Holder Ring: Outer Diameter 50-500 mm, Width 10-100 mm

Component Specifications

Definition

The Holder Ring is a circular mechanical component designed to apply consistent radial clamping force within holder/flange assemblies. It functions as an interface element that maintains alignment, prevents axial movement, and distributes loads evenly across connected parts. Typically installed between mating surfaces, it ensures secure attachment while accommodating thermal expansion and vibration damping in industrial machinery.

Working Principle

Operates on the principle of radial compression, where tightening mechanisms (such as bolts or hydraulic pressure) cause the ring to contract uniformly, creating a 360-degree clamping force that secures internal components against the holder or flange. This eliminates point loading and maintains concentricity.

Materials

Commonly manufactured from alloy steels (e.g., AISI 4140, 4340), stainless steels (304, 316), or tool steels, with surface treatments like nitriding, chrome plating, or black oxide for corrosion resistance and wear protection.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	10-100 mm
Hardness	HRC 40-60
Tolerance	±0.05 mm
Outer Diameter	50-500 mm
Pressure Rating	Up to 300 MPa

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 7154

Parent Products

This component is used in the following industrial products

Holder/Flange Assembly

A mechanical assembly that secures and seals a rupture disc within a pressure system.

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Engineering Analysis

Risks & Mitigation

Improper installation leading to uneven clamping
Material fatigue under cyclic loading
Corrosion in harsh environments

FMEA Triads

Trigger: Over-torquing during installation
Failure: Crack propagation or permanent deformation
Mitigation: Use calibrated torque wrenches and follow manufacturer specifications.

Trigger: Exposure to corrosive chemicals
Failure: Reduced structural integrity and premature failure
Mitigation: Select corrosion-resistant materials and apply protective coatings.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

IT7 grade per ISO 286

Test Method

Dimensional inspection via CMM, pressure testing per ISO 16090

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

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

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

Supplier transparency

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Manufacturers of Holder Ring

Manufacturer profiles associated with Holder Ring.

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Related Components

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Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Seal Groove

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

Frequently Asked Questions

What is the primary function of a Holder Ring?

To provide uniform radial clamping force in holder/flange assemblies, ensuring secure attachment, alignment, and load distribution.

Can Holder Rings be customized for specific applications?

Yes, they are often custom-engineered in terms of dimensions, materials, and tolerances to match unique machinery requirements.

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.

Holder Ring