INDUSTRY COMPONENT

Pivot Arbor

A precision rotating shaft that enables controlled angular movement in actuator arms for industrial machinery.

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Component Specifications

Definition
The Pivot Arbor is a critical rotating shaft component within actuator arm assemblies, designed to provide a stable and precise axis of rotation. It facilitates controlled angular displacement through bearing surfaces, ensuring accurate positioning and smooth movement in mechanical systems. This component typically features machined journals, keyways, or splines for secure attachment and torque transmission.
Working Principle
The Pivot Arbor operates as a fixed or rotating axis that allows the actuator arm to pivot around it. It transfers rotational forces while maintaining alignment through precision bearings or bushings. The arbor's geometry and surface finish minimize friction and wear, enabling smooth angular motion with minimal backlash.
Materials
Typically manufactured from alloy steels (AISI 4140, 4340) or stainless steels (304, 316) for corrosion resistance. High-precision applications may use case-hardened steels or ceramic-coated surfaces. Material selection depends on load capacity, environmental conditions, and required surface hardness (typically 45-60 HRC).
Technical Parameters
  • Hardness 45-60 HRC
  • Tolerance ±0.01 mm
  • Maximum RPM 100-1000
  • Length Range 50-500 mm
  • Load Capacity 500-5000 N
  • Diameter Range 10-100 mm
  • Surface Finish Ra 0.4-1.6 μm
Standards
ISO 286, DIN 748, ISO 1101

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pivot Arbor.

pivot arbor actuator arm shaft rotating shaft mechanical pivot industrial arbor precision shaft machine component Pivot Arbor in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Actuator Arm

A mechanical lever component within an escapement mechanism that transfers energy from the power source to regulate the release of the escape wheel.

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Engineering Analysis

Risks & Mitigation
  • Wear and fatigue failure
  • Misalignment causing binding
  • Corrosion in harsh environments
  • Bearing surface degradation
  • Torque overload damage
FMEA Triads
Trigger: Insufficient lubrication
Failure: Increased friction and wear leading to seizing
Mitigation: Implement scheduled lubrication protocols and use appropriate lubricants
Trigger: Misalignment during installation
Failure: Premature bearing wear and vibration
Mitigation: Use precision alignment tools and follow installation procedures
Trigger: Material fatigue under cyclic loading
Failure: Crack propagation and catastrophic failure
Mitigation: Regular inspection and replacement based on load cycles

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 1101, dimensional tolerances per ISO 286
Test Method
Coordinate measuring machine (CMM) verification, surface roughness testing, hardness testing, dynamic load testing

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a Pivot Arbor?

The Pivot Arbor serves as the rotational axis for actuator arms, enabling controlled angular movement while maintaining structural integrity and precise alignment in mechanical systems.

How do I select the right Pivot Arbor material?

Material selection depends on load requirements, environmental conditions (corrosion, temperature), and wear resistance needs. Alloy steels offer strength, stainless steels provide corrosion resistance, and hardened surfaces enhance durability.

What maintenance does a Pivot Arbor require?

Regular lubrication of bearing surfaces, inspection for wear or scoring, and checking alignment and torque specifications. Replacement is typically needed when tolerances exceed ±0.05 mm or surface damage occurs.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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