INDUSTRY COMPONENT

Arm Bracket

A structural support component in dancer arm assemblies that provides rigidity and mounting points for tension control systems.

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Component Specifications

Definition
The arm bracket is a critical structural component within dancer arm assemblies used in web handling and tension control systems. It serves as the primary mounting interface between the dancer arm and the machine frame, providing precise alignment and stability for tension rollers. This component must withstand dynamic loads, vibrations, and cyclical stresses while maintaining dimensional accuracy to ensure consistent web tension across various industrial processes.
Working Principle
The arm bracket functions as a rigid lever support that transfers forces from the dancer roller to the tension sensing mechanism. It operates on mechanical leverage principles, where displacement of the dancer arm creates proportional movement that is measured and controlled. The bracket's geometry determines the mechanical advantage and response characteristics of the tension control system.
Materials
Typically manufactured from high-strength steel alloys (AISI 4140, 4340) or aluminum alloys (6061-T6, 7075-T6) depending on load requirements. Surface treatments include zinc plating, powder coating, or anodizing for corrosion resistance.
Technical Parameters
  • Weight 2.5-15 kg
  • Hardness HRC 28-45 (steel), HB 80-150 (aluminum)
  • Dimensions Custom per application
  • Load Capacity 500-5000 N
  • Mounting Holes ISO metric thread (M8-M16)
  • Surface Finish Ra 3.2 μm or better
  • Flatness Tolerance 0.1 mm/100 mm
Standards
ISO 2768, DIN 7168, ISO 9001

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Arm Bracket.

arm bracket dancer arm bracket tension control bracket web handling component industrial bracket machine bracket structural support bracket Arm Bracket in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Dancer Arm Assembly

A mechanical assembly that supports and positions the dancer roll in fabric tension control systems.

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Engineering Analysis

Risks & Mitigation
  • Fatigue failure under cyclic loading
  • Corrosion in humid environments
  • Misalignment causing uneven wear
  • Vibration-induced loosening of fasteners
FMEA Triads
Trigger: Material fatigue from cyclic loading
Failure: Crack propagation leading to structural failure
Mitigation: Implement regular NDT inspections, use fatigue-resistant materials, design with appropriate safety factors
Trigger: Improper installation or alignment
Failure: Premature wear and inaccurate tension control
Mitigation: Use precision alignment tools during installation, implement standardized installation procedures, include alignment verification steps
Trigger: Corrosive environment exposure
Failure: Material degradation and loss of structural integrity
Mitigation: Apply appropriate protective coatings, select corrosion-resistant materials, implement environmental controls

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 1101, dimensional tolerances per ISO 2768-m
Test Method
Static load testing per ASTM E8, fatigue testing per ASTM E466, dimensional verification using CMM

Buyer Feedback

★★★★☆ 4.5 / 5.0 (10 reviews)

"The Arm Bracket we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 10+ suppliers for Arm Bracket on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Arm Bracket is very thorough, especially regarding technical reliability."

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Frequently Asked Questions

What is the primary function of an arm bracket in dancer arm assemblies?

The arm bracket provides structural support and precise mounting for tension control systems, ensuring accurate force transfer and alignment in web handling applications.

How do I select the right material for an arm bracket?

Material selection depends on load requirements, weight constraints, and environmental conditions. Steel alloys offer higher strength for heavy loads, while aluminum provides weight reduction for high-speed applications.

What maintenance is required for arm brackets?

Regular inspection for cracks, wear at mounting points, and corrosion. Lubrication of pivot points and periodic torque verification of fasteners are recommended maintenance procedures.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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