INDUSTRY COMPONENT

Stylus shaft

Precision shaft connecting stylus tip to tactile probe body for coordinate measuring machines (CMM).

View Specifications

Component Specifications

Definition
A cylindrical or tapered precision component that serves as the structural connection between the stylus tip and the probe body in tactile coordinate measuring systems. It transmits mechanical contact signals from the measurement tip to the probe's sensing mechanism while maintaining dimensional stability, rigidity, and alignment accuracy under measurement forces.
Working Principle
The stylus shaft functions as a rigid mechanical link that transfers contact forces from the measurement tip to the probe's deflection sensing system. When the stylus tip contacts a workpiece surface, minimal deflection occurs through the shaft, which is detected by strain gauges or optical sensors in the probe head, converting physical contact into precise coordinate data.
Materials
High-strength stainless steel (AISI 440C, 17-4PH), tungsten carbide, ceramic (zirconia), or titanium alloys. Surface finish: Ra ≤ 0.2 μm. Hardness: 58-62 HRC for steel, ≥85 HRA for carbide.
Technical Parameters
  • Length 20-100 mm
  • Weight 2-50 g
  • Diameter 1.5-8 mm
  • Max Load 0.1-1 N
  • Thread Type M2, M3, M4, or proprietary quick-change
  • Straightness ≤2 μm/100 mm
Standards
ISO 10360, ISO 15530, DIN 32877

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Stylus shaft.

stylus shaft CMM probe shaft tactile probe component metrology shaft coordinate measuring machine parts precision measurement components Stylus shaft in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Tactile probe stylus

A precision contact sensor component used for dimensional measurement and surface profiling.

View Product Details

Measurement Probe (Stylus)

A precision contact sensor used on Coordinate Measuring Machines (CMMs) to physically touch and collect dimensional data from manufactured parts.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Shaft bending under excessive force
  • Thread wear causing mounting instability
  • Thermal expansion affecting accuracy
  • Material fatigue from cyclic loading
  • Contamination affecting surface contact
FMEA Triads
Trigger: Excessive measurement force or accidental impact
Failure: Permanent shaft bending or fracture
Mitigation: Implement force limits in CMM software, use protective covers, and train operators on proper probing techniques
Trigger: Thread wear from frequent mounting/dismounting
Failure: Loose connection causing measurement drift
Mitigation: Use torque-limiting tools, implement scheduled thread inspection, and consider quick-change systems with wear-resistant materials
Trigger: Thermal gradients in measurement environment
Failure: Dimensional changes affecting measurement accuracy
Mitigation: Use low thermal expansion materials (carbide, ceramic), implement temperature compensation, and maintain stable environment (±1°C)

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 1101: Straightness ≤0.002 mm, Circularity ≤0.001 mm, Position ≤0.005 mm
Test Method
Coordinate measuring machine verification per ISO 10360, roundness testing per ISO 12181, surface roughness per ISO 4287

Buyer Feedback

★★★★☆ 4.5 / 5.0 (32 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Stylus shaft meets all ISO standards."

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Stylus shaft arrived with full certification."

Related Components

Machine Frame
The rigid structural foundation of a CNC wood router that provides stability, vibration damping, and precision alignment for cutting operations.
pH Sensor Assembly
Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications
Load Cell Assembly
Precision load cell assembly for automated powder dispensing systems
Dust Collection Port
A dust collection port is a critical component in automated powder dispensing systems that captures airborne particulates at the source to maintain clean air quality and prevent cross-contamination.

Frequently Asked Questions

What is the primary function of a stylus shaft in tactile probing?

The stylus shaft transmits contact forces from the measurement tip to the probe's sensing system while maintaining precise alignment and minimal deflection to ensure accurate coordinate measurement data.

How do material choices affect stylus shaft performance?

Materials impact rigidity, weight, thermal stability, and wear resistance. Stainless steel offers good balance, tungsten carbide provides maximum stiffness, ceramics reduce weight, and titanium alloys offer strength with lighter weight for longer shafts.

What are critical tolerances for stylus shafts?

Straightness (≤2 μm/100 mm), diameter consistency (±5 μm), thread concentricity (≤10 μm TIR), and surface finish (Ra ≤0.2 μm) are critical for measurement accuracy and repeatability.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Stylus shaft

Stylus Stylus tip