INDUSTRY COMPONENT

Alignment Pins/Bushings

Precision alignment pins and bushings for accurate positioning and repeatability in mold carriers and fixtures.

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Component Specifications

Definition
Alignment pins and bushings are precision-engineered components used in mold carriers, fixtures, and tooling systems to ensure accurate positioning, alignment, and repeatability during assembly and operation. They consist of hardened pins that fit into corresponding bushings or sleeves, providing a secure and precise interface that prevents misalignment, reduces wear, and maintains dimensional stability in industrial applications.
Working Principle
Alignment pins and bushings work on the principle of interference fit and precise geometric mating. The pin, typically with a tapered or straight shank, engages with a corresponding bushing that has a matching internal diameter. This creates a rigid connection that aligns components accurately, distributes loads evenly, and prevents lateral movement or rotation, ensuring consistent positioning across multiple cycles.
Materials
Typically made from hardened tool steel (e.g., A2, D2, or H13), stainless steel (e.g., 440C or 17-4PH), or carbide for high-wear applications. Bushings may include bronze or polymer inserts for reduced friction. Surface treatments like nitriding, chrome plating, or TiN coating enhance wear resistance and corrosion protection.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Hardness58-62 HRC for steel components
Length Range10-200 mm
Load CapacityUp to 500 MPa depending on size and material
Surface Finish0.2-0.8 μm Ra
Diameter Tolerance±0.002 mm to ±0.01 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 2768, DIN 6325, ISO 286, DIN 7172

Parent Products

This component is used in the following industrial products

Mold Carriers/Fixtures

Precision components that securely hold and transport molds within automated conveyor systems during rubber and plastic manufacturing.

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Mold Assembly / Fixture

A specialized assembly or fixture used to hold and position molds during silicone molding processes.

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Internal Mounting Stage

A precision mounting platform inside the Integrated Calibration Chamber for securing and positioning calibration instruments or test specimens during calibration procedures.

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Engineering Analysis

Risks & Mitigation
  • Misalignment due to wear or damage
  • Gallling or seizing in high-load applications
  • Corrosion in humid or chemical environments
  • Fatigue failure under cyclic loading
FMEA Triads
Trigger: Wear from repeated insertion/removal cycles
Failure: Increased clearance leading to misalignment
Mitigation: Use hardened materials, apply wear-resistant coatings, and implement regular inspection and replacement schedules.
Trigger: Improper installation or over-torquing
Failure: Damage to pin or bushing, causing binding or breakage
Mitigation: Follow manufacturer installation guidelines, use torque-limiting tools, and train operators on proper handling.
Trigger: Contamination (e.g., dirt, chips) in the bushing
Failure: Scoring, reduced accuracy, or jamming
Mitigation: Implement cleaning protocols, use protective caps when not in use, and design with seals or covers where possible.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Typically within IT6 to IT7 grade per ISO 286 for precision fits
Test Method
Dimensional inspection using CMM (Coordinate Measuring Machine), hardness testing per ASTM E18, and wear testing per ASTM G99.

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 Alignment Pins/Bushings

Manufacturer profiles associated with Alignment Pins/Bushings.

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Frequently Asked Questions

What is the difference between alignment pins and bushings?

Alignment pins are the male components that insert into bushings, which are the female receptacles. Together, they form a mating pair that ensures precise alignment and positioning.

How do I select the right alignment pin and bushing for my application?

Consider factors like load capacity, required precision, material compatibility, environmental conditions (e.g., temperature, corrosion), and cycle life. Consult manufacturer specifications and industry standards like ISO or DIN.

Can alignment pins and bushings be used in high-temperature applications?

Yes, if made from heat-resistant materials like H13 tool steel or carbide, and with appropriate thermal expansion considerations in design.

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.

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