3328363 XCMG GR2605 motor grader driven helical gear

Technical Parameters

• Model: 3328363
• Type: Driven Helical Gear (Cylindrical Helical Gear)
• Material: 20CrMnTi/20CrNiMo alloy forged steel, carburizing quenching + tempering
• Surface Treatment: Precision gear grinding, surface hardness HRC58-62, core hardness HRC30-40
• Accuracy Grade: GB/T 10095.1 Grade 6/7, meeting construction machinery transmission standards
• Helix Angle: 15°-25° (right/left hand, matched with driving gear)
• Module: Standard module series, heavy-duty design
• Load Characteristics: High bending strength and contact fatigue strength, impact resistant
• Operating Temperature: -40℃～120℃
• Structure: Integral/web type, with internal spline/shaft hole, used with matching driving helical gear

Application Scenarios

Common Faults & Troubleshooting

• Pitting/spalling: Caused by poor lubrication, overload, or high contact stress. Replace 3328363 gear and inspect lubrication system and mating gear.
• Tooth breakage: Caused by impact overload, misalignment, or fatigue fracture. Replace with new gear and check load, installation accuracy, and shaft stiffness.
• Scuffing/burning: Caused by lubrication failure or high oil temperature under high-speed heavy load. Replace gear and lubricating oil, check cooling and lubrication system.
• Abnormal wear: Caused by insufficient surface hardness, foreign matter, or improper assembly clearance. Replace gear, clean gearbox, and readjust meshing clearance.
• Abnormal noise/vibration: Caused by gear wear, poor meshing, or bearing failure. Inspect tooth surface, meshing clearance of 3328363 and mating gear, and support bearings.