The Motor Orbital OMR 250 is widely used in construction machinery, agricultural machinery, and other fields. Operating long-term under complex conditions involving load impacts, dust, and impurities inevitably leads to damage issues. Among these, seal failure and bearing wear are two common types of faults. If not promptly and properly repaired, they can easily cause motor performance degradation, equipment downtime, and reduced operational efficiency. This article provides detailed troubleshooting steps for these two common failures, offering clear guidance for equipment maintenance and operation.
1. Seal Failure
Seals are critical components that prevent hydraulic oil leakage and block external contaminants from entering the Motor Orbital OMR 250. When oil seepage appears on the motor body surface, hydraulic system pressure becomes unstable, or abnormal noises occur during operation, seal failure is the most probable cause. Failure is often attributed to prolonged exposure to dust, aging and corrosion of hydraulic oil, or deformation caused by frequent directional changes and impact forces.
During maintenance, first disconnect the motor from the hydraulic system and release internal oil pressure to prevent oil splashing during disassembly. Then sequentially remove the end cover and output shaft assembly to extract aged or damaged seals. Clean residual oil and contaminants from the seal groove, ensuring the groove is free of scratches or deformation. When installing new compatible seals, apply a thin, even layer of hydraulic oil to the sealing surface to enhance sealing performance and facilitate smooth assembly. After reassembly, conduct a no-load test run to observe for leaks and verify that system pressure has returned to normal, confirming the repair's effectiveness.
2. Bearing Wear
If the motor exhibits noticeable vibration, abnormal noise, or a binding sensation during output shaft rotation, prioritize inspecting bearing wear. Wear typically results from prolonged insufficient lubrication, overloading causing damage to bearing balls or raceways, or contamination leading to abnormal friction.
The first step in repair involves disassembling the motor housing to remove the output shaft and bearing assembly. Use specialized tools during disassembly to avoid deformation of the shaft or housing caused by forceful hammering. Carefully inspect the bearing condition. If ball peeling, raceway wear, or corrosion is detected, replace the bearing with an identical model. Before replacement, thoroughly clean the bearing housing and shaft journal to remove residual oil and contaminants. When installing new bearings, employ a heating method (control temperature to prevent overheating damage) to expand the inner ring, facilitating precise fitting while ensuring the clearance between the bearing, shaft journal, and bearing housing meets specifications. After installation, manually rotate the output shaft to verify smooth rotation without binding. Apply specialized grease to ensure adequate lubrication for bearing operation. Finally, reassemble the housing to complete the repair.
For the maintenance of the Motor Orbital OMR 250, beyond standard operating procedures, high-quality parts and professional technical support are equally critical. Hanjiu, with deep expertise in cycloidal motors, provides OEM-compatible core components for the Motor Orbital OMR 250—including seals and bearings—ensuring precise compatibility with motor performance. Additionally, Hanjiu's professional technical team offers repair guidance to help quickly diagnose faults and standardize maintenance procedures. This minimizes equipment downtime, safeguards the continuous and stable operation of the Motor Orbital OMR 250, and ensures efficient equipment performance.
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