Internal Bore/Lumen: Length Range 50-500 mm

Component Specifications

Definition

The internal bore or lumen is the precisely machined hollow interior passage of a probe tube, designed to allow the passage of measurement sensors, optical fibers, or other inspection tools while maintaining dimensional accuracy, surface finish, and alignment for reliable data acquisition in industrial environments.

Working Principle

Provides a protected, controlled pathway for measurement or inspection elements, minimizing external interference while ensuring precise positioning and alignment of internal components. The bore's geometry and surface characteristics directly influence measurement accuracy, signal integrity, and operational reliability.

Materials

Stainless steel (AISI 304/316), titanium alloys (Ti-6Al-4V), aluminum alloys (6061-T6), or specialized ceramics (Al2O3, ZrO2) depending on application requirements for corrosion resistance, thermal stability, and wear resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length Range	50-500 mm
Straightness	≤ 0.01 mm/100 mm
Concentricity	≤ 0.02 mm
Surface Roughness	Ra ≤ 0.4 μm
Diameter Tolerance	±0.005 mm

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 1101, ISO 2768, DIN 7167, ASME Y14.5

Parent Products

This component is used in the following industrial products

Probe Tube

A tubular component of a sampling probe that physically extends into the material or environment being sampled.

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Engineering Analysis

Risks & Mitigation

Dimensional deviation affecting measurement accuracy
Surface contamination or damage
Material fatigue from cyclic loading
Corrosion in harsh environments

FMEA Triads

Trigger: Improper machining tolerances
Failure: Measurement inaccuracies or sensor binding
Mitigation: Implement statistical process control and regular calibration

Trigger: Material corrosion or wear
Failure: Degraded surface finish and increased friction
Mitigation: Select appropriate corrosion-resistant materials and apply protective coatings

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 1101, dimensional tolerances per ISO 2768-fine

Test Method

Coordinate measuring machine verification, surface profilometry, optical comparator inspection

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

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Internal Bore/Lumen

Manufacturer profiles associated with Internal Bore/Lumen.

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Frequently Asked Questions

What factors determine the material selection for internal bores?

Material selection depends on application requirements: stainless steel for general corrosion resistance, titanium for high strength-to-weight ratio, aluminum for lightweight applications, and ceramics for extreme wear or thermal conditions.

How does bore surface finish affect measurement accuracy?

Surface finish directly impacts friction, wear, and signal transmission. Smoother surfaces (lower Ra values) reduce measurement noise, improve sensor movement, and extend component lifespan.

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.

Internal Bore/Lumen