SPEED CONVERSION TABLES
Rotational and peripheral speed of grinding wheels
Each grinding wheel has a specific permissible operating speed (rotational and peripheral), which is reflected in the tool marking. Always check that the highest permissible speed specified on the grinding wheel matches the speed specified on the machine. In any case, the highest permissible peripheral speed of the grinding wheel must not be exceeded on the machine.
Table of speed conversion depending on the outside diameter of the grinding wheel
This is an excerpt from EN 12 413, and the table shows the conversion of rotational and peripheral speeds for common grinding wheel dimensions.
Diameter of the grinding wheel
ø |
Max peripheral speed V [m/s] |
||||||||||||||||||
5 |
6 |
8 |
10 |
12 |
16 |
20 |
25 |
32 |
35 |
40 |
50 |
63 |
80 |
100 |
125 |
140 |
160 |
||
|
Rotational speed n [rpm] |
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6 |
16000 |
19100 |
25500 |
31900 |
38200 |
51000 |
64000 |
80000 |
102000 |
112000 |
128000 |
160000 |
201000 |
|
|
|
|
|
|
8 |
12000 |
14400 |
19100 |
24000 |
29000 |
38200 |
48000 |
60000 |
76500 |
84000 |
95500 |
120000 |
150000 |
191000 |
|
|
|
|
|
10 |
9600 |
11500 |
15300 |
19100 |
23000 |
30600 |
38200 |
48000 |
61200 |
67000 |
76500 |
95500 |
120500 |
153000 |
191000 |
|
|
|
|
13 |
7400 |
8850 |
11800 |
14700 |
17700 |
23550 |
29500 |
35600 |
47100 |
51500 |
58800 |
73500 |
92600 |
118000 |
147000 |
184000 |
206000 |
|
|
16 |
6000 |
7200 |
9550 |
11950 |
14350 |
19100 |
23900 |
29850 |
38200 |
41800 |
47800 |
59700 |
75200 |
95500 |
120000 |
150000 |
168000 |
191000 |
|
20 |
4800 |
5750 |
7650 |
9550 |
11500 |
15300 |
19100 |
23900 |
30600 |
33500 |
38200 |
47800 |
60200 |
76500 |
95500 |
120000 |
134000 |
153000 |
|
25 |
3850 |
4600 |
6150 |
7650 |
9200 |
12300 |
15300 |
19100 |
24500 |
26800 |
30600 |
38200 |
48200 |
61200 |
76500 |
95500 |
107000 |
123000 |
|
32 |
3000 |
3600 |
4800 |
6000 |
7200 |
9550 |
11950 |
14950 |
19100 |
20900 |
23900 |
30000 |
37600 |
48000 |
60000 |
75000 |
84000 |
95500 |
|
40 |
2400 |
2900 |
3850 |
4800 |
5750 |
7650 |
9550 |
11950 |
15300 |
16750 |
19100 |
23900 |
30100 |
38200 |
47200 |
59700 |
67000 |
76500 |
|
50 |
1950 |
2300 |
3100 |
3850 |
4600 |
6150 |
7650 |
9550 |
12250 |
13400 |
15300 |
19100 |
24100 |
30600 |
38200 |
47750 |
53500 |
61200 |
|
63 |
1550 |
1850 |
2450 |
3050 |
3650 |
4850 |
6100 |
7600 |
9750 |
10650 |
12150 |
15200 |
19100 |
24300 |
30250 |
37900 |
42500 |
48500 |
|
80 |
1200 |
1450 |
1950 |
2400 |
2900 |
3850 |
4800 |
6000 |
7650 |
8400 |
9550 |
12000 |
15100 |
19100 |
23900 |
29850 |
33500 |
38200 |
|
100 |
960 |
1150 |
1550 |
1950 |
2300 |
3100 |
3850 |
4800 |
6150 |
6700 |
7650 |
9550 |
12100 |
15300 |
19100 |
23900 |
26800 |
30600 |
|
115 |
830 |
1000 |
1350 |
1700 |
2000 |
2700 |
3350 |
4200 |
5350 |
5850 |
6650 |
8350 |
10500 |
13300 |
16650 |
20800 |
23250 |
26600 |
|
125 |
770 |
920 |
1250 |
1550 |
1850 |
2450 |
3100 |
3850 |
4900 |
5350 |
6150 |
7650 |
9650 |
12250 |
15300 |
19100 |
21400 |
24500 |
|
150 |
640 |
770 |
1050 |
1300 |
1550 |
2050 |
2550 |
3200 |
4100 |
4500 |
5100 |
6400 |
8050 |
10200 |
12700 |
16000 |
