CUP STYLE MOUNTS: S Mount Series

Low-frequency variable air-damped mounts for a high level of vibration isolation.
Barry S-Mounts are air-damped isolators and are designed to provide the highest degree of vibration isolation for sensitive commercial and military airborne equipment. S-Mounts are particularly effective at isolating low level vibration.

Natural Frequency	7-10 Hertz
Transmissibility at Resonance	3.5 Max. at sea level Approx. 4.3 at 50,000 feet
Resilient Element	Air-damped spring
Standard Materials	Varies with model
Weight	S22 = 0.5 oz. S44 = 2.5 oz. S64 = 5.0 oz.

Dimensions and Performance Characteristics
S22 \| S44 \| S64

Applications

Military & commercial airborne equipment
Computers and storage devices
Optical devices & instrumentation
Lasers
Clinical diagnostic equipment

Features

Low resonant transmissibility
2 stage air-damping
Low natural frequency isolation
Axial to radial stiffness ratio of 4:1
Fail safe construction

Benefits

Up to 90% isolation efficiency with inputs as low as 40 Hz.
Variable air-damping provides increasing isolation efficiency in high-frequency regions, even when input excursions become small
Meets safety requirements of MIL-E-5400 (30G 11ms half sine pulse)

Load Range

S22 = 6 load ratings from:
.3 to 3 lbs. per mount
S44 = 7 load ratings from:
.25 tp 9 lbs. per mount
S64 = 7 load ratings from:
2.0 to 25 lbs. per mount

Environmental Data

Silicone Air Chambers and Snubbers have operating temperature ranges of -67ºF to +300ºF (-55ºC to +150ºC).
Mounts meet all applicable standards of MIL-C-172 and are fungus and oil resistant.

440 Industrial Drive • North Wales, PA 19454-4151 • 800.422.3274 • 215.699.0940 • Fax 215.699.0944