Double Flange D65-8 Bulldozer Bottom Roller Applicable to Komatsu
Durable double flange Komatsu D65-8 bulldozer bottom roller. Manufactured with forged steel and advanced heat treatment, this undercarriage component ensures long-lasting support and wear resistance in demanding construction and earthmoving projects.
| Material | 50Mn/40MnB |
|---|---|
| Surface Hardness | HRC53-58,deepth: 8-12mm |
| Colors | Black or yellow or customized |
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Kinton Parts is trusted by professionals worldwide for delivering high-quality parts for excavators, bulldozers, and other construction machinery—with guaranteed performance and durability.
What Is the Function of the D65-8 Track Roller?
The D65-8 track roller is a double flange undercarriage component that plays a critical role in distributing the weight of the bulldozer and guiding the track along its correct path. It ensures:
- Stable contact between the track and ground
- Smooth movement with reduced vibration
- Protection of the undercarriage system by minimizing track misalignment
- Enhanced traction and operator comfort in rugged terrain
Its double flange structure provides added lateral stability, especially valuable in side-sloping, muddy, or uneven work environments.
Premium Materials & Heat Treatment for Maximum Wear Resistance
Key Components and Their Properties
The D65-8 track roller is built using high-grade materials tailored for high impact and abrasive environments:
- Roller body: Forged from 45# steel with high-frequency surface hardening, achieving a hardness of HRC52–58, which resists deformation and long-term wear.
- Bushing: Made from 40Cr or 42CrMo alloy steel, known for superior rotational durability and anti-friction performance.
- Shaft & End Cover: Heat-treated carbon steel, precisely machined to ensure tight tolerances and stable operation.
These material selections ensure reliable function over thousands of working hours under heavy loads.
Manufacturing Process of Komatsu D65-8 Track Rollers
The D65-8 roller goes through a comprehensive workflow that includes forging, CNC machining, robotic welding, heat treatment, and precision assembly. All units are sealed with high-temperature grease and oil seals to ensure long-lasting lubrication and resistance to contaminants. The final product meets OEM-grade precision and durability standards.
Heat Treatment
Machining Process
CNC turning and milling ensure dimensional accuracy
Assembly
Running Test
Simulated load test to verify functionality
Paint Spraying
Anti-rust coating for surface protection
Packing
OEM Undercarriage Parts for Komatsu Bulldozer
| BRAND | MACHINERY MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|---|
| KOMATSU | D20 | D21 | D31 | D37 | D39 | D41 | D50 | D53 |
| D55 | D57 | D60 | D61 | D65 | D68 | D75 | D80 | |
| D85 | D85A-12 | D87 | D90 | D95 | D135 | D155 | D155A-1 | |
| D155A-2 | D155A-3 | D155A-5 | D155AX-6 | D155AX-7 | D275 | D275A-2 | D275AX-5 | |
| D275AX-5EO | D355 | D355A-3 | D375A-2 | D375A-3 | D375A-5 | D375A-6 | D375A-8 | |
| D475A-2 | D475A-3 | D475A-5 | D475A-8 | D475A-8EO | D575A | D575A-2 | D575A-3 | |
| D65EX-12 | D65PX-12 | D61EX-15 | D61PX-15 | D61EX-24 | D61PX-24 | D37EX-21 | D37PX-21 | |
| D39EX-21 | D39PX-21 | D39EX-24 | D39PX-24 | D51EX-22 | D51PX-22 | D51EX-24 | D51PX-24 | |
| D85EX-15E0 | D85PX-15E0 | D85EX-18 | D85PX-18 | D155AX-8 | D155AXi-8 | D375A-8EO | D475A-8EO | |
Looking for a specific make or model not listed here? Reach out and we’ll be happy to assist.
Quality Control Standards for D65-8 Undercarriage Rollers
To meet the reliability expectations of Komatsu machinery users, each D65-8 track roller undergoes rigorous inspection steps:
- Hardness and wear depth testing
- Dimensional and concentricity checks
- Seal and lubrication pressure tests
- Spin and load-bearing performance simulations
Only rollers passing all metrics are approved for shipment, ensuring every piece delivers optimal field performance.
Compatibility with Komatsu D65-8 Bulldozer and Related Series
Our double flange track rollers are designed specifically for Komatsu D65-8 bulldozers and are also compatible with:
D65A-8 / D65EX-8 / D65PX-8
Other D65 variants with double flange roller configurations
If you're unsure about compatibility, feel free to send your machine’s serial number and we will confirm the fitment.
OEM Part Number Cross Reference
To help you match parts quickly, this track roller corresponds to the following OEM numbers:
14X-30-00350 / 14X-30-00340 / 14X-30-00331
For additional cross-reference or custom production based on original samples, OEM service is available.
Application Scenarios – D65-8 Bulldozer Rollers in the Field
Visual Proof from Real Projects
We have tested and delivered D65-8 rollers for use in:
Road infrastructure projects
Urban land leveling sites
Agricultural reclamation zones
Field images confirm their stability and long service cycle even under extreme ground conditions.
Why Choose Our D65-8 Bulldozer Rollers?
Choosing our D65-8 rollers gives you multiple competitive advantages:
- Forged steel construction + CNC precision
- OEM-grade design with consistent quality control
- Available for wholesale or customized branding
- Factory-direct pricing and global logistics support
Our rollers are trusted by contractors, dealers, and repair centers worldwide.
SHIPPING & DELIVERY
At Kinton Parts, we ensure reliable, worldwide shipping of parts for excavators, bulldozers, and a full range of construction machines—safe, fast, and secure.
All products are securely packed using high-quality export cartons, reinforced wooden cases, or industry-standard palletized packaging to ensure maximum protection during transit and smooth handling during unloading.
Standard orders are typically shipped within 3–5 working days, while large or customized orders are usually dispatched within 7–20 days, depending on volume and production requirements.
We offer flexible global shipping options, including:
- International sea freight for cost-effective bulk transport
- Air freight for urgent orders
- Courier delivery (DHL, FedEx, UPS) for small-volume or sample shipments
Our logistics team manages every shipment carefully, providing real-time updates and tracking information until your order arrives safely at your destination.
Need assistance choosing the best shipping method for your location and timeline? Contact our team — we’ll help you plan a smooth delivery experience.
FAQ
Q: What are your main products?
A: We supply a full range of undercarriage and wear parts for excavators, bulldozers, and other heavy equipment. Our product line includes: Track rollers, carrier rollers, front idlers, sprockets, segments, track shoes, track chains, bolt and nuts, pins and bushings, bucket teeth and adaptors, filters, seal kits, swing bearing, and hydraulic cylinder—plus other essential replacement parts.
Q: Which countries do you export to?
A: Kinton Parts exports to over 60 countries worldwide, including:
USA, Canada, UK, Germany, Russia, UAE, Indonesia, Malaysia, Thailand, India, Pakistan, Bangladesh, Sri Lanka, South Africa, Colombia, Peru, and many others.
Q: Can I order a sample?
A: Yes, we accept trial orders. For parts in stock, samples can be shipped quickly. If you have technical drawings or existing samples, we also support customized production and mold development.
Q: How can I track my order after shipping?
A: Once your order is shipped, we will provide you with all necessary tracking information based on the shipping method. For express deliveries, you’ll receive a tracking number to follow the shipment online. For air or sea freight, we’ll send you the relevant documents such as the airway bill (AWB) or bill of lading (B/L), along with the packing list and commercial invoice to help with tracking and customs clearance.
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Trusted by professionals worldwide, Kinton Parts supplies premium-quality components for excavators, bulldozers, and more—with reliable quality you can count on.
