Bushings, Grommets

Image Part Number Description / PDF Quantity Rfq
1301800314

1301800314

Woodhead - Molex

O-RING .804 ID X .104 THK

0

1301800315

1301800315

Woodhead - Molex

GROMMET (107)- F2 BLACK MAX-LOC(

0

1301800278

1301800278

Woodhead - Molex

GROMMET-816- F3 .562 BLACK

0

1301800317

1301800317

Woodhead - Molex

GROMMET (107B)- F2 BLACK MAX-LOC

0

1301800403

1301800403

Woodhead - Molex

GROMMET-922B-F2.312 BLACK

0

1301800336

1301800336

Woodhead - Molex

GROMMET(114A) - F0 .200 GRAY MAX

0

1301800320

1301800320

Woodhead - Molex

GROMMET 798- F2 .625

0

1301800413

1301800413

Woodhead - Molex

GROMMET-974E- F4 .875 BLACK

0

1301800318

1301800318

Woodhead - Molex

GROMMET (107C)- F2 ORANGE MAX-LO

0

1301800395

1301800395

Woodhead - Molex

GROMMET-962E- F3 BLACK MAX-LOC.2

0

1301800280

1301800280

Woodhead - Molex

GROMMET-816B- F3 .687 GREEN

0

1301800282

1301800282

Woodhead - Molex

GROMMET-974B- F4 .687 GREEN

0

1301800334

1301800334

Woodhead - Molex

O-RING 1.370 ID X .104 THK

0

1301800393

1301800393

Woodhead - Molex

GROMMET-622- F2 BLACK - OVAL MAX

0

1301800341

1301800341

Woodhead - Molex

GROMMET (457B)- F7 2.062 REMKESR

0

1301800319

1301800319

Woodhead - Molex

GROMMET (107D)- F2 YELLOW MAX-LO

0

1301800337

1301800337

Woodhead - Molex

GROMMET(114B) - F0 .265 GREEN MA

0

1301800308

1301800308

Woodhead - Molex

GROMMET-872- F5 .875 ORANGE MAX-

0

1301800402

1301800402

Woodhead - Molex

GROMMET-922A-F2.250 ORANGE MAX-L

0

1301800166

1301800166

Woodhead - Molex

GROMMET - .312 ID BLACK (FORPLAS

0

Bushings, Grommets

1. Overview

Management bushings and grommets are passive cable management components designed to protect wires, cables, and conduits where they pass through panels, walls, or enclosures. These components prevent mechanical damage, reduce vibration stress, and maintain environmental seals. Their importance in modern electrical, automotive, aerospace, and industrial systems lies in enhancing system reliability, safety, and longevity while simplifying maintenance and compliance with regulatory standards.

2. Main Types & Functional Classification

TypeFunctional FeaturesApplication Examples
Rubber BushingsElastomeric material for vibration damping, waterproof sealingAutomotive wiring harnesses, marine equipment
Plastic GrommetsLightweight, chemical-resistant, low-friction surfaceConsumer electronics, HVAC systems
Metallic BushingsHigh mechanical strength, EMI shielding capabilitiesAerospace avionics, industrial machinery
Multi-hole BushingsIntegrated cable separation, strain reliefData centers, control panels
Sealed GrommetsIP65+ protection rating, dust/water ingress preventionOutdoor telecom cabinets, renewable energy systems

3. Structure & Composition

Typical bushings/grommets feature: - Base Material: Rubber (EPDM, silicone), thermoplastics (PVC, nylon), or metal alloys (aluminum, steel) - Geometry: Cylindrical, rectangular, or custom profiles with edge flanges - Internal Features: Cable retention ribs, anti-rotation tabs, integrated seals - Surface Treatment: UV-resistant coatings, flame-retardant additives, conductive plating

4. Key Technical Specifications

ParameterDescriptionImportance
Material Temperature Range-40 C to +150 C (varies by material)Determines environmental compatibility
Protection Rating (IP)IP54 to IP68Defines ingress protection level
Size Range3mm to 150mm diameterAffects cable compatibility
Compression Force5-50N/mm Influences sealing performance
Flammability RatingUL94 V-0, VW-1Safety compliance indicator
Installation MethodPush-in, screw-mount, adhesiveImpacts maintenance efficiency

5. Application Fields

  • Industrial: PLC control cabinets, robotic arms
  • Telecom: 5G base stations, fiber distribution hubs
  • Transportation: Electric vehicle battery packs, railcar wiring
  • Energy: Solar inverters, wind turbine nacelles
  • Commercial: Server racks, medical imaging equipment

6. Leading Manufacturers & Products

ManufacturerKey ProductsTechnical Highlights
HellermannTytonSealed Cable Glands Series 680IP68 rating, -40 C cold-crack resistance
PanduitMulti-Cable Transit BushingsUL94 V-0 flame rating, 20+ cable capacity
3MScotch Cable GrommetsSelf-sealing silicone material, EMI shielding
TE ConnectivityDEUTSCH DuraGrommet10,000 insertion durability, aerospace qualified

7. Selection Recommendations

Key selection criteria: - Environmental factors (temperature, UV exposure, chemical contact) - Cable diameter and quantity (allow 20% tolerance) - Required protection rating (IP65+ for outdoor use) - Mechanical stress requirements (vibration, compression) - Regulatory compliance (REACH, RoHS, NEC Article 300) - Installation accessibility (permanent vs. serviceable connections)

8. Industry Trends & Developments

Emerging trends include: - Integration with smart sensors for cable health monitoring - Adoption of bio-based polymers for sustainability - Miniaturization for high-density data center applications - Additive manufacturing for custom geometries - Enhanced EMI shielding solutions for 5G infrastructure - Self-healing materials for extreme environments

9. Case Studies

Automotive: Tesla Model Y uses multi-layer silicone bushings to protect battery harnesses against vibration and thermal cycling.
Renewables: Vestas wind turbines employ IP66-rated grommets to maintain nacelle sealing under harsh weather.
Data Center: Google's server racks utilize Panduit multi-cable bushings to achieve 40% faster deployment times.

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