INDUSTRY COMPONENT

Alignment Features

Precision alignment features on starwheel bodies for accurate positioning in rotary indexing systems.

View Specifications

Component Specifications

Definition
Alignment features on starwheel bodies are precisely machined surfaces, slots, or reference points designed to ensure accurate angular positioning, radial alignment, and axial location when the starwheel is mounted on a rotary indexing system. These features interface with mating components to maintain consistent orientation and prevent rotational drift during operation.
Working Principle
Alignment features work by providing physical reference surfaces that mate with corresponding features on the drive shaft or mounting hub. This creates a positive mechanical lock that prevents relative movement, ensuring the starwheel maintains its programmed angular position throughout indexing cycles. Common principles include keyway-slot engagement, pin-hole alignment, or flange-face registration.
Materials
Typically made from hardened alloy steel (AISI 4140, 4340), stainless steel (304, 316), or tool steel (D2, A2) with surface hardness of 45-60 HRC. Corrosion-resistant coatings or treatments may be applied.
Technical Parameters
  • Hardness 50-55 HRC
  • Feature Type Keyway, Pin Hole, Flange
  • Surface Finish Ra 0.8 μm or better
  • Mounting Diameter Custom to application
  • Alignment Tolerance ±0.01 mm
Standards
ISO 286-2, DIN 6885

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Alignment Features.

starwheel alignment rotary indexing alignment mechanical positioning features precision keyways industrial alignment components Alignment Features Alignment Features in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Starwheel Body

The main structural component of a container infeed starwheel that provides mounting points for starwheel arms and guides containers during transfer.

View Product Details

Mold Backplate / Support Structure

Structural component providing rigidity and mounting support for water-cooled copper mold assemblies

View Product Details

Ram / Punch Holder

A critical component in CNC press brakes that securely holds and positions the punch tool during metal bending operations.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Misalignment causing product defects
  • Wear leading to positional drift
  • Fatigue failure at stress concentration points
FMEA Triads
Trigger: Improper machining tolerances
Failure: Loose fit leading to rotational play
Mitigation: Implement statistical process control (SPC) during machining, use precision gauging, and specify tighter tolerance classes
Trigger: Material fatigue from cyclic loading
Failure: Crack propagation at keyway corners
Mitigation: Design with generous fillet radii, specify higher fatigue-strength materials, and implement regular inspection schedules

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
ISO 286-2 medium tolerance class for fits, DIN 6885 for keyway dimensions
Test Method
Coordinate measuring machine (CMM) verification, surface plate inspection with dial indicators, go/no-go gauge testing

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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 are the most common types of alignment features on starwheel bodies?

The most common types are keyways (standard or Woodruff), precision pin holes, and registered flange faces. Keyways provide positive rotational locking, pin holes offer radial alignment, and flange faces ensure axial positioning.

How do alignment features affect starwheel performance?

Proper alignment features prevent angular drift, reduce wear on mating components, maintain consistent indexing accuracy, and minimize vibration. Poor alignment leads to premature failure, product misalignment, and reduced machine efficiency.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

Request Manufacturing Insight for Alignment Features

Alignment Feature Alignment Guide