In the field of hydraulic transmission, OMR orbital motors are renowned for their outstanding performance. However, not all cycloidal motors are equally exceptional. The true technological barriers often lie hidden within innovations in critical components—the bearing system and sealing technology. Breakthroughs in these core technologies directly determine the motor's superior performance in withstanding radial forces, preventing leakage, and extending overall service life.
1. Bearing Technology Shoulders Heavy Responsibilities
The output shaft of cycloidal motors frequently bears significant radial forces and impact loads. Under complex operating conditions, traditional simple support structures are prone to shaft lateral deflection, leading to friction with the housing, seal damage, and even complete system failure.
OMR Orbital Motor's bearing design addresses these challenges through advanced features:
Enhanced Radial Load Capacity:
Some advanced cycloidal motor designs (similar principles applied in OMR) employ dual bearing stages. For instance, the output shaft incorporates a primary bearing bracket and a secondary bearing bracket, often fitted with tapered roller bearings, to deliver enhanced radial support. This design effectively prevents shaft deflection under excessive radial forces, avoiding contact friction with the motor end cap bore surface. Consequently, it maintains optimal clearance with the seal, minimizing oil leakage risks.
Precise Clearance Control: The clearance between the output shaft and the housing bore is critical. Research indicates this clearance must be precisely controlled between 0.012–0.026mm. Insufficient clearance risks shaft adhesion and damage during rotation, while excessive clearance causes internal leakage and reduces volumetric efficiency. OMR ensures this critical dimension through precision manufacturing processes, guaranteeing efficient and stable motor operation.
Targeted Bearing Selection: OMR scientifically selects bearing types based on specific application requirements and load characteristics (drawing on industry expertise). For instance, designs requiring high radial and axial force capacity may adopt tapered roller bearings; whereas those primarily subjected to radial loads may utilize cylindrical roller bearings.
2. Reliable “Defense Line”: Sealing Technology Ensures Long-Lasting Seals
Leakage is the “arch-enemy” of hydraulic components. OMR Orbital Motor spares no effort in sealing technology to ensure long-term reliable operation under high pressure:
Special Dynamic Seal Design with High Back Pressure Tolerance: OMR Orbital Motor employs a unique dynamic seal ring design enabling it to withstand elevated back pressure. For optimal lifespan and overall performance, back pressure is typically recommended not to exceed 5MPa. Exceeding this value requires connecting an external drain line.
Multi-Layer Composite Sealing and Low-Pressure Oil Lubrication Technology: At critical static sealing points, OMR may employ a combination of multiple O-ring seals. For instance, multiple O-rings are fixed on the outer side of the connecting plate to enhance sealing effectiveness. An innovative sealing technology incorporates uniquely designed oil drainage channels. This channels low-pressure hydraulic oil into the annular grooves housing the sealing rings and the mounting grooves for fasteners. This ensures the sealing rings and fasteners remain continuously immersed in low-pressure oil. This effectively prevents direct impact from high-pressure hydraulic oil, significantly extending the service life of the sealing rings and fasteners while enhancing overall sealing performance.
Advanced shaft seal design: The OMR orbital motor employs an advanced shaft seal design with high back pressure tolerance, further ensuring reliable sealing at the rotating shaft.
3. Technological Innovation Enables Superior Performance
The synergistic advancement of bearing and sealing technologies ultimately translates into tangible benefits for users:
Extended Service Life: Reinforced bearing structures and efficient sealing protection significantly delay wear and leakage, substantially enhancing motor durability.
Higher Reliability: Motors maintain stable operation even under harsh conditions like load fluctuations and pressure shocks, with significantly reduced failure rates.
Superior Overall Performance: Precise clearance tolerances and effective sealing ensure high volumetric and mechanical efficiency, delivering robust output with lower energy consumption.
Wider Application Adaptability: Robust radial load capacity and outstanding sealing performance enable OMR Orbital Motors to confidently handle more demanding application scenarios.
4. Unseen Craftsmanship, Visible Excellence
OMR Orbital Motor's continuous innovation and technical expertise in “invisible” details like bearings and seals form the core competitive barrier of its products. Choosing OMR means embracing its relentless pursuit of reliability, durability, and high efficiency—infusing your equipment with quiet, powerful, and long-lasting performance.
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