17850 |
20400 |
|
180 |
530 |
640 |
850 |
1100 |
1300 |
1700 |
2150 |
2700 |
3400 |
3750 |
4250 |
5350 |
6700 |
8500 |
10650 |
13300 |
14900 |
17000 |
|
200 |
480 |
580 |
765 |
955 |
1150 |
1550 |
1950 |
2400 |
3100 |
3350 |
3850 |
4800 |
6050 |
7650 |
9950 |
11950 |
13400 |
15300 |
|
230 |
420 |
500 |
665 |
830 |
1000 |
1350 |
1700 |
2100 |
2700 |
2950 |
3350 |
4200 |
5250 |
6650 |
8350 |
10400 |
11650 |
13300 |
|
250 |
380 |
460 |
615 |
765 |
920 |
1250 |
1550 |
1950 |
2450 |
2700 |
3100 |
3850 |
4850 |
6150 |
7650 |
9950 |
10700 |
12250 |
|
300 |
320 |
380 |
510 |
640 |
765 |
1050 |
1300 |
1600 |
2050 |
2250 |
2550 |
3200 |
4050 |
5100 |
6400 |
8000 |
8850 |
10200 |
|
350/356 |
280 |
330 |
440 |
550 |
655 |
875 |
1100 |
1400 |
1750 |
1950 |
2200 |
2750 |
3450 |
4400 |
5500 |
6850 |
7650 |
8750 |
|
400/406 |
240 |
290 |
385 |
480 |
575 |
765 |
960 |
1200 |
1550 |
1700 |
1950 |
2400 |
3050 |
3850 |
4800 |
6000 |
6700 |
7650 |
|
450/457 |
210 |
255 |
340 |
425 |
510 |
680 |
850 |
1100 |
1400 |
1500 |
1700 |
2150 |
2700 |
3400 |
4250 |
5350 |
5950 |
6800 |
|
500/508 |
190 |
230 |
310 |
385 |
460 |
615 |
765 |
960 |
1250 |
1350 |
1550 |
1950 |
2450 |
3100 |
3850 |
4800 |
5350 |
6150 |
|
600/610 |
160 |
190 |
255 |
320 |
385 |
510 |
640 |
800 |
1050 |
1150 |
1300 |
1600 |
2050 |
2550 |
3200 |
4000 |
4500 |
5100 |
|
750/762 |
130 |
155 |
205 |
255 |
310 |
410 |
510 |
640 |
820 |
895 |
1050 |
1300 |
1650 |
2050 |
2550 |
3200 |
3600 |
4100 |
|
800/813 |
120 |
145 |
195 |
240 |
290 |
385 |
480 |
600 |
765 |
840 |
960 |
1200 |
1550 |
1950 |
2400 |
3000 |
3350 |
3850 |
|
900/914 |
110 |
130 |
170 |
215 |
255 |
340 |
425 |
535 |
680 |
750 |
850 |
1100 |
1350 |
1700 |
2150 |
2700 |
3000 |
3400 |
|
1000/1015 |
100 |
115 |
155 |
195 |
230 |
310 |
385 |
480 |
615 |
670 |
765 |
960 |
1250 |
1550 |
1950 |
2400 |
2700 |
3100 |
|
1060/1067 |
95 |
110 |
150 |
185 |
220 |
295 |
365 |
455 |
585 |
640 |
730 |
910 |
1150 |
1500 |
1850 |
2300 |
2550 |
2950 |
|
1200 |
90 |
105 |
140 |
175 |
210 |
280 |
350 |
435 |
560 |
610 |
695 |
870 |
1100 |
1400 |
1750 |
2200 |
2450 |
2800 |
|
1220 |
85 |
95 |
130 |
160 |
195 |
255 |
320 |
400 |
510 |
560 |
640 |
800 |
1050 |
1300 |
1600 |
2000 |
2250 |
2550 |
|
1500 |
65 |
75 |
105 |
130 |
155 |
205 |
255 |
320 |
410 |
450 |
510 |
640 |
805 |
1050 |
1300 |
1600 |
1800 |
2050 |
|
1800 |
55 |
65 |
85 |
110 |
130 |
170 |
220 |
265 |
340 |
375 |
425 |
535 |
670 |
850 |
1100 |
1350 |
1500 |
1700 |
Table of the dependence of the maximum permissible rotational speed for mounted points on the overhang length of the pin L0=5 mm.
Diameter of the mounted points wheel |
Max peripheral speed V [m/s] |
||||||||||||||||||
25 [m/s] |
30 [m/s] |
40 [m/s] |
|||||||||||||||||
|
Rotational speed n [rpm] |
||||||||||||||||||
10 |
47700 |
57300 |
76400 |
||||||||||||||||
12 |
39800 |
47700 |
63700 |
||||||||||||||||
14 |
34100 |
40900 |
54600 |
||||||||||||||||
16 |
29800 |
35800 |
47700 |
||||||||||||||||
20 |
23900 |
28600 |
38200 |
||||||||||||||||
25 |
19100 |
22900 |
30600 |
||||||||||||||||
32 |
14900 |
17900 |
23900 |
||||||||||||||||
40 |
11900 |
14300 |
19100 |
||||||||||||||||
50 |
9500 |
11500 |
15300 |