Double Flange Track Bottom Roller for Caterpillar D6 D7 Bulldozers in 50Mn Steel with HRC 40-55 Hardness

The YT brand double flange track bottom roller is specially engineered for Caterpillar D6 and D7 series bulldozers operating in heavy-duty earthmoving and dozing applications. Featuring a robust double flange design, this undercarriage component provides superior track alignment and lateral stability during high-load push operations. Manufactured from premium 50Mn forged steel at our ISO 9001:2008 certified facility in Quanzhou, each roller undergoes induction hardening to HRC 40-55 on the tread surface with 4-10 mm hardened depth. The sealed lifetime-lubricated bearing system ensures maintenance-free operation across the entire service interval. YT YinTai Parts delivers OEM-compatible quality at a competitive aftermarket price point.

• Double flange configuration delivers maximum track stability and prevents derailment during heavy push operations
• High-grade 50Mn forged steel construction provides exceptional impact resistance and structural integrity under heavy loads
• Induction hardened tread surface at HRC 40-55 with 4-10 mm case depth for superior wear resistance in abrasive soil conditions
• Sealed double-cone bearing assembly with lifetime grease lubrication eliminates the need for daily maintenance
• Engineered as a direct fit replacement for Caterpillar D6, D6R, D6T, D7, D7R, and D7E bulldozer models
• Precision CNC machined mounting surfaces ensure exact alignment with OEM track frames and roller brackets
• Shot-blasted and anti-corrosion coated finish protects against rust in humid, wet, and coastal working conditions

YT YinTai Parts operates a fully integrated manufacturing facility in Quanzhou, Fujian, China, spanning over 20,000 square meters. Our track bottom rollers undergo a rigorous production workflow: raw 50Mn steel inspection and cutting, precision forging or casting using 800-ton presses, CNC machining for exact dimensional accuracy to within ±0.02mm tolerance, heat treatment through induction hardening achieving HRC 40-55 surface hardness with 4-10mm hardened depth, precision grinding, shot blasting for surface finish, rigorous quality inspection including ultrasonic flaw detection and dimensional verification, anti-corrosion coating application, and final assembly with sealed lifetime-lubricated bearings. Each roller passes a 100% load testing protocol before shipment.

YinTai Parts (YT Brand) has served the global undercarriage parts market for over 35 years. Our factory in Quanzhou, Fujian Province, houses advanced CNC machining centers, automated forging lines, and in-house heat treatment facilities. We hold ISO 9001:2008 certification and CE marking, ensuring compliance with international quality and safety standards. Our engineering team of 50+ technical professionals continuously improves product designs using finite element analysis and fatigue testing. We export to over 60 countries across Asia, Europe, Africa, the Middle East, and the Americas, with an annual production capacity exceeding 120,000 track rollers. Our OEM and aftermarket replacement parts are trusted by construction companies, mining operations, and equipment dealers worldwide.

YT double flange track bottom rollers for Caterpillar D6 and D7 bulldozers are essential components in heavy earthmoving, mining overburden removal, land clearing, road construction, quarry operations, and landfill management. The double flange design provides the lateral stability required for bulldozer applications where the machine must maintain straight tracking under asymmetric loads. These rollers perform reliably in demanding conditions including rocky terrain, abrasive sandy soils, wet clay environments, and extreme temperature ranges from -30°C to +50°C. They are widely deployed by contractors in Africa, Southeast Asia, South America, and Australia where Caterpillar bulldozers are the primary earthmoving equipment.

Q1: Can YT double flange bottom rollers handle the heavy push loads of a Caterpillar D6 or D7 bulldozer?
A1: Yes, our YT-D6-D7-DF double flange bottom rollers are specifically designed for heavy-duty dozing applications. The double flange configuration provides exceptional lateral stability, while the 50Mn forged steel construction and HRC 40-55 heat treatment ensure durability under maximum push loads.

Q2: What is the difference between single flange and double flange bottom rollers?
A2: Single flange rollers have a flange on one side and are typically used on excavators for moderate lateral guidance. Double flange rollers have flanges on both sides, providing superior track stability for bulldozers and heavy equipment that experience high lateral forces during push operations.

Q3: Are these rollers compatible with all D6 and D7 variants including D6R and D7R?
A3: Yes, our YT-D6-D7-DF rollers are compatible with D6, D6R, D6T, D6N, D7, D7R, D7E, and D7G bulldozer models. We manufacture to the exact OEM dimensional specifications for each variant.

Q4: How does YT ensure quality consistency across production batches?
A4: Each production batch undergoes material composition analysis, dimensional inspection with calibrated gauges, ultrasonic flaw detection, surface hardness testing, and a random sampling load test. Our ISO 9001:2008 quality management system ensures traceability from raw material to finished product.

Q5: What is your typical lead time for a bulk order of D6 D7 bottom rollers?
A5: Standard production lead time is 7-30 days depending on order quantity. For urgent orders, we can expedite production to 7-15 days. Our monthly production capacity of 10,000 pieces allows us to handle large-volume requirements efficiently.

Q6: Do you provide installation instructions or technical documentation?
A6: Yes, we provide comprehensive technical documentation including dimensional drawings, installation guides, torque specifications, and maintenance recommendations for all our Caterpillar bulldozer undercarriage components.

All YT track bottom rollers are packaged in export-grade materials for maximum protection during transit. Standard packaging includes individual plastic wrapping, foam cushioning, and sturdy wooden pallets or plywood cases. Custom packaging options are available upon request including branded boxes and bulk packaging. Our products carry a warranty period of 12-18 months from the date of shipment, covering manufacturing defects and premature wear under normal operating conditions. Warranty claims are processed within 15 business days with photographic evidence and failure analysis. We provide full technical support and replacement parts for any warranty-covered issue.