9
INTRODUZIONE -
INTRODUCTION
Cuscinetti a rulli - rapporto di carico C/P per durata L
10h
in ore a diverse velocità (giri/min)
Roller bearings - load ratio C/P for various rating lifes L
10h
(operating hours) at various speed n (r/min)
1.2-
L
10h
C/P when n =
50
100
200
300
500
1000
1500
2000
100
0.7
0.86
1.06
1.19
1.39
1.71
1.93
2.11
500
1.13
1.39
1.71
1.93
2.25
2.77
3.13
3.42
1000
1.39
1.71
2.11
2.38
2.77
3.42
3.86
4.2
1250
1.49
1.83
2.25
2.54
2.97
3.65
4.12
4.5
1600
1.6
1.97
2.43
2.74
3.19
3.93
4.44
4.84
2000
1.71
2.11
2.59
2.93
3.42
4.2
4.75
5.18
2500
1.83
2.25
2.77
3.13
3.65
4.5
5.08
5.54
3200
1.97
2.43
2.99
3.37
3.93
4.84
5.47
5.96
4000
2.11
2.59
3.19
3.61
4.2
5.18
5.85
6.37
5000
2.25
2.77
3.42
3.86
4.5
5.54
6.25
6.81
6300
2.42
2.97
3.66
4.13
4.82
5.93
6.7
7.3
8000
2.59
3.19
3.93
4.44
5.18
6.37
7.2
7.85
10000
2.77
3.42
4.2
4.75
5.54
6.81
7.7
8.39
12500
2.97
3.65
4.5
5.06
5.92
7.29
8.23
8.97
16000
3.19
3.93
4.84
5.47
6.37
7.85
8.86
9.66
20000
3.42
4.2
5.18
5.85
6.81
8.39
9.48
10.3
25000
3.65
4.5
5.54
6.25
7.29
8.97
10.1
11
32000
3.93
4.84
5.96
6.73
7.85
9.66
10.9
11.9
40000
4.2
5.18
6.37
7.2
8.39
10.3
11.7
12.7
50000
4.5
5.54
6.81
7.7
8.97
11
12.5
13.6
63000
4.82
5.93
7.3
8.25
9.61
11.8
13.4
14.6
80000
5.18
6.37
7.85
8.86
10.3
12.7
14.4
15.7
100000
5.54
6.81
8.39
9.48
11
13.6
15.4
16.7
200000
6.81
8.39
10.3
11.7
13.6
16.7
18.9
20.6
L
10h
C/P when n =
3000
4000
5000
8000
10000 15000 20000 30000
100
2.38
2.59
2.77
3.19
3.42
3.86
4.2
4.75
500
3.86
4.2
4.5
5.18
5.54
6.25
6.81
7.7
1000
4.75
5.18
5.54
6.37
6.81
7.7
8.39
9.48
1250
5.08
5.54
5.92
6.81
7.29
8.23
8.97
10.1
1600
5.47
5.96
6.37
7.34
7.85
8.86
9.66
10.9
2000
5.85
6.37
6.81
7.85
8.39
9.48
10.3
11.7
2500
6.25
6.81
7.29
8.39
8.97
10.1
11
12.5
3200
6.73
7.34
7.85
9.03
9.66
10.9
11.9
13.4
4000
7.2
7.85
8.39
9.66
10.3
11.7
12.7
14.4
5000
7.7
8.39
8.97
10.3
11
12.5
13.5
15.4
6300
8.25
8.99
9.61
11.1
11.8
13.4
14.6
16.5
8000
8.86
9.66
10.3
11.9
12.7
14.4
15.7
17.7
10000
9.48
10.3
11
12.7
13.6
15.4
16.7
18.9
12500
10.1
11
11.8
13.6
14.5
16.4
17.9
20.2
16000
10.9
11.9
12.7
14.6
15.7
17.7
19.3
21.8
20000
11.7
12.7
13.6
15.7
16.7
18.9
20.6
23.3
25000
12.5
13.6
14.5
16.7
17.9
20.2
22
24.9
32000
13.4
14.6
15.7
18
19.3
21.8
23.7
26.8
40000
14.4
15.7
16.7
19.3
20.6
23.3
25.4
28.7
50000
15.4
16.7
17.9
20.6
22
24.9
27.1
30.6
63000
16.5
17.9
19.2
22.1
23.6
26.7
29.1
32.8
80000
17.7
19.3
20.6
23.7
25.4
28.7
31.2
35.3
100000
18.9
20.6
22
25.4
27.1
30.6
33.4
37.7
200000
23.3
25.4
27.1
31.2
33.4
37.7
41.1
46.4
