Bushings, Grommets

Image Part Number Description / PDF Quantity Rfq
DG-19429

DG-19429

Richco, Inc. (Essentra Components)

GROMMET 0.610" PVC BLACK

827

87141230

87141230

Murrplastik

MEDIUM GROMMET KDT/X 12-13MM

80

GFA-N6B

GFA-N6B

Richco, Inc. (Essentra Components)

GROMMET FLIP 0.376" NYLON GREEN

1500

52220065

52220065

LAPP

BUSHING POLYCARBONATE BLACK

13

1410563

1410563

Phoenix Contact

FRAME GROMMET RUBBER BLACK

30

ASB1A

ASB1A

Richco, Inc. (Essentra Components)

ARMOR BUSHING, 3/8 IN

18989

28581.6

28581.6

Conta-Clip

KDS LARGE SEALING SLEEVE 20MM

93

23MP30-10

23MP30-10

Richco, Inc. (Essentra Components)

BUSHING W/STR RELIEF NYLON BLACK

3500

2584900000

2584900000

Weidmuller

MULTIPLE SEALING ELEMENT GRAY, S

51400

778

778

Keystone Electronics Corp.

GROMMET ADJ 0.810" RUBBER BLACK

50099500

GFA-N14B

GFA-N14B

Richco, Inc. (Essentra Components)

GROMMET FLIP 0.855" NYLON GREEN

0

RFG5DY

RFG5DY

Panduit Corporation

RAISED FLOOR AIR SEALING GROMMET

11221

1410398

1410398

Phoenix Contact

CES-SRG-BK-2X3

272

87121254

87121254

Murrplastik

LARGE GROMMET KDT/ZE 25-26MM

30

GRO068031A

GRO068031A

Richco, Inc. (Essentra Components)

GROMMET 0.563" PVC BLACK

0

GRS2050121A

GRS2050121A

Richco, Inc. (Essentra Components)

GROMMET SLEEVE,BLACK,PVC,.500 IN

2

87121260

87121260

Murrplastik

LARGE GROMMET KDT/ZE 28-29MM

30

0801639

0801639

Phoenix Contact

FRAME GROMMET RUBBER BLACK

17

0801709

0801709

Phoenix Contact

FRAME GROMMET ELASTOMER GRAY

26

28609.6

28609.6

Conta-Clip

KDS SMALL SEALING SLEEVE 15MM

145

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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