Name: Komatsu Bottom Roller 429 229 40 For PC3000
Brand: STONE
SKU: 276379660

Product Video

Products Description

Brand	Product Name	Model	Part Number
Komatsu	Bottom roller	PC3000	429 229 40

Product Name	Bottom roller
Part Number	429 229 40
Origin	Japan
Brand Name	STONE
Model	PC3000
Price	Negotiable
Packing Details	Standard Export Packing
Delivery Time	0-30 Days
Payment Term	L/C, T/T
Price Term	FOB, CIF, CFR
Supply Capacity	50,000 PCS/Month
Minimum Order Quantity	1 PC
Material	High Quality Steel
Technology	Precision Machining
Surface	Treatment Anti-Corrosion Coating
Quality	Original Factory Standard
After-Sales Service	Full Support, Online Service
Color	Customizable
Application	Excavator
Customizable	including customized materials, surface treatment and specifications

We supply all models of komatsu parts. If you need to know other models, please contact us.

Komatsu excavator PC3000

Specifications:

Horsepower (kW)：940 kW @ 1 800 rpm

Operating weight (kg)：250 - 261

Blade capacity (m³):15 - 16

Track

Number of bottom rollers each side:7

Number of top rollers each side:3

Number of track shoes each side:46

Track adjustment:Automatic hydraulic type

Product Structure

Perfectly matches the PC3000 host to achieve optimal performance.

High-strength materials:

Komatsu bottom rollers are constructed from high-quality alloy steel, capable of withstanding the enormous and transient loads generated during heavy-duty, high-speed, and complex terrain operations. Their robust structure withstands the impact of excavation, preventing deformation or failure under heavy loads.

Excellent wear resistance

As a critical component in direct contact with the ground and subject to constant friction, the PC3000 bottom roller's wear resistance is crucial. Advanced surface treatments, such as precision heat treatment or high-wear-resistant alloy surfacing, significantly enhance its resistance to hard particles like rock and soil, extending its service life.

Precision Manufacturing

Komatsu bottom rollers are manufactured to exacting tolerances. The connection holes for the track pins and the mounting interfaces for the roadwheel axles are precision-machined to ensure extremely tight dimensional and geometric tolerances. This effectively reduces noise and vibration during operation, and mitigates any wear caused by poor fit.

Excellent dynamic balance

Bottom rollers undergo rigorous dynamic balancing calibration before leaving the factory. This ensures smooth rotation without significant shaking or vibration, reduces vibration transmission throughout the machine, enhances driving comfort, and reduces impact wear on the roller itself and connected components.

Sealed design

To protect precision bearings, Komatsu bottom rollers utilize a reliable multi-layer sealing design. This effectively blocks the intrusion of mud, sand, and water while preventing internal grease leakage, ensuring the bearings operate in a clean, moist environment, significantly extending their lifespan and reliability and avoiding unexpected downtime.

Long-life bearings

This bottom roller is equipped with high-specification, high-performance bearings. Made from premium bearing steel and precision craftsmanship, the design is optimized for high-load conditions. It offers excellent fatigue and wear resistance, withstands heavy loads, and has a long replacement cycle.

Work scenario case

Adapt to a variety of harsh working conditions

Dry and hot open-pit mines

Working Conditions: Large-scale stripping operations involving excavation of a mixture of hard rock and loose mineral rock. These intense working conditions place extremely high demands on the wear resistance and load-bearing capacity of the equipment's travel system. Komatsu bottom rollers must withstand continuous heavy loads and repeated impacts.

Environmental Challenges: Track rollers face not only severe mechanical wear but also the variability of material properties in high-temperature environments. Dust can enter key areas like bearings, requiring effective sealing designs.

Wet, rainy, muddy mines

Working Conditions: Excavating heavy, wet soil, silt, or ore containing moisture. The terrain may be soft, requiring the excavator to haul and steer on slippery surfaces. The working conditions include increased slippage and lateral forces.

Environmental Challenges: Track rollers need to operate in a mixture of water, mud, and rocks, and are easily engulfed by mud, which affects heat dissipation and cleaning. Continuous heavy loads and slippery surfaces increase the overall load and torsional stress of the track system.

Severely cold and frozen soil operation area

Severely cold and frozen soil operation area: Working Conditions: When operating in cold winter regions, you may need to break frozen soil or excavate rock and soil covered with ice and snow. The ground may be frozen, resulting in increased operating resistance and placing higher requirements on the track's ground contact pressure and stability.

Environmental Challenges: Komatsu bottom rollers can become brittle at low temperatures, requiring the use of materials with excellent low-temperature toughness. Snow and ice-covered ground can exacerbate wear and tear and potentially cause the rollers to sink. The hardness and irregularities of frozen soil can also cause significant impact and wear on the rollers.

Comprehensive loading conditions

Working Conditions: The working surface features complex and variable geological conditions, potentially containing a variety of materials such as rock, soil, and ore. Excavators must frequently maneuver across terrain with varying slopes, gullies, and potholes, performing comprehensive operations such as loading and leveling. Working conditions include multiple motion modes, including forward, reverse, and steering.

Environmental Challenges: Track rollers must withstand load fluctuations and impacts in complex terrain and under varying motion conditions, placing comprehensive demands on component strength, rigidity, and adaptability. Occasional rainfall can increase the slipperiness and muddiness of the ground, further testing the stability and maneuverability of the travel system.

