Industry-Verified Manufacturing Data (2026)

Coupling Body

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Coupling Body used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Coupling Body is characterized by the integration of Mounting Flange and Sealing Surface. In industrial production environments, manufacturers listed on CNFX commonly emphasize Cast Iron construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The main structural housing of a utility coupler that contains and protects internal components while providing mounting interfaces.

Product Specifications

Technical details and manufacturing context for Coupling Body

Definition
The coupling body serves as the primary structural component within utility couplers, functioning as the outer casing that encloses and protects internal mechanical elements such as gears, bearings, or hydraulic components. It provides mounting surfaces for connection to other equipment, ensures proper alignment of internal parts, and often incorporates sealing surfaces to prevent fluid or contaminant ingress. In industrial applications, the body maintains structural integrity under operational stresses while facilitating maintenance access.
Working Principle
The coupling body functions as a static structural element that transfers mechanical loads between connected components while housing dynamic internal parts. It maintains geometric stability to ensure proper alignment of rotating or moving elements, provides attachment points for external connections, and often includes features for sealing, lubrication, or cooling. The body's design determines the coupler's overall strength, durability, and compatibility with specific industrial environments.
Common Materials
Cast Iron, Steel Alloy, Aluminum Alloy
Technical Parameters
  • Overall dimensions including length, width, height, and mounting hole patterns (mm) Standard Spec
Components / BOM
  • Mounting Flange
    Provides attachment surface for connecting to equipment
    Material: steel
  • Sealing Surface
    Creates interface for gaskets or seals to prevent leakage
    Material: machined metal
  • Bearing Housing
    Accommodates and supports bearing assemblies
    Material: cast iron or steel
Engineering Reasoning
0-25 MPa (0-250 bar) internal pressure, -40°C to 150°C temperature
Material yield strength threshold: 250 MPa for steel alloys, 150 MPa for aluminum alloys; Fatigue limit: 10^7 cycles at 100 MPa stress amplitude
Design Rationale: High-cycle fatigue from cyclic pressure loading exceeding material endurance limit; Stress corrosion cracking in chloride environments above 60°C
Risk Mitigation (FMEA)
Trigger Misalignment exceeding 0.5° angular or 0.2 mm radial during installation
Mode: Premature bearing wear leading to shaft vibration exceeding 4.5 mm/s RMS
Strategy: Laser alignment verification protocol with 0.1° angular tolerance
Trigger Corrosive fluid ingress with chloride concentration > 50 ppm
Mode: Pitting corrosion initiating at sealing surfaces, progressing at 0.5 mm/year
Strategy: Duplex stainless steel (UNS S31803) construction with 22% chromium minimum

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Coupling Body.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 150 psi (10.3 bar)
flow rate: Dependent on port size and fluid viscosity
temperature: -40°C to 120°C
slurry concentration: Up to 30% solids by weight (particle size < 2mm)
Media Compatibility
✓ Potable water systems ✓ Hydraulic fluids (petroleum-based) ✓ Industrial gases (non-corrosive)
Unsuitable: Highly corrosive chemicals (e.g., concentrated acids, strong oxidizers)
Sizing Data Required
  • Pipe/port diameter and connection type (NPT, BSP, etc.)
  • Maximum operating pressure and temperature
  • Required material grade (e.g., stainless steel, aluminum, polymer)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Misalignment fatigue
Cause: Improper installation leading to angular, parallel, or axial misalignment, causing cyclic stress and premature material fatigue
Corrosion degradation
Cause: Exposure to moisture, chemicals, or corrosive environments without proper protective coatings or material selection
Maintenance Indicators
  • Excessive vibration or audible knocking during operation
  • Visible cracks, corrosion pitting, or material discoloration on coupling surfaces
Engineering Tips
  • Implement precision laser alignment during installation and periodic realignment checks to maintain tolerances within manufacturer specifications
  • Apply appropriate protective coatings (e.g., zinc plating, epoxy) and establish regular cleaning/inspection routines for corrosive environments

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ANSI/AGMA 9000-A94 - Flexible Couplings - Keyless Fits DIN 740-2 - Flexible Shaft Couplings - Requirements and Testing
Manufacturing Precision
  • Bore Diameter: +/-0.02mm
  • Parallelism of Flange Faces: 0.05mm
Quality Inspection
  • Dimensional Verification with CMM
  • Magnetic Particle Inspection for Surface Defects

Factories Producing Coupling Body

Verified manufacturers with capability to produce this product in China

✓ 94% Supplier Capability Match Found

T Technical Director from United Arab Emirates Jan 02, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
P Project Engineer from Australia Dec 30, 2025
★★★★☆
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Coupling Body meets all ISO standards. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Singapore Dec 27, 2025
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Coupling Body arrived with full certification."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

6 sourcing managers are analyzing this specification now. Last inquiry for Coupling Body from Mexico (1h ago).

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Frequently Asked Questions

What materials are available for coupling bodies in machinery manufacturing?

Our coupling bodies are manufactured from durable materials including cast iron for heavy-duty applications, steel alloy for enhanced strength, and aluminum alloy for lightweight corrosion resistance.

What components are included in a standard coupling body assembly?

A complete coupling body assembly typically includes the mounting flange for secure attachment, sealing surface for leak prevention, and bearing housing to support rotating components within machinery systems.

How does a coupling body protect internal components in industrial equipment?

The coupling body serves as the main structural housing that encloses and safeguards internal coupler components from environmental contaminants, mechanical damage, and operational stresses while providing stable mounting interfaces.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

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