INDUSTRY COMPONENT

Connection Point (for Pitman/Eccentric Rod)

A precision mechanical connection point that transfers motion between the pitman/eccentric rod and the ram/slide assembly in industrial machinery.

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Component Specifications

Definition
The Connection Point for Pitman/Eccentric Rod is a critical interface component in ram/slide assemblies, designed to convert rotary motion from the pitman or eccentric rod into linear motion of the ram. It features precisely machined bearing surfaces, alignment features, and fastening mechanisms to ensure minimal play and accurate force transmission under high cyclic loads. This component maintains the kinematic relationship between the driving mechanism and the driven ram, directly impacting machine precision, stroke consistency, and operational reliability.
Working Principle
The connection point operates on the principle of constrained kinematic linkage. It provides a pivot or sliding interface that allows the pitman/eccentric rod's oscillating or rotating motion to be transferred to the ram/slide with controlled degrees of freedom. The design ensures that motion transfer occurs with minimal backlash and deflection, maintaining the geometric relationship between input and output motions as defined by the machine's kinematics. Proper lubrication and wear management at this interface are essential for maintaining motion accuracy over the component's service life.
Materials
Typically manufactured from alloy steels (e.g., AISI 4140, 4340) or case-hardened steels for wear resistance. High-load applications may use forged components with surface treatments like nitriding, carburizing, or induction hardening. Bearing surfaces often incorporate bronze bushings or polymer composites for reduced friction. Corrosion-resistant coatings or stainless steel variants are used in specific environments.
Technical Parameters
  • Load Capacity 10-500 kN (depending on machine size)
  • Surface Finish Ra 0.8-1.6 μm (critical surfaces)
  • Connection Type Pinned, Bolted, or Keyed
  • Surface Hardness 45-60 HRC (bearing surfaces)
  • Dimensional Tolerance IT7-IT8
  • Operating Temperature -20°C to 150°C
  • Lubrication Requirement Grease or oil lubrication points
Standards
ISO 286-1, ISO 2768-1, DIN 7184, DIN 7190

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Connection Point (for Pitman/Eccentric Rod).

pitman rod connection eccentric rod connection point ram slide assembly component mechanical linkage interface industrial machinery parts motion transfer component Connection Point (for Pitman/Eccentric Rod) Connection Point (for Pitman/Eccentric Rod) in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Ram/Slide Assembly

The reciprocating component that delivers the stamping force through the tooling to the workpiece in a progressive stamping press.

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Engineering Analysis

Risks & Mitigation
  • Wear-induced backlash affecting precision
  • Fatigue failure under cyclic loading
  • Misalignment causing binding or uneven wear
  • Corrosion in humid or chemical environments
  • Improper lubrication leading to seizure
FMEA Triads
Trigger: Insufficient lubrication
Failure: Increased friction, overheating, and eventual seizure
Mitigation: Implement automated lubrication systems, use high-temperature greases, establish regular lubrication schedules
Trigger: Cyclic loading beyond design limits
Failure: Fatigue cracking at stress concentration points
Mitigation: Redesign with improved fillet radii, use higher fatigue-strength materials, implement load monitoring systems
Trigger: Environmental contamination
Failure: Abrasive wear and corrosion
Mitigation: Install protective seals, use corrosion-resistant materials, implement regular cleaning protocols

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances per ISO 286-1 for fits, geometric tolerances per ISO 1101 for alignment
Test Method
Dimensional verification with CMM, hardness testing per ISO 6508, non-destructive testing (ultrasonic or magnetic particle) for crack detection, functional testing under simulated load conditions

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.

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Frequently Asked Questions

What is the primary function of the connection point in a ram/slide assembly?

The connection point transfers motion from the pitman or eccentric rod to the ram, converting rotary/oscillating input into precise linear output motion while maintaining alignment and minimizing backlash.

How often should connection points be inspected and maintained?

Inspect during routine maintenance cycles (typically every 500-1000 operating hours). Check for wear, alignment, lubrication, and fastener tightness. Replace worn components immediately to prevent machine damage.

What are common failure modes of connection points?

Common failures include wear at bearing surfaces, fatigue cracking at stress concentrations, loosening of fasteners, corrosion in harsh environments, and misalignment due to improper installation or foundation issues.

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.

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