Description
Link Belt LS278, LS278H（F9A0001）bottom roller (also called Link Belt LS278, LS278H lower roller) is are critical undercarriage part of Link Belt crawler cranes. They bear the machine’s full operating weight, transfer loads to the ground, and withstand extreme soil and abrasive conditions.
Product Specifications
Target Models Link Belt LS278, LS278H
Material 42CrMo / 40Mn2 (Tonage-Adapted Selection)
Manufacturing Forging + Whole Quenching & Tempering
Surface Treatment High-Frequency Hardening (≥55 HRC)
Warranty 2,500 Hours / 1 Year (Whichever First)
Customization, Logo Engraving & Color Available
Why Choose Our Link Belt Bottom Roller?
✅ Precision Engineering
Material science-driven: Select 42CrMo for high-stress LS278H models or 40Mn2 for standard LS278 to maximize service life.
Triple-protection seals prevent mud and sand intrusion in harsh environments.
✅ Rigorous Quality Control
100% magnetic particle inspection after heat treatment.
Dimensional accuracy ≤ IT8 grade (ISO 286).
✅ Direct Replacement Guarantee
OEM-equivalent specifications, seamless integration with LS278 series undercarriages.
Interchangeable with original Link Belt part numbers.
✅ Rapid Deployment
In-stock components for LS278/LS278H – ship within 24h.
Global logistics support (DDP/DAP incoterms available).
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