Editorial Technical Reference

Locking Mechanism Interface

This page explains how Locking Mechanism Interface is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Interface component that connects and secures the locking mechanism to the master plate assembly.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Locking Mechanism Interface

Definition
The Locking Mechanism Interface is a specialized component within the master plate assembly, designed to provide secure mounting, alignment, and functional connection for locking mechanisms. It ensures proper engagement and disengagement of locking functions while maintaining structural integrity within the larger mechanical system. The interface typically includes precision-machined surfaces, fastener holes, and alignment guides that allow a locking mechanism to be securely attached to the master plate. It is available in carbon steel, stainless steel, or aluminum alloy, with material grades such as 45# or 40Cr for carbon steel and 304 for stainless steel, referencing standards like GB/T 699, GB/T 3077, and ASTM A276. Key parameters include an interface diameter of 50–200 mm, bolt circle diameter of 70–250 mm, 4–12 bolt holes (even number for balanced load), bolt hole diameter of 8–20 mm, flatness tolerance of 0.05–0.10 mm per ISO 1101, surface roughness of Ra 0.8–1.6 μm per ISO 1302, hardness of 28–32 HRC per ASTM E18, operating temperature range of -40 to 85 °C, static load capacity of 50–200 kN, and weight of 1.5–8.0 kg. These values are reference ranges and must be verified for the specific model and application. The interface is designed to match the master plate bore size and ensure even load distribution. It is critical to confirm model-specific values and standards with the legal manufacturer or supplier before procurement. The component plays a vital role in the reliability and safety of the locking system, and its proper selection and installation are essential for optimal performance.
Working Principle
The interface provides mechanical mounting points and alignment features that allow a locking mechanism to be securely attached to the master plate. Precision-machined surfaces ensure flatness and surface finish, while fastener holes and alignment guides position the locking mechanism correctly. When engaged, the interface transmits loads evenly to the master plate, maintaining alignment and preventing misalignment that could cause malfunction. The design ensures proper engagement and disengagement of locking functions, with tolerances and hardness specified to withstand operational stresses and wear.
Common Materials
Carbon Steel, Stainless Steel, Aluminum Alloy
Technical Parameters
ParameterTypical rangeNotes & selection driver
Interface Diameter50–200 mmMatches master plate bore size
Bolt Circle Diameter70–250 mmFor mounting bolts
Number of Bolt Holes4–12Even number for balanced load
Bolt Hole Diameter8–20 mmClearance for standard bolts
Flatness Tolerance0.05–0.10 mmEnsures even load distributionISO 1101
Surface RoughnessRa 0.8–1.6 μmSealing surface finishISO 1302
Hardness28–32 HRCWear resistanceASTM E18
Material Grade45# / 40Cr / 304Carbon steel or stainlessGB/T 699, GB/T 3077, ASTM A276
Operating Temperature-40–85 °CSeal material limits
Static Load Capacity50–200 kNBased on material and geometry
Weight1.5–8.0 kgDepends on size and material

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Mounting Flange Part
    Provides structural support and fastener attachment points for the locking mechanism
    Material: steel
  • Alignment Guide
    Ensures precise positioning and orientation of the locking mechanism during installation
    Material: steel
  • Load Distribution Plate Part
    Distributes mechanical loads from the locking mechanism across the master plate
    Material: steel

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
other spec: Vibration tolerance: 5-2000 Hz, 10 g max
temperature: -40°C to 150°C
Media Compatibility
✓ Hydraulic fluids (petroleum-based) ✓ Industrial lubricants (synthetic) ✓ Dry inert gases (nitrogen, argon)
Unsuitable: Highly corrosive acids (e.g., hydrochloric acid >10%)
Sizing Data Required
  • Master plate thickness (mm)
  • Locking force requirement (N)
  • Interface bolt pattern dimensions (mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Mechanical wear and deformation
Cause: Repeated engagement/disengagement cycles under load leading to surface degradation, material fatigue, or permanent deformation of locking components (e.g., pins, latches, or cams).
Corrosion and contamination
Cause: Exposure to environmental factors (moisture, chemicals, particulates) causing rust, pitting, or buildup that impedes proper interface alignment and locking force.
Maintenance Indicators
  • Audible grinding, clicking, or excessive noise during locking/unlocking operations
  • Visual misalignment, visible wear marks, or difficulty in achieving a secure, flush fit
Engineering Tips
  • Implement regular lubrication with compatible, high-adhesion lubricants to reduce friction and protect against corrosion, following manufacturer specifications.
  • Establish periodic inspection and cleaning routines to remove contaminants and verify alignment, using precision gauges or alignment tools as needed.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI/BHMA A156.2 - Bored and Preassembled Locks and Latches DIN 18252 - Door Locks and Latches

Quoted from the published standard.

Manufacturing Precision
  • Bore Diameter: +/-0.05mm
  • Surface Flatness: 0.08mm
Quality Inspection
  • Dye Penetrant Test for Surface Defects
  • Hardness Test (Rockwell C Scale)

Manufacturers of Locking Mechanism Interface

Manufacturer profiles associated with Locking Mechanism Interface.

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Frequently Asked Questions

What materials are available for the Locking Mechanism Interface?

The interface is available in carbon steel, stainless steel, and aluminum alloy. Material grades include 45# or 40Cr for carbon steel and 304 for stainless steel, referencing standards such as GB/T 699, GB/T 3077, and ASTM A276. Confirm the specific grade with the supplier for your application.

What are the key dimensional parameters?

Key parameters include interface diameter of 50–200 mm, bolt circle diameter of 70–250 mm, number of bolt holes (even number) from 4 to 12, and bolt hole diameter of 8–20 mm. These are reference ranges; verify exact values for your model.

What standards apply to this component?

Relevant standards include ISO 1101 for flatness tolerance, ISO 1302 for surface roughness, ASTM E18 for hardness testing, and material standards like GB/T 699, GB/T 3077, and ASTM A276. These are verification references, not proof of certification.

How should I verify the interface for my application?

Check the interface diameter matches the master plate bore, ensure bolt circle and hole sizes align with your fasteners, and confirm load capacity and operating temperature meet your requirements. Always consult the legal manufacturer or supplier for model-specific data.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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