Bushings, Grommets

Image Part Number Description / PDF Quantity Rfq
87171016

87171016

Murrplastik

CABLE ENTRY PLATE KDL, CUT-OUT S

106

MHB-23

MHB-23

SAB North America

MULTI-HOLE BUSHING: 5X4 FITS SAB

88

23MP02P40

23MP02P40

Richco, Inc. (Essentra Components)

BUSHING W/STR RELIEF NYLON BLACK

3251

1410408

1410408

Phoenix Contact

CES-SRG-BK-2X4

5

0801656

0801656

Phoenix Contact

FRAME GROMMET RUBBER BLACK

0

SRB-R-2

SRB-R-2

Richco, Inc. (Essentra Components)

BUSHING W/STR RELIEF NYLON BLACK

0

87141240

87141240

Murrplastik

MEDIUM GROMMET KDT/X 17-18MM

78

28651.4

28651.4

Conta-Clip

KES-R 14/24 BK

20

28642.6

28642.6

Conta-Clip

KES-GB 16/24 GR

20

SNGS-2.5

SNGS-2.5

Richco, Inc. (Essentra Components)

GROMM EDGE SLOT NYLON NAT 1=100'

2

UFE 54P20

UFE 54P20

PFLITSCH

PG 21 KAD 20,0- 18,0MM

87

SPGSG-2

SPGSG-2

Richco, Inc. (Essentra Components)

GROM EDGE SLOT PE NATURAL 1=100'

89

5110

5110

Ohmite

RUBBER GROMMET BLACK FOR CUT-OUT

623

2583630000

2583630000

Weidmuller

SEALING ELEMENT BLACK, LARGE

109210

MHB-29

MHB-29

SAB North America

MULTI-HOLE PLUG: 3X6.6 FITS SAB

857

83723460

83723460

Murrplastik

CONDUIT END GROMMET FOR M32 COND

75

22MP03123

22MP03123

Richco, Inc. (Essentra Components)

SNAP FIT BUSHING: .187 IN (4.7 M

7714

22MP08708W

22MP08708W

Richco, Inc. (Essentra Components)

BUSHING 0.500" NYLON WHITE

500

2583680000

2583680000

Weidmuller

SEALING ELEMENT BLACK, LARGE

110

22MP22529

22MP22529

Richco, Inc. (Essentra Components)

BUSHING 1.860" NYLON BLACK

970

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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