Two new series of base-mounted stainless steel knitted mesh vibration mounts introduced by Stock Drive Products are designed for marine, aerospace and machine shop applications where corrosive environments could cause conventional isolation materials to fail or operate at reduced efficiency. The stainless steel springs and resilient knitted pads are unaffected by oil, water, ozone, bacteria, corrosion, or temperature extremes (no efficiency change between -94ºF and +347ºF (-70ºC to +175ºC).

The light-duty mounts, identified as the A10Z22 series, are designed for marine, aircraft and other mobile applications and conform to MIL-E-5400 and AIR 7303 military specifications. The series consists of 10 different mounts ranging in static load capacities from 1.55 lbs. to 132.30 lbs. (0.7 kg to 60 kg). The units are constructed of stainless steel springs and resilient mesh pads which are enclosed in an aluminum alloy base, housing and mounting cap. The dynamic characteristics include a transverse and axial (vertical) ratio stiffness of approximately 1:2.5. Their natural frequency is equal to 7 to 10 Hz vertical and 4.5 to 6 Hz transverse depending on load for a displacement input of ±.030" (±0.75 mm). Transmissibility is less than 4:1. The units with a long cap have a free height of 1.76" (44.6 mm) and units with a short cap have a free height of 1.57" (40 mm) with a base dimension of 2-3/8" sq (60.5 mm sq). Unit weights range from 3.53 to 4.41 oz. (100 - 125 g).

The heavy-duty mounts, identified as the A10Z28 series, are designed for machine tools, motors, generator sets, printing presses, textile machinery and pumps operating above 2,500 RPM. This series consists of 6 different mounts ranging in static load capacities from 10 lbs. to 1000 lbs. (4.55 kg to 453.5 kg). The natural frequency of the units is 13 to 17 Hz for an amplitude of ±.012" (±.3mm). The resilient material used is knitted stainless steel mesh. Aluminum alloy coated with Alochrome 1200 is used for the housings. Unit free height is 1.91" (48.6 mm), with a maximum compressed height of 1.44" (36.6 mm). Base dimensions are 3" sq (76.2 mm). Unit weight is 6.33 oz (180 g).

Detailed specifications are contained in Catalog D790, available free upon request from Stock Drive Products.

SDP 53