Boom Cylinder Bushing 707-76-16030 for Komatsu PC1250-7 PC1250-8

Komatsu PC1250 Boom Cylinder Bushing 707-76-16030 707-46-16030 Optimize the joint stability, mechanical alignment, and structural longevity of your ultra-large mining equipment with this premium replacement boom cylinder bushing. Engineered specifically to manage the extreme torsional strain, continuous pivoting cycles, and immense hydraulic forces encountered by Komatsu 120-ton mining excavators, the 707-76-16030 bushing isolates the cylinder rod pins from direct housing wear, preventing expensive bore distortion during deep-pit overburden stripping and mass material handling. Machinery Applications and Compatibility This heavy-duty structural sleeve is precision-machined to match the high-load tolerances of Komatsu large-scale mining lines, ensuring a seamless field replacement during hydraulic group overhauls. Compatible Komatsu Excavator Models Zaxis PC1250 Series 7: PC1250-7, PC1250LC-7, PC1250SE-7, PC1250SP-7 Zaxis PC1250 Series 8: PC1250-8, PC1250LC-8, PC1250SP-8, PC1250-8R, PC1250SP-8R Next Generation Configurations: PC1250-11, PC1250LC-11 Mining Platforms Associated Engine Configurations Engine Compatibility: Engineered for frontend joints on machinery systems driven by Komatsu SAA6D170E-3, SAA6D170E-5, and SAA6D170E-7 multi-cylinder turbocharged diesel engines. Technical Data and Reference Codes To support global supply chains and streamline technical workshop verification during structural maintenance schedules, this cylinder pivot bush maps directly to major production indexes: Technical Specification Field Product Metric / Reference Mapping Primary OEM Component Number 707-76-16030 Interchangeable Production Codes 7077616030, 707-76-16031, 7077616031 System Specific Location Boom Cylinder Mounting Eye / Base & Rod End Pivot Groups Material Configuration High-carbon alloy steel with internal lubrication cross-grooves Surface Hardness Rating HRC 58-62 (Induction Case-Hardened) Packaging Framework Industrial neutral moisture-proof export packaging Related Front Linkage and Hydraulic Cylinder Spares Sustaining optimal joint tracking and preventing loose play along the boom assembly requires checking adjacent pin and seal groups during a standard maintenance rebuild: Pins and Linkage Bushings 21N-70-31181: Primary main boom foot connection framework bushing. 707-52-xxxxx Series: High-tensile induction-hardened linkage pins paired with the boom cylinder clevis. Dynamic Seals and Dust Guards 707-99-77010: Heavy-duty boom cylinder hydraulic seal packing overhaul kit. Polyurethane Dust Seals: External lip-wiper ring seals engineered to prevent aggregate grit ingress. Key Engineering and Technical Advantages Advanced Induction Case-Hardening: Thermally hardened to an optimal depth of HRC 58-62, providing a highly wear-resistant outer face while preserving a shock-absorbing inner core. Internal Grease Cross-Grooving: Micro-machined internal paths optimize lubrication retention, ensuring continuous grease coverage across the pin surface under high-pressure loading. Direct Drop-In Outer Alignment: Machined strictly to original factory specifications for outer and inner diameter limits, enabling seamless press-fit field installation without additional line-boring or custom resizing. Related Part Numbers NO P.N. 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