Type B Bobbins

Cylindrical anti-vibration bobbins with male and female fixings, offering a compact and versatile solution for vibration isolation of machinery and equipment.

The AMC-MECANOCAUCHO® Type B Bobbins are rubber-metal anti-vibration elements designed to provide a simple, compact and reliable flexible connection between equipment and its supporting structure.

They consist of a cylindrical elastomer body vulcanised between two parallel metal parts, with a threaded stud on one side and a female thread on the other. This configuration makes them particularly easy to integrate into assemblies requiring different fixing arrangements on each side.

Depending on the installation arrangement, these bobbins can operate mainly in compression, shear or a combination of both, effectively reducing the transmission of vibration and structure-borne noise.

Available in a wide range of dimensions, rubber hardnesses and stiffnesses, Type B Bobbins are particularly suitable for engines, pumps, fans, compressors, electrical and electronic equipment and light industrial machinery.

BOBBINS TYPE B 12-25

BOBBINS TYPE B 30-40

BOBBINS TYPE B 50-75

BOBBINS TYPE B 80-150

Type	Code	A(mm)	B(mm)	C(mm)	H(mm)	Weight(kg)	COMPRESSIONMax. Load (daN)	COMPRESSION Deflection (mm)	SHEAR Max. Load (daN)	SHEAR Deflection (mm)
BOBBINS TYPE B 12-25	121001	12,5	10	M-5	10	0.005	12	0,5	1,5	0,5
	121002	12,5	15	M-5	10	0.006	10	0,5	1,5	0,5
	121003	12,5	20	M-5	10	0.007	8	1	1,5	0,5
	121011	16	10	M-5	12	0.008	20	0,5	2,5	0,5
	121012	16	15	M-5	12	0.01	20	2	2,5	1,5
	121013	16	20	M-5	12	0.011	15	2,5	2,5	2
	121014	16	25	M-5	12	0.012	15	3	2	2
	121022	20	15	M-6	16,5	0.017	35	2	5	1,5
	121023	20	20	M-6	16,5	0.018	30	3,5	5	2,5
	121024	20	25	M-6	16,5	0.02	30	5,5	4,5	4
	121025	20	30	M-6	16,5	0.022	25	6	4,5	4
	121172	25,5	15	M-6	18	0.025	60	2,5	8	2
	121173	25,5	20	M-6	18	0.027	55	3,5	8	2,5
	121174	25,5	25	M-6	18	0.031	50	5	8	3,5
	121175	25,5	30	M-6	18	0.038	50	6	8	4
	121031	25,5	15	M-8	20	0.036	60	2,5	8	2
	121032	25,5	19	M-8	20	0.04	55	3,5	8	2,5
	121033	25,5	22	M-8	20	0.04	50	4	8	3
	121034	25,5	25	M-8	20	0.042	50	5	8	3,5
	121035	25,5	30	M-8	20	0.045	50	6	8	4
	121036	25,5	40	M-8	20	0.053	50	7	10	5

Type	Code	A(mm)	B(mm)	C(mm)	H(mm)	Weight(kg)	COMPRESSIONMax. Load (daN)	COMPRESSION Deflection (mm)	SHEAR Max. Load (daN)	SHEAR Deflection (mm)
BOBBINS TYPE B 30-40	121041	30	15	M-8	20	0.051	90	1	11	1
	121042	30	22	M-8	20	0.057	80	3	11	2,5
	121186	30	25	M-8	20	0.053	75	4,5	11	3,5
	121043	30	30	M-8	20	0.064	70	5,5	11	4,5
	121044	30	40	M-8	20	0.072	60	7,5	11	6
	121193	40	20	M-8	20	0.082	160	2	20	1,5
	121194	40	25	M-8	20	0.087	150	4	20	3
	121195	40	28	M-8	20	0.094	150	5	20	4
	121196	40	30	M-8	20	0.094	150	6	30	5
	121197	40	35	M-8	20	0.104	120	7	20	5,5
	121198	40	40	M-8	20	0.111	120	8,5	20	7
	121199	40	45	M-8	20	0.12	120	9	20	7
	121051	40	20	M-10	25	0.092	160	2	20	1,5
	121191	40	25	M-10	25	0.098	150	4	20	3
	121052	40	28	M-10	25	0.106	150	5	20	4
	121192	40	30	M-10	25	0.103	150	6	30	5
	121053	40	35	M-10	25	0.118	120	7	20	5,5
	121054	40	40	M-10	25	0.125	120	8,5	20	7
	121055	40	45	M-10	25	0.13	120	9	20	7

