Bushings, Grommets

Image Part Number Description / PDF Quantity Rfq
28632.6

28632.6

Conta-Clip

KES 16/24 GR

14

87141720

87141720

Murrplastik

KDT/X-FDA 07 GROMMET 07-08MM

144

2584590000

2584590000

Weidmuller

SEALING ELEMENT GRAY, SMALL

12960

GR3091A

GR3091A

Richco, Inc. (Essentra Components)

GROMMET 0.250" RUBBER BLACK

4898

22MP05626W

22MP05626W

Richco, Inc. (Essentra Components)

BUSHING 0.375" NYLON WHITE

2000

494635

494635

Richco, Inc. (Essentra Components)

HOLE MOUNTED MEMBRANE ENTRY GROM

177

SNGS-4B

SNGS-4B

Richco, Inc. (Essentra Components)

GROM EDGE SLOT NYLON BLK 1=100'

14

2584400000

2584400000

Weidmuller

SEALING ELEMENT GRAY, LARGE

12090

UFE 54PM8X5

UFE 54PM8X5

PFLITSCH

PG 21 8X5MM U 20.2

25

GEE36F-C

GEE36F-C

Panduit Corporation

GROMMET EDGE SLOT NAT 1=100'

63

04MP0250TLB

04MP0250TLB

Richco, Inc. (Essentra Components)

THREADED LAMPCORD BUSHING 1/4 NP

992

87141764

87141764

Murrplastik

KDT/X-FDA 29 GROMMET 29-30 MM

120

MHB-47

MHB-47

SAB North America

MULTI-HOLE BUSHING: 4X8 FITS SAB

168

R3L1-C

R3L1-C

Richco, Inc. (Essentra Components)

GROMMET SPLIT 0.188" NYLON WHITE

1254

UFE 54PM1X4/1X5/1X13

UFE 54PM1X4/1X5/1X13

PFLITSCH

PG 21 1X4/1X5/1X13MM

49

GR3410A

GR3410A

Richco, Inc. (Essentra Components)

GROMMET 0.750" RUBBER BLACK

0

SRB-R-9

SRB-R-9

Richco, Inc. (Essentra Components)

BUSHING W/STR RELIEF NYLON BLACK

2665

PR2VGK

PR2VGK

Panduit Corporation

PATCHRUNNER 2 PASS-THROUGH HOLE

1120

GES62FR-CY

GES62FR-CY

Panduit Corporation

GROMMET EDGE FLAME RTRDT 1=100'

236

0801687

0801687

Phoenix Contact

FRAME GROMMET ELASTOMER GRAY

8

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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