VMC Group LR Series Low Radial Low Frequency Elastomeric Shock and Vibration Isolators are commonly found in the power train, APU, weapon and electronic systems of tracked vehicles.

The LR Series is a rugged, low profile isolator that can be focused to decouple a system for better stability and  isolation. At maximum rated load, the isolator provides an axial to radial stiffness ratio of 6:1 - offering excellent structure-borne noise isolation in a variety of applications.

The LR Series provides a low profile, sturdy construction that includes a corrosion-resistant coating on all metal surfaces. The structural sections are made of carbon steel for excellent strength and durability. 

The elastomeric elements resist oil, ozone and most solvents - providing optimum resilience in nearly all environments. When used with a snubbing washer, LR Series Isolators offer a failsafe design. The operating temperature of -20⁰F to +180⁰F offers continuous operation in these ambient conditions.

Features & Benefits

  • Static load range from 20 - 400 lbs. offers a wide range of application flexibility
  • Low profile design provides installation in space restricted applications
  • Rugged, all-bonded construction provides durability in most environmental conditions
  • Damping ratio C/Cc = .10 (transmissibility approximately 5:1 at resonance)
  • Axial to radial stiffness of 6:1 provides excellent structure-borne noise isolation


  • Power train
  • APU
  • Weapons
  • Electronic systems




The engineers we employ hold the highest industry-recognized credentials in structural analysis, elastomer development and system dynamics.


We are the first ISO accredited PCA ISO-17065, third-party certification body for special seismic certification of non-structural building components and their mounting configurations by the ICC’s International Accreditation Service.

Test & Measurement

We are the only ISO 17025:2005 Accredited Seismic Simulation Test Laboratory with a triaxial shake table owned and operated by California licensed Structural engineers.

Testing Services Update
DCL now offers Nuclear Qualification and Testing services.

In partnership with Greenberry Industrial, we now offer testing services that meet the requirements of ASME NQA-1.

Call for more information.