Type AB - ROSTA

about product

ROSTA oscillating mountings type AB are maintenance-free elastic rockers for the support or suspension of freely oscillating vibrating equipment with a wide variety of designs and drive systems. They assist the driving forces in the conveying direction and assure good linear guidance of the oscillating part of the machine. The pantograph structure of the oscillating mounting allows large spring deflection under load, which results in low natural frequencies (down to approx. 2.2 Hz) and hence exceptionally high insulation efficiency towards the support structure. The great lateral stability of ROSTA oscillating mountings prevents the wobbling of the screen casing typical of helical spring mountings on passing through the resonant frequency.

The housings of the element sizes AB 15 to 38 are made out of light alloy profile and are equipped with lateral fixation flanges, including the required fixation bores for direct mounting on customers machine part. The mountings AB 45, AB 50 and AB 50-2 have spheroidal graphite iron feet for direct bolting to the screen and the support structure.

The housings of the double rubber suspension units are of aluminium profile for sizes AB 15 to AB 45, and in spheroidal graphite iron for sizes AB 50 and AB 50-2.

All AB oscillating mountings are also available in stainless steel (AISI 304) and interchangeable with the blue AB oscillating mountings!

specifications & cad

ART NR.

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Description	Art. No.	Type	Load capacity G [N]	Natural frequency Gmin. – Gmax. [Hz]	A	A max. load	B	B max. load	C	D	E	F	H	K	L	M	N	Z	Weight [kg]	Note
Free oscillation systems Type AB 15	07 051 056	AB 15	50 - 160	4.0 – 2.8	168	114	70	88	80	ø7	50	65	3	10	40	52	–	65	0.5	* compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB 18	07 051 057	AB 18	120 - 350	3.7 – 2.6	208	146	88	109	100	ø9	60	80	3.5	14	50	67	–	80	1.2	* compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB 27	07 051 058	AB 27	250 - 800	3.7 – 2.7	235	170	94	116	100	ø11	80	105	4.5	17	60	80	–	80	2.2	* compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB 38	07 051 059	AB 38	600 - 1600	3.0 – 2.4	305	225	120	147	125	ø13	100	125	6	21	80	104	40	100	5.1	* compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB 45	07 051 042	AB 45	1200 - 3000	2.8 – 2.3	353	257	141	172	140	13 x 27	115	145	9	28	100	132	58	115	9.5	* compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB 50	07 051 043	AB 50	2500 - 6000	2.4 – 2.1	380	277	150	184	150	17 x 27	130	170	12	35	120	160	60	140	14.5	* compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.
Free oscillation systems Type AB 50-2	07 051 044	AB 50-2	4200 - 10000	2.4 – 2.1	380	277	150	184	150	17 x 27	130	170	12	40	200	245	70	140	22.5	* compression load and cold flow compensation (after approx. 1 year)..Please find additional important data like dynamic spring values and stroke limits in the ROSTA catalogue.