BA 5230 en 04/2011
1.2
Measuringsurface soundpressure level
The gear unit has a measuringsurface soundpressure level at a distance of 1 m, which can be found in
tables 1 and 2.
The measurement is carried out to DIN EN ISO 9614 Part 2, using the soundintensity method.
The workplace of the operating personnel is defined as the area on the measuringsurface at a distance
of 1 metre in the vicinity of which persons may be present.
The soundpressure level applies to the warmedup gear unit at input speed n
1
and output power P
2
stated
on the rating plate, as measurement obtained on the Siemens test bench. If several figures are given, the
highest speed and power values apply.
The measuringsurface soundpressure level includes addon lubrication units, if applicable. With
outgoing and incoming pipes, the interfaces are the flanges.
The soundpressure levels stated in the table were obtained by statistical calculation by our Quality Control
Dept. The gear unit can be statistically expected to comply with these soundpressure levels.
1.2.1
Measuringsurface soundpressure level for bevel gear units (K...) with fan
Table 1:
Measuringsurface soundpressure level L
pA
in dB(A) for bevel gear units with fan
c
Type
i
N
n
1
1/min
Gear-unit size
1
1.2
1.5
2
3
4
5
6
7
8
9
K1.
1
1500
70
72
74
77
79
82
85
87
90
92
94
.
1000
65
67
70
72
75
79
81
83
86
88
90
1.6
750
60
62
65
67
70
72
74
76
79
81
85
1.8
1500
67
69
71
74
77
81
83
86
88
91
93
.
1000
63
64
67
68
73
76
78
80
82
85
87
2.8
750
1)
1)
61
62
65
68
70
72
75
78
82
3.15
1500
63
65
68
72
77
79
82
84
86
89
91
.
1000
1)
1)
62
65
70
73
76
78
80
83
85
5
750
1)
1)
1)
1)
63
66
69
72
73
76
78
1)
L
pA
< 60 dB(A)
1.2.2
Measuringsurface soundpressure level for bevel gear units (K...) without fan
Table 2:
Measuringsurface soundpressure level L
pA
in dB(A) for bevel gear units without fan
Measuring-surface sound-pressure level LpA in dB(A)
Type
i
N
n
1
1/min
Gear-unit size
1
1.2
1.5
2
3
4
5
6
7
8
9
K1.
1
1500
69
71
73
76
78
81
84
87
89
91
93
.
1000
64
66
69
71
74
78
80
82
84
87
89
1.6
750
1)
61
64
66
69
71
73
75
78
80
84
1.8
1500
66
68
70
73
76
80
82
85
87
89
91
.
1000
62
63
66
67
72
75
77
79
81
84
86
2.8
750
1)
1)
60
61
64
67
69
71
74
77
81
3.15
1500
62
64
67
71
76
78
81
83
85
88
90
.
1000
1)
1)
61
64
69
72
75
77
79
82
84
5
750
1)
1)
1)
1)
62
65
68
71
72
75
77
1)
L
pA
< 60 dB(A)
1.3
Weights
For the exact weights, refer to the drawings in the gearunit documentation.