BUILT-IN VIBRATION ISOLATION MOUNTS (LIGHTWEIGHT TYPE)

E-9942

Material
PLATE: SPHC BOLT: SUM23
Surface treatment
TRIVALENT CHROME PLATING
Feature
This mount is for incorporation into other equipment and uses expanded polyurethane vibration isolation material which off ers excellent vibration isolation.

Features
Isolates low-frequency vibrations
●Able to isolate low-frequency vibrations by using expanded polyurethane, which surpasses rubber-based vibration isolation materials.
Suitable for a wide range of loads
● Suitable for a wide range of loads from 11 N to 58 N.
Wide variety of vibration isolation materials
● 2 to 4 diff erent types of vibration isolation materials are available for each size. This allows you to minimize diff erences in size even for diff erent loads.

Applications
Isolation of vibrations from external sources
● Isolates transmission of vibrations from external sources such as to precision measuring instruments, inspection equipment, and machining tools.
Suppression of vibrations transmitted to external devices
● Suppresses vibrations from vibrations sources such as pumps and generators from being transmitted to external devices.

The below items will be discontinued, once the present stock run out.

* The below items will be discontinued, once the present stock run out.


Spec/Price
Usage
How to use Product BOX

Specifications

Order
No.		 № ViBration
Isolation
Material
Color		 Maximum
Allowable
Load
(N)		 Resonant
frequency
[Hz]		 Target
Vibration
Frequency
[Hz]		 Vibration
Isolation
Material
Deformation
[mm]		 Weight
(g)		 Drawing Product
BOX		 Production Stock
Status
109396 BBL20D007 Pink 11～16 14 28～ 2 21 View Add Discontinued Contact
109397 BBL20D013 Dark yellow 23～31 15 29～ 2 21 View Add Discontinued Contact
109398 BBL20D030 Dark green 52～70 14 27～ 2 22 View Add Discontinued Contact
109399 BBL20M097 Dark magenta 130～180 13 26～ 2 22 View Add Discontinued Contact
109400 BBL25D007 Pink 16～26 13 25～ 2 35 View Add Discontinued Contact
109401 BBL25D013 Dark yellow 37～50 13 26～ 2 35 View Add Discontinued Contact
109402 BBL25D030 Dark green 80～100 12 25～ 2 37 View Add Discontinued Contact
109403 BBL25M097 Dark magenta 210～290 12 24～ 3 38 View Add Discontinued Contact
109404 BBL30D007 Pink 28～38 11 23～ 2 44 View Add Discontinued Contact
109405 BBL30D013 Dark yellow 53～72 12 23～ 3 46 View Add Discontinued Contact
109406 BBL30D030 Dark green 110～150 11 22～ 3 48 View Add Discontinued Contact
109407 BBL30M097 Dark magenta 320～430 10 21～ 3 51 View Add Discontinued Contact
109408 BBL35D007 Pink 39～52 11 21～ 3 73 View Add Discontinued Contact
109409 BBL35D013 Dark yellow 73～98 11 22～ 3 75 View Add Discontinued Contact
109410 BBL35D030 Dark green 150～210 10 21～ 3 79 View Add Discontinued Contact
109411 BBL35M097 Dark magenta 440～580 10 20～ 4 83 View Add Discontinued Contact
109412 BBL40D013 Dark yellow 95～120 10 20～ 3 91 View Add Discontinued Contact
109413 BBL40D030 Dark green 200～280 10 19～ 3 96 View Add Discontinued Contact

Usage

For devices with a high center of gravity, swaying of the device can be reduced by installing anti-vibration products at a position near the center of gravity inside the device.

Characteristic Data

Selection Points

Read the resonant frequencies of the mounts depending on the load from the table on the left and select the mount where the resonant frequency is 1/2 (0.5 times) or less the frequency of the vibration you want to isolate.

Selection Examples
If you want to isolate the vibrations from a pump running at 1,800 rpm with a load of 50 N on each mount

■The vibration frequency generated by the pump is 1,800 rpm/60 seconds = 30 Hz.
　Therefore, select mounts that have a resonant frequency of 30 Hz/2 = 15 Hz or less.
■The BBL25D013 (resonant frequency of approx.
　13 Hz with a 50 N load) or BBL35D007 (resonant frequency of approx. 11 Hz with a 50 N load) are suitable for this case.

Usage Warnings

・If the resonant frequency of the mount is 1/√2 (0.7) times or higher than the vibration frequency you want to eliminate, damping effect will not act and the vibrations will be amplified.
　The mount should be used loaded under compression.
・It cannot be used with a tensile or shear load. (Refer to the examples above)
　You should also ensure that the mounts are not loaded with tensile or shear loads during transport and storage. The mount may become damaged if subjected to tensile or shear loads.

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