vee mountings

Vee Mountings™
Features
Vee mountings have ideal stiffness characteristics for rail
vehicle engine suspensions.
The vertical stiffness rate ensures that when the mounting is
properly loaded, the vertical natural frequency doesn’t coincide
with the body bending frequency. The high longitudinal
stiffness controls shunting shock motion.
The mounting is usually connected to the sole bars via the base
casting, and a buffer is attached to the Vee section casting to
limit tensile loads.
type Vee Mountings™
A high load capacity mounting with relatively large rubber
volume providing a high degree of vibration and noise
isolation and makes it ideally suited for suspending
engines installed in public service and goods vehicles.
Drawing no.
11-1082
11-1082
11-1033
10-1033
Part no.
10-00205
10-00206
10-00196
10-00197
SOBTRADE Sp. z o.o. z siedzibą w Warszawie
Oddział w Ostrówku
Ul. XXX- lecia PRL 4g , 07-132 Ostrówek
The Vee mounting has the following features:
Three dissimilar translational stiffnesses for the best
vibration isolation and motion control.
Strong castings for safety and reliability.
M-Max (Kg)
Weight (Kg)
210
315
470
710
4,2
4,2
4,5
4,5
Tel. + 48 25 675 55 66
fax: 25 675 55 36
email: [email protected]
www.sobtrade.pl
Vee Mountings™
Note: The natural frequencies and degrees of isolation are based on dynamic characteristics of the mountings.
Load
per mounting (kg)
800
Diagram 2
Diagram 1
700
600
500
11
450
-10
33
-60
400
350
33
-50
33
-10
-60
11
300
82
-65
11
180
33
-10
-10
11
200
-50
11
-10
250
82
82
-10
-10
-55
11
11
140
-65
160
-10
82
-55
120
11
100
90
80
70
60
50
6
7
8
9
10
11
12
13
14
15
16
Natural frequency (Hz)
Interfering frequency (Hz)
6
7
8
9
10
Diagram 3
Reso
nance
12
Avoid
this r
egion
15
20
25
30
0
1
2
3
4 5 6 7 8 10
Static deflection (mm)
To select correct mounting, following data
are needed:
1) Load per mounting (kg)
2) Interfering frequency (Hz)
(Hz = rpm / 60 )
Select correct load line in diagram 1 and
correct interference line in diagram 3.
The load line intersects with required type
of mounting.
Connect this intersection point vertically
down to the interference line in diagram 3.
Here, on the sloping curve, the isolation
degree is indicated.
For static deflection, see diagram 2.
50
70
40
50
80
85
90
60
70
80
90
100
Degree of isolation (%)/Reduction (dB)
SOBTRADE Sp. z o.o. z siedzibą w Warszawie
Oddział w Ostrówku
Ul. XXX- lecia PRL 4g , 07-132 Ostrówek
Tel. + 48 25 675 55 66
fax: 25 675 55 36
email: [email protected]
www.sobtrade.pl
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