Product Video
Products Description
|
Brand |
Product Name |
Model |
Weight/pc |
Part Number |
|
Komatsu
|
Track Roller
|
D475A |
208Kg |
198-30-00421
|
|
Product Name |
Track Roller |
|
Part Number |
198-30-00421
|
|
Origin |
Japan
|
|
Brand Name |
STONE |
|
Model |
D475A |
|
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 |
|
Hardness |
HRC 48-52 |
|
Quality |
Original Factory Standard |
|
After-Sales Service |
Full Support, Online Service |
|
Color |
Customizable |
|
Application |
Bulldozer
|
|
Customizable |
including customized materials, surface treatment and specifications |
Product related information
 |
 |
 |
We supply all models of komatsu bulldozer track rollers. If you need to know other models, please contact us.
Komatsu Dozers-D475A-8
Surface mining dozers
Specifications:
Horsepower (kW)：664 kW @ 2 000 rpm
Operating weight (kg)：115 300
Blade capacity (m3):27.2 - 34.4
Track
Number of shoes (each side):41
Number of carrier rollers (each side):2
Shoe width (standard)(mm):710
Product structure design
Optimized wheel shape
The Komatsu bulldozer track roller adopts a streamlined wheel rim design with precision-ground edges to ensure a smoother contact surface with the track shoe. This optimization reduces friction resistance during rolling and reduces the wear rate of the track shoe.
Large diameter design
The large diameter structure of the track roller can effectively disperse the huge weight of the bulldozer, reduce the pressure on the ground, and prevent sinking in soft or rugged terrain. At the same time, the larger diameter also improves the rolling efficiency of the track roller and enhances the driving stability of the whole machine.
Balanced weight distribution
The layout of the track rollers is dynamically balanced to ensure that the weight of the entire machine is evenly distributed on the track system. This optimization avoids abnormal wear caused by local overload, makes the life of key components such as the track and sprocket more balanced, and reduces overall maintenance requirements.
High-strength axles
Komatsu bulldozer track roller uses high carbon chromium-molybdenum alloy steel forged axles, which have been quenched and tempered to have extremely high bending strength and fatigue resistance. Even under overload or impact conditions, the axles are not easy to deform or break, ensuring long-term reliable operation.
Performance optimization
Significantly improve work efficiency
Low rolling resistance
STONE's Komatsu bulldozer track roller adopts a precise bearing system and optimized wheel rim profile design, which significantly reduces the friction resistance during rolling.
By reducing energy loss, the bulldozer can save 5-8% of fuel consumption under the same operating conditions, which is particularly suitable for mining conditions that require long-term continuous operation.
Shock absorption effect
The Komatsu track roller adopts a multi-layer buffer structure design and is equipped with high-performance shock-absorbing materials, which can effectively absorb and disperse the impact force from the ground.
This design reduces the vibration transmitted to the machine body by more than 30%, which not only improves the comfort of the driver and reduces fatigue work, but also protects the precision electronic components and hydraulic system of the bulldozer and reduces the failure rate caused by vibration.
Anti-slip pattern design
The Komatsu bulldozer track roller we provide has a staggered anti-skid pattern design on the surface, which can provide the best track shoe bite effect.
This design effectively prevents the track from slipping and maintains excellent traction even when working on a 30-degree slope or in slippery muddy conditions.
Adaptability and compatibility
Some key parts are common with the old D475 series bulldozers.
STONE's Komatsu bulldozer track roller uses the original factory's precisely designed installation interface and size standards to ensure a perfect fit with the D475A bulldozer chassis system. Its installation holes, shaft diameters and fixing methods have been strictly calculated and tested, so that no additional modification or adjustment is required when replacing or installing, truly realizing the convenient operation of "disassembly and installation". This precise matching not only ensures installation efficiency, but also ensures the coordinated operation of the track roller and other parts of the whole machine, avoiding abnormal wear or performance degradation caused by dimensional deviation.
To meet the needs of different working environments and working conditions, Komatsu provides a variety of supporting rollers for D475A. Users can choose different materials (such as reinforced alloy steel), different sealing levels (such as special seals for deepwater operations) or different sizes of supporting rollers according to actual working conditions. This flexible configuration enables the equipment to better adapt to various working environments from soft mud to hard rock, ensuring the best performance and service life.
In addition to original accessories, our Komatsu bulldozer track roller is designed with full consideration of compatibility with mainstream third-party track brands. Its standardized interface design can perfectly adapt to the track systems of well-known brands such as Berco and ITR, providing users with more choices. This compatibility design not only reduces the user's procurement cost, but also provides more convenience for equipment maintenance around the world, especially when the original accessories are not available in time.
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.
quality
years experience
service
hours warrant
Q＆A
What is the service life of the D475A rollers? How often do they need to be replaced?
Under standard mining conditions, the original design life of the supporting roller is 8,000-10,000 hours. The actual replacement cycle depends on the operating environment:
Loose soil: about 10,000 hours
Rock mine: about 6,000-8,000 hours
It is recommended to check the wheel rim wear every 500 hours and replace it when the thickness decreases by 10% or cracks appear.
How harsh an environment can the sealing system of the track roller cope with?
Double seal design can adapt to:
Short-term immersion in water within 1 meter
Mud environment with high sand content
Mining sites with high dust concentrations However, it is necessary to avoid prolonged immersion in corrosive liquids. Regular cleaning of wheel hub mud can extend the seal life.
Is it necessary to use original manufacturer rollers? What about the compatibility of third-party brands?
Hot Tags: komatsu bulldozer track roller 198-30-00421 for d475a, China komatsu bulldozer track roller 198-30-00421 for d475a manufacturers, suppliers, factory, bottom roller excavator, bulldozer track rollers, Double Flange Roller, flanged track rollers, Single Flange Track Roller, track roller double flange