Abnormal system pressure (either excessively high or low) can directly damage the internal structure of the Motor Orbital OMR 315, leading to performance degradation or even complete failure. The specific impacts can be analyzed under two scenarios: “excessively high pressure” and “excessively low pressure.”
1. Excessive System Pressure
When pressure exceeds the design tolerance range, it imposes excessive loads on internal motor components, triggering a cascade of damage.
Accelerated internal component wear: Excessive pressure subjects the meshing surfaces of the stator and rotor, as well as the sealing surfaces of the distribution mechanism, to excessive squeezing forces. This causes tooth surface scratches and distribution plate wear, thereby increasing internal leakage. This creates a vicious cycle: “higher pressure → heavier wear → greater internal leakage.”
① Housing deformation or cracking: The housing of the Motor Orbital OMR 315 is a pressure-bearing structure. Prolonged overpressure causes stress levels to exceed the material's strength limit, resulting in micro-cracks. In severe cases, the housing may rupture directly, triggering oil leakage incidents.
② Accelerated seal failure: Excessive pressure compresses seals such as oil seals and O-rings, accelerating their deformation and aging. This leads to oil leakage within a short period.
③ Exacerbated overheating: Under overpressure, increased fluid flow resistance within internal chambers intensifies friction-induced heat generation. Simultaneously, metal debris from component wear contaminates the oil, reducing heat dissipation efficiency. This causes the motor housing temperature to rapidly exceed 70°C, triggering oil oxidation and viscosity reduction, which further aggravates internal leakage.
2. System Pressure Too Low
Insufficient system pressure prevents the motor from delivering proper power output, indirectly causing equipment malfunctions and latent damage to the motor.
① Insufficient output torque to drive the load: The torque of the Motor Orbital OMR 315 is directly proportional to the inlet pressure. When pressure is too low, the pressure differential within the working chamber cannot effectively drive the rotor to rotate. This results in situations where the “motor fails to rotate” or “stalls when the load increases.” Prolonged operation under no-load or light-load conditions wastes energy and may accelerate shaft end wear due to insufficient lubrication.
② Poor operational stability causing impact and vibration: Insufficient system pressure prevents the oil in the return chamber from establishing stable “buffer pressure.” This leads to ‘jerking’ or “jerkiness” during rotor rotation, inducing output shaft vibration. Consequently, connected equipment experiences coupling loosening and bearing damage.
③ Air can easily enter the system: Excessively low return oil back pressure causes the pressure in the return oil line to approach atmospheric pressure. If the line has minor leaks, air will be drawn into the motor, mixing with the oil to form bubbles and compromising sealing performance.
Whether system pressure is excessively high or low, it ultimately disrupts the normal operational balance of the Motor Orbital OMR 315, shortening its average lifespan and increasing equipment maintenance costs. HAN JIU manufactures and sells premium Motor Orbital OMR 315 units, offering guaranteed quality, comprehensive after-sales service, and competitive pricing. We produce hydraulic pumps and components for global markets, earning strong reputation and positive feedback. For product inquiries, please contact us.
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