Grease Passage: Temperature Range -20°C to 150°C

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 applied pressure: lubricant is forced through the passage by a grease gun acting on 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

Parameter	Typical range	Notes & selection driver
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

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 4400, DIN 3405

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.

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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

Typical Suppliers & Equivalents

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

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.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Grease Passage

Manufacturer profiles associated with Grease Passage.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

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.

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.

Grease Passage