Engagement Pin or Cam: Load Capacity 500-5000 N

Component Specifications

Definition

An engagement pin or cam is a precision-engineered component within brake systems that converts rotational force into linear motion to activate or deactivate braking mechanisms. It typically features a tapered or eccentric profile that interacts with mating surfaces to create controlled engagement, ensuring reliable force transmission while minimizing wear and energy loss.

Working Principle

Operates on mechanical leverage and cam-follower principles where rotational input creates linear displacement, engaging brake pads or shoes against rotating surfaces. The cam's profile determines the mechanical advantage and engagement characteristics, with precise geometry ensuring consistent force application and release.

Materials

High-strength alloy steel (AISI 4140/4340), case-hardened to 55-60 HRC surface hardness with 30-35 HRC core hardness. Alternative materials include hardened stainless steel (17-4PH) for corrosive environments or powder metallurgy alloys for complex geometries.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	20-80 mm
Diameter	8-25 mm
Tolerance	±0.02 mm
Core Hardness	30-35 HRC
Load Capacity	500-5000 N
Surface Finish	Ra 0.8-1.6 μm
Surface Hardness	55-60 HRC
Operating Temperature	-40°C to 150°C

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 15488, DIN 6325, SAE J429, ISO 898-1

Parent Products

This component is used in the following industrial products

Brake Mechanism

A mechanical or friction-based device integrated into a furniture caster to lock the wheel in place and prevent unwanted movement.

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Engineering Analysis

Risks & Mitigation

Wear-induced clearance increase
Corrosion in harsh environments
Fatigue failure under cyclic loading
Improper installation causing binding
Material degradation at high temperatures

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction and wear, leading to binding or seizure
Mitigation: Regular maintenance with high-temperature brake grease, proper lubrication channels in design

Trigger: Material fatigue from cyclic loading
Failure: Crack initiation and propagation, eventual fracture
Mitigation: Proper material selection with adequate fatigue strength, surface treatments to reduce stress concentrations

Trigger: Corrosion in salt or moisture exposure
Failure: Surface pitting and increased friction, reduced dimensional accuracy
Mitigation: Corrosion-resistant materials or coatings, proper sealing in assembly

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.02 mm diameter, ±0.05 mm length, ±0.5° angular positioning

Test Method

Dimensional verification with CMM, hardness testing per ISO 6508, fatigue testing per ISO 12107, salt spray testing per ISO 9227

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 Engagement Pin or Cam

Manufacturer profiles associated with Engagement Pin or Cam.

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Frequently Asked Questions

What is the difference between an engagement pin and a cam in brake systems?

Engagement pins typically provide straight linear engagement, while cams use rotational motion with eccentric profiles to create mechanical advantage. Cams offer progressive engagement characteristics, while pins provide direct force transmission.

How often should brake engagement components be inspected?

During regular brake system maintenance (typically every 25,000-50,000 km or 2 years). Immediate inspection is required if abnormal noises, reduced braking efficiency, or uneven wear patterns are observed.

Can engagement pins be replaced individually or as sets?

Always replace as matched sets with mating components to ensure proper engagement geometry and wear patterns. Individual replacement can lead to uneven force distribution and premature failure.

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.

Engagement Pin or Cam