JGD-D type rubber sandwich vibration isolator is composed of inner and outer steel sleeves and middle synthetic rubber, after sulfurization, its shape is hollow cone. As the rubber parts bear shearing force, it has large distortion range and lower nature frequency. Its working temperature range is -15℃～+60℃, if the temperature is changed, its rigidity will be changed accordingly. Subsidence ratio is C/Cc≥0.07. It has very good active vibration isolation for power generation machine such as water pump, compressor, ventilator, generating set, refrigerator, high-precision device, air conditioning etc. Besides, for instruments and meters passive vibration isolation and noise reduction, it also has very good effect. 

 

Type	Ourter size					Rated load (kg)	stiffness(kf/cm2 )	deformation (mm)	natural frequency (Hz)	optimum loading (kg)
	M	D	D1	H	D.
JGD-A	M10	100	80	43	8.5	5～15	20	2～8	8～14	10
JGD-B	M10	100	80	43	8.5	10～30	36			20
JGD-A	M12	150	130	65	8.5	20～60	60	4～12	7～12	40
JGD-B	M12	150	130	65	8.5	40～120	90			80
JGD-A	M16	200	170	87	12.5	80～240	120	5～16	6～11	160
JGD-B	M16	200	170	87	12.5	160～480	200			320
JGD-A	M20	290	260	133	12.5	320～960	300	8～24	5～9	640
JGD-B	M20	290	260	133	12.5	640～1920	650			1280