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Grease Passage Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

The Grease Passage is an internal conduit system integrated into the Cross Spider component, designed to deliver controlled amounts of lubricant from a central reservoir to specific bearing points. It ensures consistent lubrication under operational loads, reducing friction and wear between moving parts.

Working Principle

Operates on pressure differential and capillary action principles. Lubricant is forced through the passage via a centralized grease fitting, flowing through machined channels to reach designated lubrication points on bearing surfaces.

Materials

Typically manufactured from hardened alloy steel (AISI 4140 or equivalent) or stainless steel (AISI 304/316) for corrosion resistance. Surface finish: Ra ≤ 1.6 μm.

Technical Parameters

Length 50-200 mm (machine-dependent)
Diameter 3-8 mm (standard)
Flow Rate 0.5-2.0 ml/min
Pressure Rating Up to 100 bar
Temperature Range -20°C to 150°C

Standards

ISO 4400, DIN 3405

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Grease Passage.

Parent Products

This component is used in the following industrial products

Cross Spider

A central connecting component in a universal joint assembly that transmits torque between intersecting shafts.

View Product Details

Engineering Analysis

Risks & Mitigation

Lubricant contamination
Passage blockage from debris
Corrosion in humid environments
Insufficient lubrication leading to bearing failure

FMEA Triads

Trigger: Contaminant ingress during maintenance
Failure: Partial or complete blockage
Mitigation: Implement clean lubrication procedures and install protective caps

Trigger: Material fatigue from vibration
Failure: Crack formation and lubricant leakage
Mitigation: Use vibration-damping mounts and regular structural inspections

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.1 mm on diameter, ±0.5 mm on length

Test Method

Pressure decay test per ISO 4400, flow rate verification using calibrated measurement

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

How often should grease passages be inspected?

Inspect every 500 operating hours or during scheduled maintenance. Check for blockages using pressure testing.

Can different grease types be used in the same passage?

No. Always use manufacturer-specified grease to prevent chemical incompatibility and channel blockage.

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.

Grease Passage