 180 | 360 | 620 | 710 | 1 070 | 1 150 | |
| 220 | 170 | 350 | 610 | 690 | 1 040 | 1 130 | |
| 240 | 160 | 320 | 560 | 640 | 950 | 1 030 | |
| 255 | 150 | 300 | 520 | 600 | 900 | 970 | |
| 260 | 150 | 290 | 510 | 590 | 880 | 950 | |
| 275 | 140 | 280 | 490 | 560 | 830 | 900 | |
| 280 | 140 | 270 | 480 | 550 | 820 | 890 | |
| 295 | 130 | 260 | 450 | 520 | 780 | 840 | |
| 300 | 130 | 250 | 450 | 510 | 760 | 830 | |
| 320 | 120 | 240 | 420 | 480 | 720 | 780 | |
| 340 | 110 | 220 | 390 | 450 | 670 | 730 | |
| 360 | 110 | 210 | 370 | 420 | 640 | 690 | |
| 380 | 100 | 200 | 350 | 400 | 600 | 650 | |
| 400 | 100 | 190 | 330 | 380 | 570 | 620 | |
| 410 | 90 | 190 | 330 | 370 | 560 | 610 | |
| 430 | 90 | 180 | 310 | 360 | 530 | 580 | |
| 450 | 80 | 170 | 300 | 340 | 510 | 550 | |
| 470 | 80 | 160 | 280 | 330 | 490 | 530 | |
| 500 | 80 | 150 | 270 | 310 | 460 | 500 | |
