INDUSTRY COMPONENT

Vibration dampening pads

Specialized pads that isolate and absorb compressor vibrations in refrigeration systems to reduce noise and prevent structural damage.

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Component Specifications

Definition
Vibration dampening pads are engineered elastomeric components installed between the refrigerator compressor and its mounting bracket. They function as passive vibration isolators that decouple the compressor's mechanical vibrations from the refrigerator cabinet structure through viscoelastic energy dissipation and impedance mismatch principles. These pads reduce transmitted vibrations by 70-90% across typical compressor operating frequencies (30-120 Hz), preventing resonance in cabinet panels and minimizing acoustic noise emission.
Working Principle
Operates on vibration isolation principles: 1) Mass-spring-damper system where the pad's elasticity creates a low natural frequency below excitation frequencies, 2) Viscoelastic material properties convert vibrational energy into heat through hysteresis, 3) Impedance mismatch between compressor metal and pad material reflects vibrational waves back to source.
Materials
Typically molded from nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), or silicone compounds with Shore A hardness 40-60, temperature resistance -40°C to +120°C, oil-resistant formulations for compressor applications. May include fiber reinforcement or metal inserts for mounting.
Technical Parameters
  • Thickness 8-15 mm
  • Load Capacity 15-30 kg per pad
  • Compression Set <15% after 22h at 70°C
  • Transmissibility <0.3 at 50 Hz
  • Dynamic Stiffness 8-15 N/mm
  • Natural Frequency 10-20 Hz
  • Flammability Rating UL94 HB
  • Operating Temperature -30°C to +100°C
Standards
ISO 10846-1, ISO 2017, DIN 53571, ASTM D395

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Vibration dampening pads.

vibration isolation pads compressor mounting pads refrigerator noise reduction anti-vibration pads elastomeric dampers NVH control mechanical vibration isolation Vibration dampening pads Vibration dampening pads in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Refrigerator Compressor Mounting Bracket

Structural bracket for securing compressor units in refrigeration appliances.

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Engineering Analysis

Risks & Mitigation
  • Material degradation from oil exposure
  • Over-compression leading to reduced effectiveness
  • Incorrect hardness selection causing resonance
  • Thermal aging in high-temperature environments
  • Chemical incompatibility with compressor lubricants
FMEA Triads
Trigger: Material thermal aging
Failure: Increased stiffness and reduced damping capacity
Mitigation: Use temperature-resistant compounds (EPDM/silicone) and conduct accelerated aging tests per ISO 188
Trigger: Incorrect installation torque
Failure: Over-compression or loose mounting causing rattling
Mitigation: Implement torque-controlled assembly (2-4 Nm typically) and visual inspection standards
Trigger: Oil absorption in rubber compounds
Failure: Swelling and permanent deformation
Mitigation: Select oil-resistant NBR formulations and conduct compatibility testing with compressor lubricants

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5 mm thickness, ±10% dynamic stiffness, ±5% damping coefficient
Test Method
ISO 10846-1 for vibration transmissibility, ASTM D395 for compression set, ISO 815 for compression stress relaxation

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

How often should refrigerator vibration pads be replaced?

Typically every 5-7 years or when visible cracking, permanent deformation exceeding 20%, or compression set over 25% occurs. Regular inspection during maintenance is recommended.

Can universal vibration pads be used for all compressor models?

No, pads must match specific load requirements, mounting configuration, and temperature range. Using incorrect pads can reduce effectiveness by 40-60% and potentially cause premature failure.

What's the difference between isolation and damping in these pads?

Isolation prevents vibration transmission through frequency separation, while damping dissipates energy through material hysteresis. Quality pads provide both functions simultaneously.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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Vibration Dampeners Vibration Dampening Pads/Inserts