CUP STYLE MOUNTS: L Mount Series

Low-frequency, highly damped mounts for a high level of vibration isolation.
Barry L-Mounts increase equipment reliability and extend component-life by providing isolation for frequencies as low as 10 Hertz and exhibiting low transmissibility at resonance (below 2.5) with .60" double amplitude vibratory input.

Natural Frequency	7-10 Hertz
Transmissibility at Resonance	2.5
Resilient Element	Friction damped spring
Standard Materials	Aluminum
Weight	L21 = 0.031 lbs. L22 = 0.031 lbs. L44 = 0.98 lbs. L64 = 0.226 lbs.
Load Range \| MS Designations

Dimensions and Performance Characteristics
L21 \| L22 \| L44 \| L64

Applications

Avionic equipment in propeller driven aircraft
Sensitive instrumentation and medical equipment
Stationary applications where cost effective, low frequency isolation is required

Features

Marking of mounts with military designations available on special order
Aluminum construction
Axial to radial stiffness of 4:1
For base mounting only
Fail safe construction

Benefits

Isolation performance maintained in attitudes up to 10º from the horizontal
Low ratio of horizontal and vertical stiffness which holds transmissibility in rocking modes to unusually low magnitudes
Meets safety requirements of MIL-E-5400 (30G 11ms half sine pulse)

Load Range

L21/L22 = 7 load ranges from:
.35 - 4 lbs. per mount
L44 = 7 load ratings from:
.25 - 10 lbs. per mount
L64 = 7 load ratings from:
2.0 - 40 lbs. per mount

Environmental Data

Operating temperature ranges of -67ºF to +250ºF (-55ºC to +120ºC).
Meets vibration and shock requirements of MIL-C-172C.
L44 and L64 isolators are known as "MS" (Military Standard) mounts and appear on QPL's.

440 Industrial Drive • North Wales, PA 19454-4151
Call 1.800.422.3274 • Fax 1.215.699.0944