International Trade Fair for Construction Machinery,
Building Material Machines, Mining Machines and Construction Vehicles.

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bauma CHINA 2026
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JINING LONGRUI MACHINERY CO., LTD.

SNIEC W2.889

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Undercarriage Parts

Product Category: Track-laying chassis

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Product Introduction

This year we are showcasing five categories of Komatsu undercarriage components: bogies, track rollers, carrier rollers, cushion assemblies and final drive assemblies, for bulldozers and excavators. Bogies are the core load-bearing members of the undercarriage, carrying machine weight and travel loads. They suit D155A-3, D155A-5, D155AX-3, D155AX-5, D155AX-6, D475A, D475A-5A and D475A-5 bulldozers. Track rollers carry machine weight and guide the track chain, and are the highest-wear items on an undercarriage. A wide range of sizes is available. Carrier rollers support the upper run of the track and reduce sag and wear, fitting PC350HD, PC390, PC400, PC450, PC490, PC500 and PC550 excavators. Cushion assemblies handle track tension and absorb travel shocks, for PC300-8M0 machines. Final drive assemblies provide the final reduction and drive output for travel, covering PC1250-7, PC1250-8, PC1250LC-8 and PC1250SE-7 excavators. These components are widely used in mining and earthmoving applications. Please talk to us about fitment.

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Undercarriage Parts

Track-laying chassis

International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles

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