Convenience and adaptability

Allow users to focus more on core tasks

Factory-grade precision

Our Komatsu bottom rollers strictly follow Komatsu original factory standards, with identical dimensions, interfaces and tolerances. They can be installed perfectly without modification, ensuring a perfect match with the equipment system and the intended performance.

Performance synergy

This track wheel is designed to optimize the entire traveling system and can work in optimal coordination with components such as the drive wheel and guide wheel to maintain smooth operation, reduce friction and impact, and enhance the overall stability of the equipment.

Easy installation

The product design fully considers the convenience of installation, with a reasonable structure, clear installation holes, and a quick and efficient replacement process, which can significantly reduce maintenance time and downtime losses and simplify the operating process.

Reduced maintenance

Our Komatsu bottom rollers are made of high-quality materials and advanced technology to ensure excellent wear resistance and long-term reliability, extend service life, reduce failure probability and maintenance frequency, and reduce the additional maintenance burden on users.

STONE

Stone is a leading supplier of engineering machinery parts, focusing on providing high-quality parts for mining companies. Since its establishment in 2004, we have been based in Shanghai, China, and have built our own brand STONE, becoming a trusted choice in the industry. We are committed to providing a variety of parts including bulldozers, excavators and wheel loaders for well-known brands such as Caterpillar and Komatsu. Our product line covers a full range of OEM parts, such as Track Chain, Track Rollers, Sprocket, Excavator Buckets, Blades, Excavator Cylinders, Swing Circles, and various electrical and hydraulic components to ensure that our customers' stringent requirements for quality and performance are met.

Top

quality

20+

years experience

Customizd

service

2000+

hours warrant

FAQ

01.How to determine whether the Komatsu bottom roller needs to be replaced?

A: If the track rollers are severely worn, such as if the wear depth on the wheel surface exceeds the specified range, or if there are obvious deformations or cracks, they should be replaced. Additionally, if the track rollers are not turning smoothly, are stuck, or are stuck, causing abnormal shaking and increased resistance when the excavator is moving, or if unusual noises are heard from the track rollers during operation, these indicate that the track rollers may be damaged and need to be replaced promptly to avoid affecting the normal operation of the entire machine and the life of other chassis components.

02.Is the installation and removal of Komatsu PC3000 rollers complicated? What are the precautions?

A: The installation and removal of Komatsu PC3000 track rollers are somewhat complex and require professional tools and skills. When disassembling, first ensure that the excavator is in a safe parking state, and the working device is grounded and locked. Use appropriate tools, such as a hydraulic jack, to properly jack up the track on the side of the track roller that needs to be replaced so that the track roller is free from the pressure of the chain track. Be careful to use reliable supports during the track jacking process to prevent the track from suddenly falling and causing danger. When removing the fixing bolts of the track rollers, you may encounter situations where the bolts are rusted or overtightened. You can use rust removers or force tools as appropriate, but avoid excessive force to damage the bolts or other components. When installing new track rollers, ensure that the installation position of the track rollers is accurate and the fixing bolts are tightened according to the specified torque. After the installation is completed, check whether the track rollers can rotate flexibly and whether the track tension is appropriate.

03.What are the common causes of oil leakage from Komatsu PC3000 rollers?

A: Common causes of Komatsu PC3000 roller oil leakage include:

Aging or damage of seals: The sealing ring inside the track wheel is subjected to long-term friction, pressure and erosion of harsh working conditions, and is prone to hardening, cracking or deformation, resulting in seal failure.
Wear of wheel body or journal: If a gap appears on the mating surface of the track wheel body and the journal due to excessive wear, the sealing performance of the sealing structure will be destroyed and oil leakage will occur.
Loose bolts: If the fixing bolts of the track wheel are loose, a gap may appear between the wheel body and the mounting seat, causing lubricating oil to leak from the gap.
External impact damage: If the track roller is hit violently by hard objects such as stones during operation, it may cause the wheel body to deform or the seal to be damaged, which may cause oil leakage.

04.What factors are related to the wear rate of the Komatsu PC3000 track rollers?

A: The wear rate of the track roller is mainly related to the following factors:

Working ground conditions: When working on hard and rough ground such as sand, gravel, and crushed stone, the friction between the supporting wheels and the ground and chain rails will intensify, and the wear rate will be significantly accelerated; while when working on softer ground such as mud, the wear is relatively slow.
Track tension: If the track is too tight, it will increase the load and friction resistance of the track rollers and accelerate wear; if it is too loose, it may cause abnormal friction between the track rollers and the track, which will also aggravate wear.
Maintenance status: Lack of regular cleaning leads to the entry of debris, insufficient lubrication or deterioration of lubricating oil, which will accelerate the wear of the internal components of the supporting wheel and thus affect the overall service life.
Operation intensity and frequency: Long-term high-intensity and high-frequency operation will cause the track rollers to be continuously under high load, and the wear rate will naturally be higher than that of low-intensity operation.

Hot Tags: komatsu bottom roller 429 229 40 for pc3000, China komatsu bottom roller 429 229 40 for pc3000 manufacturers, suppliers, factory, bottom roller excavator, Double Flange Track Roller, flanged track rollers, Komatsu Track Roller, Track Roller, track roller double flange