Bushings, Grommets

Image Part Number Description / PDF Quantity Rfq
87171014

87171014

Murrplastik

CABLE ENTRY PLATE KDL, CUT-OUT S

29

87301150

87301150

Murrplastik

KDP/N 24/17 CABLE ENTRY PLATE FO

18

87121295

87121295

Murrplastik

SMALL GROMMET KDT/ZE 4X5MM OP

202

87171812

87171812

Murrplastik

SMALL GROMMET KDT/Z-EMC 3-4MM

0

87172020

87172020

Murrplastik

LARGE GROMMET KDT/Z-EMC, 20-21MM

0

87171018

87171018

Murrplastik

CABLE ENTRY PLATE KDL, NON-STD C

25

87121296

87121296

Murrplastik

SMALL GROMMET KDT/ZE 4X6MM OP

34

87301151

87301151

Murrplastik

KDP/N 24/17-1 CABLE ENTRYPLATE F

35

87172036

87172036

Murrplastik

LARGE GROMMET KDT/Z-EMC, 28-29MM

0

87171816

87171816

Murrplastik

SMALL GROMMET KDT/Z-EMC 5-6MM

0

87121280

87121280

Murrplastik

SMALL GROMMET KDT/ZE, 2 ASI CABL

0

87171836

87171836

Murrplastik

SMALL GROMMET KDT/Z-EMC, 15-16MM

0

87121282

87121282

Murrplastik

SMALL GROMMET KDT/ZE, ASI CABLE

48

87171820

87171820

Murrplastik

SMALL GROMMET KDT/Z-EMC 7-8MM

50

87301080

87301080

Murrplastik

KDP 24/15/02 CABLE ENTRY PLATE F

5

87141266

87141266

Murrplastik

MEDIUM BTG/X DUMMY GROMMET FOR K

148

87301044

87301044

Murrplastik

KDP/R M63/19 ROUND CABLE ENTRY F

15

87301032

87301032

Murrplastik

KDP/R M50/6 ROUND CABLE ENTRY FO

30

87303020

87303020

Murrplastik

KDP/Z 24/14-1 CABLE ENTRY PLATE

29

87171834

87171834

Murrplastik

SMALL GROMMET KDT/Z-EMC, 14-15MM

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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