Bushings, Grommets

Image Part Number Description / PDF Quantity Rfq
87141744

87141744

Murrplastik

KDT/X-FDA 19 GROMMET 19-20 MM

144

87121232

87121232

Murrplastik

SMALL GROMMET KDT/ZE 14-15MM

104

87121284

87121284

Murrplastik

SMALL GROMMET KDT/ZE 2X4MM OP

92

87171218

87171218

Murrplastik

SMALL GROMMET KDT/Z 6-7MM RAN

413

87141226

87141226

Murrplastik

SMALL GROMMET KDT/X 10-11MM R

141

87121234

87121234

Murrplastik

SMALL GROMMET KDT/ZE 15-16MM

271

87141718

87141718

Murrplastik

KDT/X-FDA 06 GROMMET 06-07 MM

134

83723464

83723464

Murrplastik

CONDUIT END GROMMET FOR M50 COND

10

87121212

87121212

Murrplastik

SMALL GROMMET KDT/ZE 4-5MM RA

0

87121290

87121290

Murrplastik

SMALL GROMMET KDT/ZE 2X7MM OP

27

87121222

87121222

Murrplastik

SMALL GROMMET KDT/ZE 9-10MM RA

170

83723462

83723462

Murrplastik

CONDUIT END GROMMET FOR M40 COND

25

87663032

87663032

Murrplastik

KDP 90/28 ALU CABLE ENTRY PLATE

11

83723458

83723458

Murrplastik

CONDUIT END GROMMET FOR M25 COND

75

87121252

87121252

Murrplastik

LARGE GROMMET KDT/ZE 24-25MM

30

87121216

87121216

Murrplastik

SMALL GROMMET KDT/ZE 6-7MM RA

394

87121266

87121266

Murrplastik

SMALL BTK/E DUMMY GROMMET FOR KD

3434

87141730

87141730

Murrplastik

KDT/X-FDA 12 GROMMET 12-13 MM

144

87141742

87141742

Murrplastik

KDT/X-FDA 18 GROMMET 18-19 MM

144

87171818

87171818

Murrplastik

SMALL GROMMET KDT/Z-EMC 6-7MM

200

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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