Type	Code	A(mm)	B(mm)	C(mm)	H(mm)	Weight(kg)	COMPRESSIONMax. Load (daN)	COMPRESSION Deflection (mm)	SHEAR Max. Load (daN)	SHEAR Deflection (mm)
BOBBINS TYPE B 50-75	121201	50	20	M-10	25	0.12	300	3	25	2,5
	121061	50	25	M-10	25	0.145	300	3,5	25	3
	121202	50	30	M-10	25	0.155	275	5	25	4,5
	121062	50	35	M-10	25	0.168	250	7	25	6,5
	121203	50	40	M-10	25	0.175	210	8,5	25	7,5
	121063	50	45	M-10	25	0.192	190	9	25	8
	121204	50	50	M-10	25	0.192	170	9,5	25	8,5
	121064	50	60	M-10	25	0.223	150	10	25	9
	121071	60	25	M-10	25	0.21	400	3	30	2,5
	121072	60	36	M-10	25	0.247	300	6	30	5,5
	121073	60	45	M-10	25	0.278	250	8	30	7
	121074	60	60	M-10	25	0.311	200	9	30	8
	121081	70	35	M-10	25	0.316	450	6	35	5,5
	121082	70	50	M-10	25	0.38	350	7,5	35	7
	121083	70	60	M-10	25	0.42	300	8	35	7
	121084	70	70	M-10	25	0.483	300	9,5	35	8,5
	121091	75	25	M-12	30	0.306	650	3,5	37	3
	121092	75	40	M-12	30	0.385	500	7,5	37	7
	121093	75	45	M-12	30	0.41	500	9	37	8
	121094	75	55	M-12	30	0.46	450	10	37	9

Type	Code	A(mm)	B(mm)	C(mm)	H(mm)	Weight(kg)	COMPRESSIONMax. Load (daN)	COMPRESSION Deflection (mm)	SHEAR Max. Load (daN)	SHEAR Deflection (mm)
BOBBINS TYPE B 80-150	121101	80	30	M-14	35	0.45	950	4	40	4
	121102	80	40	M-14	35	0.505	600	7	40	7
	121103	80	50	M-14	35	0.547	550	8	40	8
	121104	80	55	M-14	35	0.58	550	8,5	40	8,5
	121105	80	70	M-14	35	0.66	500	12	40	12
	121106	80	75	M-14	35	0.71	450	12,5	40	12,5
	121111	95	40	M-16	45	0.76	1200	7	60	7
	121112	95	55	M-16	45	0.88	1000	9	60	9
	121113	95	60	M-16	45	0.925	800	11	60	11
	121114	95	75	M-16	45	1.05	700	13	60	13
	121121	105	50	M-16	45	0.92	1200	6	80	6
	121122	105	75	M-16	45	1.2	1000	8	80	8
	121123	105	100	M-16	45	1.444	800	11	80	11
	121131	120	50	M-16	45	1.09	1500	6,5	100	6,5
	121132	120	75	M-16	45	1.43	1200	10	100	10
	121133	120	100	M-16	45	1.77	1000	12	100	12
	121142	130	50	M-16	45	1.591	1600	9	120	9
	121143	130	75	M-16	45	1.96	1450	13	120	13
	121144	130	100	M-16	45	2.426	1200	16	120	16
	121151	150	50	M-20	50	3.301	1800	9	140	9
	121152	150	75	M-20	50	4.001	1650	13	140	13
	121153	150	100	M-20	50	3.7	1400	16	140	16

Technical characteristics

Depending on the size of the rubber block, the AMC Mecanocaucho® bobbing has more or less elasticity, which is greater particularly in all directions perpendicular to its axis (shear). The AMC Mecanocaucho® bobbing thus makes it possible to make joins which permit major relative movements, up to several millimetres (in the case of heat expansion, chassis deformations, etc.). The AMC Mecanocaucho® bobbing serves very well for the vibration isolation of machines where the vibrations are perpendicular to their axis, unless these stresses are too much when applied in this direction.

Operation and Assembly

Its elasticity is much greater in all the directions parallel to the armatures than in the perpendicular direction. The rubber works based on compression or shear depending on the direction it is placed at installation time. This direction is made according to the use and the objective. It is therefore installed with nuts or screws depending on the model chosen, with one part attached to the fixed chassis and the other to the machine to be suspended.

Applications

Garage door vibration isolation

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Radiator mounting and vibration isolation

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Vibration protection of sensitive equipment

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Compressor Vibration Isolation in Public Transport Vehicles

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Advantages

Easy Installation

This mount requires minimal structural modifications, making installation quick and straightforward.