Editorial Technical Reference

Pivot Connection Assembly

This page explains how Pivot Connection Assembly is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A mechanical assembly that provides rotational connection between structural members, allowing controlled movement while maintaining structural integrity.

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Product Specifications

Technical details and manufacturing context for Pivot Connection Assembly

Definition
The Pivot Connection Assembly is a critical component within the Main Boom Structure that enables rotational movement between connected structural elements. It serves as the primary articulation point that allows the boom to pivot, fold, or articulate while maintaining load-bearing capacity and structural stability. This assembly typically consists of precision-machined components that work together to provide smooth rotation with minimal play. The assembly is designed for use in machinery and equipment manufacturing, where it is integrated into larger structures to facilitate controlled movement. It is manufactured from high-strength alloy steel, with a material grade of 45# per GB/T 699, and features a surface hardness of HRC 40–50 per ISO 6508. Key parameters include a rated load capacity of 50–200 kN, a rotation angle of 0–360°, an operating temperature range of -40–85°C, torque resistance of 10–50 N·m, radial clearance of 0.05–0.15 mm (ISO 2768), axial load capacity of 30–120 kN, and an IP rating of IP54–IP65 (IEC 60529). The weight ranges from 5–20 kg depending on size and material. These values are reference ranges and must be verified for the specific model and application. The assembly is designed to distribute rotational forces evenly across the connection interface, ensuring smooth operation and structural integrity. It is essential to confirm that the assembly meets the required standards and specifications for the intended use, and to consult the legal manufacturer or supplier for model-specific data. Proper installation, lubrication, and maintenance are critical to ensure long-term performance and to prevent premature wear or failure.
Working Principle
The assembly functions through a combination of bearing surfaces, fasteners, and lubrication systems that allow rotational movement around a central axis. Load is transferred through the pivot point while maintaining alignment and minimizing friction. The design ensures that rotational forces are distributed evenly across the connection interface. The bearing surfaces reduce friction, while fasteners secure the components, and lubrication systems minimize wear. The radial clearance is set to balance play and friction, and the torque resistance indicates the minimum torque needed to initiate rotation. The assembly operates within specified temperature and load limits to maintain seal integrity and prevent deformation.
Common Materials
High-strength alloy steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Load Capacity50–200 kNExceeding rated load may cause permanent deformation
Rotation Angle0–360 °Full rotation for continuous movement
Operating Temperature-40–85 °COutside range may affect seal integrity
Torque Resistance10–50 N·mMinimum torque to initiate rotation
Radial Clearance0.05–0.15 mmTighter clearance reduces play but may increase frictionISO 2768
Axial Load Capacity30–120 kNMaximum axial force without failure
Material Grade45#Carbon steel for structural applicationsGB/T 699
Surface HardnessHRC 40–50 HRCHigher hardness improves wear resistanceISO 6508
IP RatingIP54–IP65Protects against dust and water jetsIEC 60529
Weight5–20 kgDepends on size and material

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Pivot Pin Part
    Central rotating shaft that provides the axis of rotation
    Material: hardened alloy steel
  • Bearing Bushings Part
    Reduce friction between moving parts and maintain alignment
    Material: bronze or polymer composite
  • Retaining Plates Part
    Secure the assembly and prevent axial movement
    Material: steel plate
  • Fasteners Part
    Secure all components together under load
    Material: high-strength steel
  • Lubrication Systems
    Keep grease at the bearing surfaces so the joint stays free.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pivot Connection Assembly.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 300 psi (20.7 bar)
other spec: Max angular deflection: ±15°, Max torque: 500 Nm, Max axial load: 10 kN
temperature: -40°C to 120°C
Media Compatibility
✓ Structural steel members ✓ Hydraulic fluid systems ✓ Industrial water circuits
Unsuitable: Highly corrosive chemical environments (e.g., concentrated acids, chlorinated solvents)
Sizing Data Required
  • Required torque capacity (Nm)
  • Maximum angular deflection (degrees)
  • Connection interface dimensions (shaft diameter/flange size)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing seizure
Cause: Inadequate lubrication leading to metal-to-metal contact and overheating, often due to contamination, improper lubricant selection, or infrequent maintenance intervals.
Fatigue cracking at pivot pin holes
Cause: Cyclic loading exceeding material endurance limit, exacerbated by stress concentrations from poor machining, misalignment, or corrosion pits.
Maintenance Indicators
  • Abnormal grinding or squealing noises during articulation
  • Visible metal shavings or discoloration around pivot joints
Engineering Tips
  • Implement condition-based lubrication using grease analysis to detect contamination early and optimize intervals
  • Apply shot peening to pivot pin holes to induce compressive residual stresses, increasing fatigue resistance by 30-50%

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 898-1:2013 Mechanical properties of fasteners ANSI B18.2.1 Square and Hex Bolts and Screws DIN 931 Hexagon Head Bolts

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.025mm
  • Surface flatness: 0.05mm per 100mm
Quality Inspection
  • Magnetic Particle Inspection for surface cracks
  • Hardness testing to verify material properties

Manufacturers of Pivot Connection Assembly

Manufacturer profiles associated with Pivot Connection Assembly.

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Frequently Asked Questions

What is the rated load capacity of the Pivot Connection Assembly?

The rated load capacity is listed as 50–200 kN. This is a reference range; the exact capacity depends on the specific model and configuration. Always verify with the manufacturer or supplier for your application.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C. Operating outside this range may affect seal integrity. Confirm the limits for your specific model.

What material is used for the assembly?

The assembly is made from high-strength alloy steel, with a material grade of 45# per GB/T 699. The surface hardness is HRC 40–50 per ISO 6508. These specifications should be verified with the supplier.

What is the IP rating and what does it mean?

The IP rating is IP54–IP65 per IEC 60529, indicating protection against dust and water jets. The exact rating depends on the model. Check with the manufacturer for the specific protection level.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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