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Internal Bore/Lumen Component – Machinery and Equipment Manufacturing

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

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

Standards

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

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Internal Bore/Lumen.

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

Interchangeable Parts

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

Buyer Feedback

★★★★☆ 4.9 / 5.0 (23 reviews)

"The Internal Bore/Lumen we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 37+ suppliers for Internal Bore/Lumen on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Internal Bore/Lumen is very thorough, especially regarding technical reliability."

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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.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Internal Bore/Lumen