Undercarriage Parts/Pin and Bushing Links

Products & Range Coverage
A&S MACHINERY CO., LTD. delivers an extensive inventory of specialized pin and bushing link components within our undercarriage parts catalog to support diverse heavy-duty equipment. Our product lineup covers a broad range of machine series and track joint configurations, ensuring that every component meets rigorous Komatsu standards for undercarriage performance and preventive maintenance:
• Machine & Heavy-Duty Pin & Bushing System Compatibility: Engineered for a broad range of Komatsu heavy-duty excavators and bulldozers, our pin and bushing solutions ensure exact material strength ratings, dimensional tolerances, and structural interface definitions for a 100% perfect match, rapid replacement, and factory-grade performance.
• Complete Heavy-Duty Pin & Bushing Range: 1. Track Pins & Bushings: Designed with deep-hardened wear-resistant layers to withstand high-frequency alternating shear loads and harsh ground impacts; 2. Master Pins & Connecting Bushings: Crafted as high-strength connection joint units designed for rapid field disassembly and track closure; 3. Sealed & Lubricated Track Pins & Bushings: Engineered with high-pressure lubrication oil chambers and precision seals to completely eliminate internal dry friction.
• OEM & Heavy-Duty Aftermarket: We offer certified original equipment manufacturer Komatsu pin and bushing parts alongside rigorous high-performance aftermarket alternatives featuring reinforced wear-resistant alloy material formulas, delivering exceptional operational reliability and extended service lifespan at a cost-effective procurement point for global clients.

Supply Chain & Logistics
We maintain a robust operational infrastructure designed to support global pin and bushing component procurement through direct supply channels, delivering reliable stock availability and rapid dispatch to build trust with international equipment owners and repair facilities.
• Massive Inventory and Cross-Reference: We maintain large-volume stock of thousands of track pins, track bushings, and repair kits matching Komatsu mainstream excavators and bulldozers. Backed by barcode-enabled intelligent warehousing and Komatsu cross-reference databases, we guarantee precise matching and immediate dispatch upon order confirmation to fulfill routine maintenance and rapid replenishment needs for overseas fleet workshops and minimize equipment downtime caused by pin and bushing breakage or wear-through halting complete machine operations.
• Anti-Rust Coating and Sealed Tubing Protection: We implement specialized industrial packaging standards for the precision outer cylindrical surfaces, end faces, and internal oil passages of all track pins and bushings utilizing heavy-duty long-lasting anti-rust oils and thick-walled moisture-proof plastic sealing tubes for individual single-piece sealing, preventing mutual collision during transit to ensure zero metal oxidation during transcontinental ocean freight under salt spray and high humidity environments.
• Heavy-Duty Crated Protection: Bulk heavy-duty pin and bushing shipments are packed in high-strength export fumigated wooden crates with custom drilled wood slot trays that position and limit each pin and bushing independently, guaranteeing absolute safety during long-distance transcontinental transport under extreme cargo handling jolts without package splitting or deformation.
• Consolidated Sourcing for Undercarriage Overhaul Kits: We support overseas clients by consolidating large pin and bushing sets alongside matching full sets of track links, sprocket rims, track rollers, and track shoes into precise bundled undercarriage maintenance kits, achieving a one-stop purchasing model that pairs undercarriage service supplies while significantly reducing comprehensive logistics costs for overseas workshops.

Engineering Solutions & Technical Support
Our technical framework focuses on resolving field-level operational challenges to eliminate equipment downtime, moving beyond simple parts distribution to deliver comprehensive engineering and service capabilities for asset health monitoring reliability.
• Application-Specific Pin & Bushing Durability Solutions: We address extreme jobsite challenges—such as heavy blast hard rock and high-abrasion open-pit iron ore—where original bushings suffer premature wear-through or outer wall peeling under frequent sprocket friction. We also provide professional engineering upgrades utilizing high-purity alloy structural steel treated with deep carburizing quenching and special surface hardening, delivering exceptional surface hardness and tough cores for heavy-duty bushings.
• Troubleshooting and Maintenance Guidelines: We provide professional diagnostic guidance for issues like sharp metallic undercarriage noises, single-side track binding, or rapid chain elongation. This focuses on two critical protocols: 1. Wear & Seal Inspection: Technicians must regularly measure bushing outer diameter wear using calipers or ultrasonic thickness gauges (strictly prohibiting exceeding manufacturer limits) and inspect seals for extrusion and oil leaks to prevent oil-free dry burning from causing instantaneous pin and bushing seizure; 2. Bushing Turning Protocol: Service technicians must use professional track presses during mid-term overhauls to rotate track pins and bushings by 180°, utilizing unworn surfaces to continue load-bearing and significantly extend undercarriage service lifespan.
• Expert Technical Support & Safety Guidelines: We provide comprehensive documentation, including track pin press operation procedures, bushing press-in interference fit standards, grease injection specifications, and visual guides, assisting overseas technical personnel in executing standardized construction.

Call to Action & User Experience
Optimize your machinery articulation reliability and maintenance efficiency today by utilizing our interactive tools placed across strategic positions on our platform.
• Multi-Dimensional Intelligent Search and Specification Filtering: Benefit from advanced search functions supporting fast product filtering by Komatsu machine model (such as PC200, PC360, PC400, D65, D155, D275, or D375), product categories (such as track pins, track bushings, master pins, or undercarriage parts), or original equipment manufacturer part numbers to lock onto target products instantly.
• RFQ and Undercarriage Fleet Quotation: Access our fast-response interactive channels providing one-click bill of materials uploads for fleet Komatsu machinery undercarriage system overhaul lists, including pin and bushing assemblies, track chain assemblies, sprocket rims, and track roller sets, to receive bundled assembly quotations and international logistics freight estimates, fulfilling workshop routine overhauls and extreme condition spare parts reserve procurement requirements.
• Consultation and Support: Utilize our around-the-clock professional technical support channels staffed by senior Komatsu machinery undercarriage and track articulation experts to assist overseas clients in verifying non-standard pin and bushing diameter and length dimensions, designing customized bushing reinforcement plans for extreme mining environments, and troubleshooting complex undercarriage seizure faults, ensuring cross-border procurement runs error-free.