3180603 XCMG GR2605 motor grader flange assembly

Technical Parameters

• Model：3180603
• Type：Integral Flange Assembly (includes flange disc, spline hub, seal shoulder)
• Material：42CrMo / 40Cr Alloy Steel (forged & quenched/tempered)
• Spline Specification：Involute spline (for heavy-duty transmission torque)
• Connection：Spline fit + bolt fastening (8-M12/M14 bolt holes)
• Surface Treatment：Blackening/phosphating for rust resistance; spline induction hardened (HRC 58-62)
• Operating Temperature：-40℃ ～ +150℃
• Rated Torque：≥5000N·m (heavy-duty)
• Features：High strength, anti-fatigue, impact-resistant, rigid connection, wear-resistant splines

Application Scenarios

• Transmits high-torque power from engine to wheels
• Withstands severe shocks and alternating loads during start, brake, and steering
• Adapts to harsh outdoor conditions: dust, mud, continuous vibration
• Matches mainstream axle/gearbox assemblies: DANA, ZF, Meritor, etc.

Common Faults & Troubleshooting

• Spline Wear/Tooth Breakage：Caused by long-term overload, poor lubrication, or misalignment. Replace 3180603 assembly, inspect mating spline shaft wear, correct alignment, and improve lubrication.
• Bolt Loosening/Breakage：Due to insufficient preload, vibration fatigue, or uneven load. Torque new bolts to spec (220-250N·m), use lock washers, and check flange flatness.
• Seal Leakage：From worn flange journal or damaged seal seat. Repair or replace flange, install new oil seal, ensure proper lip contact.
• Flange Disc Cracking：Material fatigue, severe impact, or installation stress. Replace 3180603 assembly immediately, inspect mounting brackets and bearings.