HITACHI EX300/ZX270/280/330 track roller(9168173;9066690;5601872)bottom roller ass'y/OEM manufacture,track rollers source factory china,excavator undercarriage rollers.
Product Specifications
Hitachi ZX270/EX300/ track rollers (also called bottom rollers) are critical load-bearing components in the excavator's undercarriage system. These OEM-compatible rollers are engineered to match the exact specifications of genuine Hitachi parts while offering enhanced durability features
KEY FEATURES
✔ Heavy-Duty Construction
Forged from 50Mn alloy steel (equivalent to JIS S50C)
Induction-hardened surface (HRC 58-62) + chrome plating
✔ Advanced Sealing System
Primary seal: NOK triple-lip rubber
Secondary protection: Labyrinth dust exclusion design
✔ Precision Engineering
Dynamic load capacity: 9,800kg
Dimensional tolerance: ±0.02mm
WHY CHOOSE OUR EX300 ROLLERS?
✓ Cost Savings - 40% less than OEM with comparable quality
✓ Quick Delivery - In stock at multiple global warehouses
✓ Technical Support - Free installation guidance available
✓ Custom Options - Available for special working conditionsORDERING INFORMATION
MOQ: 2 rollers (mixed models accepted)
Lead Time: 15 working days (standard orders)
Packaging: Export-grade wooden crates
Warranty: 12 months limited warranty
For precise matching:
① Provide machine serial number
② Share photos of old rollers
③ Specify working environment
Our company offers over 2,000 product varieties. Below is our product catalog for Hitachi excavator undercarriage parts.
Product Categories Included:
Track Rollers (Bottom/Top Rollers)
Standard Duty / Heavy Duty / Mining Spec
Idler Wheels (Front & Rear)
Adjustable / Fixed Types
Sprockets & Drive Components
Segmented / Solid Designs
Track Chains & Links
Sealed / Lubricated Types
Bolts & Hardware Kits
High-Tensile Grade 10.9
