Metso HP Head Upper Bushing 7015656200 | Leaded Bronze Part

Technical Specifications: Head Upper Bushing 7015656200

This precision-engineered head upper bushing is designed for Metso HP series cone crushers. Manufactured through a strictly controlled centrifugal casting process, this component provides the critical bearing surface required for high-speed eccentric rotation and heavy crushing loads.

Core Advantages: Why Metallurgy Matters

Our aftermarket crusher spares are engineered to exceed standard service life by focusing on grain refinement during the casting phase. Unlike static cast parts often found in the market, our centrifugal casting method eliminates internal blowholes and inclusions.

• Superior Lubrication Retention: The micro-structure of our high-leaded bronze ensures that lubricating oil is retained within the matrix, providing a safety buffer during cold starts or transient pressure spikes.
• Dimensional Stability: Each bushing undergoes stress relief processing to ensure that it maintains its perfect circularity even under the extreme thermal conditions of secondary and tertiary crushing.
• Exact OEM Interchangeability: This part is a direct replacement for 7015656200, ensuring a seamless fit with the original head and eccentric assemblies without additional on-site machining.

Performance Comparison: Newrg vs Standard Aftermarket

By implementing CNC precision machining and high-grade alloys, our wear parts offer measurable operational improvements:

• Service Life Extension: Average 15-20% increase in operational hours compared to generic sand-cast bushings.
• Friction Reduction: Optimized surface roughness (Ra 0.8 – 1.6) reduces heat generation by approximately 10%.
• Downtime Mitigation: Higher structural integrity reduces the risk of “seizing” which is a primary cause of unplanned crusher spares replacement.

Field Diagnosis and Maintenance Tips

As a leading crusher part suppliers, we recommend the following diagnostic checks to ensure the longevity of your Head Upper Bushing:

1. Clearance Monitoring: Regularly measure the clearance between the head bushing and the eccentric. If the gap exceeds 30% of the original factory specification, the hydrodynamic oil film may fail.
2. Wipe Pattern Analysis: During scheduled teardowns, inspect the bushing surface. A polished, uniform surface is ideal. “Dark spots” or “pitting” indicate localized overheating or contaminated lubrication.
3. Oil Filter Inspection: Check for bronze flakes in the oil filters. Fine bronze powder is normal during break-in, but larger flakes signal a potential failure of the C93200 alloy layer.

Workshops And Warehouses

Cross-Brand Compatible

Our spare parts are engineered to be fully interchangeable with OEM components across major brands, ensuring identical fit and function.

Frequently Asked Questions (FAQ)

Q1: What is the primary cause of premature failure in head upper bushings?
The most common cause is lubrication contamination. Fine dust bypassing the dust seal acts as an abrasive, quickly wearing down the leaded-bronze surface. Regular oil analysis is essential.

Q2: Can I use this 7015656200 bushing for all Metso HP series?
This specific part number is designed for certain HP configurations. Always verify your parts manual or contact us with your machine serial number to ensure exact compatibility.

Q3: How does your quality control process work?
Each batch of crusher spares undergoes ultrasonic testing for internal defects and coordinate measuring machine (CMM) inspection to verify every critical dimension against the original OEM drawings.

Expert Reminder: When installing the 7015656200 bushing, ensure the head bore is thoroughly cleaned and free of burrs. We recommend using a vertical press or dry ice for installation. Never use a sledgehammer directly on the bronze surface as it can deform the precision-machined inner diameter and lead to immediate overheating upon startup.

*All manufacturer names, part numbers and descriptions are used for reference only. They belong to their respective OEMs. NEWREG supplies aftermarket replacement parts – independently manufactured and warranted, not OEM-originated. No affiliation with OEMs is claimed or implied.