Pivot Pins/Hinges: Load Capacity 5-50 kN

Component Specifications

Definition

Pivot pins and hinges are engineered mechanical connectors that facilitate rotational motion between two or more machine parts in hydraulic opening systems. They consist of precisely machined cylindrical pins that fit into corresponding bushings or bearings, allowing smooth articulation while maintaining structural integrity under hydraulic pressure and mechanical loads. These components are critical for converting linear hydraulic force into controlled rotational movement in applications like access doors, hatches, and articulated arms.

Working Principle

Pivot pins and hinges operate on the principle of rotational articulation around a fixed axis. When hydraulic pressure is applied to the opening system, it creates linear force that acts on connected components. The pivot pin serves as the fulcrum point, allowing these components to rotate smoothly while distributing mechanical stresses evenly. Hinges provide multiple pivot points in a coordinated assembly, enabling controlled angular movement with minimal friction and wear.

Materials

High-strength alloy steel (AISI 4140, 4340), stainless steel (316, 17-4PH), or hardened tool steel with surface treatments including chrome plating, nitriding, or DLC coating for wear resistance. Bushings typically use bronze alloys, self-lubricating polymers, or composite materials.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Load Capacity	5-50 kN
Surface Hardness	HRC 45-60
Diameter Tolerance	±0.01 mm
Corrosion Resistance	Salt spray test >500 hours
Operating Temperature	-40°C to 150°C

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

Standards

ISO 286-2, DIN 6325, ISO 2768-mK

Parent Products

This component is used in the following industrial products

Hydraulic Opening System

A hydraulic-powered mechanism that opens and closes the crusher housing for maintenance and clearing blockages.

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Engineering Analysis

Risks & Mitigation

Wear and tear leading to increased clearance
Corrosion in harsh environments
Misalignment causing binding or uneven wear
Fatigue failure under cyclic loading

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction and premature wear
Mitigation: Implement automated lubrication systems and regular maintenance schedules

Trigger: Material fatigue from cyclic loading
Failure: Crack propagation and catastrophic failure
Mitigation: Use fatigue-resistant materials and implement regular non-destructive testing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

ISO 286-2 medium tolerance for cylindrical components

Test Method

Dimensional verification per ISO 2768, load testing per ASTM E8, wear testing per ASTM G99

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

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Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Pivot Pins/Hinges

Manufacturer profiles associated with Pivot Pins/Hinges.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Related Components

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Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

What maintenance do pivot pins in hydraulic systems require?

Regular inspection for wear, lubrication of bearing surfaces, and checking for proper alignment. Replacement is recommended when wear exceeds 0.1mm or when surface damage is visible.

Can pivot pins be customized for specific hydraulic applications?

Yes, they can be manufactured with specific diameters, lengths, materials, and surface treatments to match exact load requirements, environmental conditions, and compatibility with hydraulic fluids.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Pivot Pins/Hinges