BUILT-IN VIBRATION ISOLATION MOUNT WITH STOPPER (Lightweight Typ

E-1124

Material: Plate：SPHC
Bolt：S20C

Surface treatment: Trivalent chromate plating

Feature: ■Uses polyurethane foam material that can reduce vibrations even low frequency vibrations.
■Uses ether-based polyurethane that is resistant to water and ultraviolet light without quality deterioration unlike rubbers.
■Since adhesives are not used at the joints with the fittings, there is no need to worry about deterioration or peeling of joints.
■Equipped with a stopper mechanism for preventing the mounted equipment from falling over.

[Application]
■Isolating vibrations caused by vibrating equipment such as compressors, blowers, coolers, and electric motors.
■Removing vibrations transmitted to equipment that is sensitive to vibrations such as measurement instruments and microscopes.
※1 The resonant frequency is the calculated value when the maximum allowable load is applied.
※2 Applicable vibration frequency is vibration frequency which can be isolated. The estimated frequency is calculated such that the vibration in vertical direction can be decreased to 1/2 when maximum loading is applied.
※3 The vibration isolation material deformation is the calculated value when the maximum allowable load is applied.

Specifi cations

Order No.	№	Color	Deflection T	Load tolerance		Natural frequency Hz	Applicable vibration frequencies Hz	Weight (g)	Drawing	Product BOX	CAD	Production	Stock Status
Order No.	№	Color	Deflection T	N	kgf	Natural frequency Hz	Applicable vibration frequencies Hz	Weight (g)	Drawing	Product BOX	CAD	Production	Stock Status
121492	BBS20D007	Pink	2	11 to 16	1.2 to 1.7	14	≧28	40	View	Add	DATA	×	Stock△
121493	BBS20D013	Yellow	2	23 to 31	2.4 to 3.2	15	≧29	41	View	Add	DATA	×	Stock〇
121496	BBS20D030	Green	2	52 to 70	5.4 to 7.2	14	≧27	41	View	Add	DATA	×	Stock△
121497	BBS20M097	Purple	2	130 to 180	14 to 19	13	≧26	42	View	Add	DATA	×	Stock△
121498	BBS25D007	Pink	2	19 to 26	2 to 2.7	13	≧25	65	View	Add	DATA	×	Stock〇
121499	BBS25D013	Yellow	2	37 to 50	3.8 to 5.1	13	≧26	66	View	Add	DATA	×	Contact
121500	BBS25D030	Green	2	80 to 100	8.2 to 11	12	≧25	68	View	Add	DATA	×	Stock△
121501	BBS25M097	Purple	3	210 to 290	22 to 30	12	≧24	70	View	Add	DATA	×	Contact
121502	BBS30D007	Pink	2	28 to 38	2.9 to 3.9	11	≧23	98	View	Add	DATA	×	Stock〇
121503	BBS30D013	Yellow	3	53 to 72	5.5 to7.4	12	≧23	100	View	Add	DATA	×	Contact
121504	BBS30D030	Green	3	110 to 150	12.0 to 16.0	11	≧22	102	View	Add	DATA	×	Stock〇
121505	BBS30M097	Purple	3	320 to 430	33 to 44	10	≧21	106	View	Add	DATA	×	Stock〇
121506	BBS35D007	Pink	3	39 to 52	4 to 5.4	11	≧21	154	View	Add	DATA	×	Stock△
121507	BBS35D013	Yellow	3	73 to 98	7.5 to 10	11	≧22	156	View	Add	DATA	×	Stock△
121508	BBS35D030	Green	3	150 to 210	16 to 22	10	≧21	160	View	Add	DATA	×	Contact
121509	BBS35M097	Purple	4	440 to 580	45 to 60	10	≧20	166	View	Add	DATA	×	Stock〇
121510	BBS40D013	Yellow	3	95 to 120	9.7 to 13	10	≧20	194	View	Add	DATA	×	Contact
121511	BBS40D030	Green	3	200 to 280	21 to 29	10	≧19	199	View	Add	DATA	×	Contact

Usage

Selection Guide

From the graph showing the relationship between natural frequency of each mount and mounted load, select the mount with the
natural frequency of 1/2 or less of the vibration frequency you want to isolate or remove.

[Selection example]
If you want to isolate the vibrations from a pump running at 1,800 rpm with a load of 5 kg on each mount.
The frequency of the vibrations produced by the pump is 1,800 rpm/60 seconds = 30 Hz.
Therefore, a mount with a natural frequency of 30 Hz/2 = 15 Hz or less should be selected.
In this case, BBS25D013 (natural frequency of 13 Hz when under a load of 5 kg) and BBS35D007 (natural frequency of 11 Hz when under a load of 5 kg) are suitable.

Graph showing the relationship between natural frequency of each mount and mounted load

Application Examples

Aim：Isolate vibrations from a compressor
Method：Install 4 of the BBS35D013 built-in vibration isolation mounts with stopper between the compressor and the base.
Result：The vibrations transmitted from the compressor to the base were successfully reduced.
(The following graph shows the vibration acceleration in the vertical direction as measured at the top of the base.)

Before installation After installation

Precautions for Use

・ If the vibration frequency is 2 times the natural frequency of the mount or less, the vibrations will be amplified.
・ Use the mounts inside the load tolerance range. Furthermore, install such that the load is in the vertical/compressive direction. If the load is too light or too heavy, or a tensile load is applied, the mounted object will make contact with the stoppers and the eff ectiveness will be lost. Furthermore, if the mounted object creates large vibrations, the mounted object may make contact with the stopper and might not be able to be used.
・ The purpose of the stopper mechanism is to reduce the risk of falling over. It does not guarantee safety. No liability will be born for accidents or damages.

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