Komatsu PC20 Bulldozer Undercarriage Spare Parts High Duty Forged Steel Carrier Roller
What is Carrier Roller?
The carrier roller is a critical component of undercarriages, responsible for supporting both the conveyor belt and the weight of transported materials. Its quality directly impacts the service life of excavators and bulldozers.
For belt conveyors, the roller is equally indispensable. Available in diverse types and large quantities, it bears the load of the conveyor belt and materials while accounting for 35% of a belt conveyor's total cost and generating over 70% of the system's operational resistance, making its quality particularly vital.
Belt conveyor rollers primarily come in two material options: steel and plastic.
For carrier rollers used in heavy machinery undercarriages, material selection is tailored to working conditions, with common choices including 40Mn2, 40MnB, and 50Mn.
These rollers undergo a rigorous manufacturing process:
- First precision forging
- Followed by normalization
- Then overall heat treatment
This sequence achieves a surface hardness of HRC52-60 and a hardened layer depth of over 7-10mm (HRC45), ensuring exceptional durability, high impact resistance, and strong surface wear resistance on their contact surfaces.
Equipped with high-quality floating seals and a reliable lubricating system, track and carrier rollers adapt seamlessly to diverse climates and temperatures. They operate stably under severe working conditions or extreme temperatures ranging from -45℃ to 120℃, while keeping the components maintenance-free—further enhancing their reliability for heavy-duty applications like mining and construction.
Unrivaled Performance and Durability
Forged for the Toughest Conditions
Crafted with meticulous precision, carrier rollers use high-strength alloy steel and advanced hot-forging techniques—delivering unparalleled durability, longevity, and impact resilience. Engineered for robustness, they withstand extreme loads and harsh impacts, making them ideal for demanding construction and mining applications.
Precision Engineering for Optimal Functionality
Carrier rollers undergo a rigorous precision design process, with a focus on optimizing structure to ensure flawless track alignment. This innovative design drastically reduces friction and wear, extending the lifespan of undercarriage components by up to 40% compared to conventional standard models.
User-Friendly Maintenance
Beyond performance, carrier rollers are engineered with user-centric maintenance in mind. Features like tool-free access to key components and sealed lubrication systems eliminate complex disassembly steps, cutting maintenance time by 30%.
Factory Direct Advantages
OEM-Quality Assurance: Carrier not only meet but often exceed Hitachi's original specifications, guaranteeing seamless compatibility and optimal performance.
Significant Cost Savings: By eliminating distributor markups, we offer savings of up to 30% compared to traditional supply channels.
Swift Global Delivery: Orders dispatched within 25 days to locations worldwide.
Comprehensive Support: 24/7 technical assistance with a 12-month warranty.
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All manufacturers' names, symbols, and descriptions are utilized solely for reference purposes, and it is not to be inferred that any listed part is necessarily the product of these specific manufacturers.
Our Advantages
- World-class quality
- Factory sale directly with reasonable price
- Flexible payment terms including T/T, L/C and more
- Fast delivery within 30 days after contract established
- After-sale services: video technical support, 24h online support
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