Aftermarket E304 Track Roller – Cost-Effective Solution for Crawler
Excavator Maintenance 266-8793
1. Product Information
Material | 50Mn/40SiMnTi |
Finish | Smooth |
Colors | Black or yellow |
Technique | Forging casting |
Surface Hardness | HRC50-56,deepth:4mm-10mm |
Warranty time | 2000 hour |
Certification | ISO9001-9002 |
FOB Price | FOB Xiamen USD 20-250/Piece |
MOQ | $5000 |
Delivery Time | Within 30 days after contract established |
2. Design / Structure / Details Pics
Advantages / Features:
1. through quench-tempering processes to guarantee excellent
mechanical properties,high strength and superior wear resistence to
bending and breakage.
2. surface hardness HBN460 for reduced wear and longer life, adding
value to your products further to your business by maximizing
durability of your products.
266-87933. precise design, carefully manufactured for proper fix easy
grousering
heavy loaded capacity up to 50tons without compromising proper
functioning of the excavators
reliable quality, high cost performance,quality services.Our
products,your best choice.
How to evaluate the mass of an E304 track roller:
1. Material & Manufacturing Inspection
Steel Grade Verification
Check if the roller uses high-grade alloy steel (e.g., 40Mn2/50Mn)
through material certificates or spectrometer analysis.
Heat Treatment Marks
Look for uniform surface hardening (HRC 50-55 Rockwell hardness)
via hardness tester.
Casting Quality
Inspect for cracks/porosity using magnetic particle testing (MPI)
or dye penetrant.
2. Dimensional Precision
Tolerance Check
Measure critical dimensions (ID/OD, flange height) with calipers:
Inner Diameter: ±0.05mm
Flange Thickness: ±0.1mm
Runout Test
Use dial indicator to verify axial runout < 0.3mm.
3. Seal & Lubrication System
Lip Seal Integrity
Confirm triple-lip seal design with nitrile rubber (NBR) material.
Grease Retention
Disassemble sample unit to check grease cavity fill rate (>85%).
Anti-Clog Design
Verify labyrinth-style dust exclusion grooves.
4. Performance Testing
Load Capacity
Conduct dynamic load test (≥15,000 hours @ 20-ton excavator load).
Rotation Smoothness
Manual spin test should show >5 full rotations with minimal
friction.
Corrosion Resistance
Salt spray test (ASTM B117) should show no rust within 72 hours.
5. Certification & Brand Markers
OEM Compatibility
Check for compatibility stamps (e.g., CAT® 320D, Komatsu PC200).
ISO Certification
Require ISO 9001/TS16949 certification documentation.
Laser Marking
Authentic parts show permanent laser-etched "E304" ID code.
266-8793,E304 Track Roller,Crawler Excavator E304 Track
Roller,Excavator Track Roller E304,Crawler Excavator 266-8793
Whatsapp:+8615669210001
Wechat:+86 15669210001
Email:zhanghong@carrierrollers.com
https://www.carrierrollers.com
