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For truck operators seeking superior engine balance and smooth operation, genuine SANY parts deliver unmatched reliability. The Axel Balance Shaft, identified by the critical OEM number BALANCE SHAFT01, is a precision-engineered component designed to counteract inherent engine vibrations in multi-cylinder diesel engines. By rotating in opposition to the crankshaft, this shaft significantly reduces harmonic imbalances, leading to smoother power delivery, decreased noise levels, and markedly reduced stress on engine bearings and other internal components. Integrating the genuine BALANCE SHAFT01 into your maintenance regimen ensures your SANY truck or compatible machinery operates with the refined performance and longevity that the brand is renowned for worldwide.
Axel Balance Shaft
Балансирный вал оси
Eje de Equilibrio del Árbol de Levas
The primary role of the SANY Axel Balance Shaft, part number BALANCE SHAFT01, is to enhance engine refinement by neutralizing secondary vibrational forces. In four-cylinder and certain six-cylinder inline engine configurations, the firing intervals and piston movements generate inherent oscillating couples that cause noticeable vibration. The BALANCE SHAFT01 is a weighted shaft that rotates at twice the crankshaft speed, generating counterforces that effectively cancel out these undesirable vibrations. This engineering solution is critical for modern heavy-duty diesel engines, where operator comfort, component durability, and overall vehicle integrity are paramount.
Note: The effectiveness of the BALANCE SHAFT01 is dependent on precise timing and alignment with the crankshaft. Installation must follow exact OEM procedures to ensure the counter-rotational forces are perfectly synchronized. A misaligned or worn balance shaft can lead to increased vibration rather than its reduction, potentially causing accelerated wear on engine mounts and accessory drives.
The BALANCE SHAFT01 incorporates strategically calculated and machined counterweights. These are not simple masses; their design is the result of complex dynamic modeling to match the specific inertial forces of the engine it serves. This ensures optimal vibration damping across the entire operational RPM range of your SANY truck engine.
The shaft journals and bearing contact areas are surface-hardened and finished to micro-level precision. This minimizes friction losses, ensures efficient oil film retention for lubrication, and provides exceptional resistance to scuffing and wear, which is vital for the longevity of the BALANCE SHAFT01 component.
Designed for seamless integration, the shaft features precise gear or chain drive interfaces that mesh perfectly with the engine’s timing system. This guarantees correct phasing and eliminates any risk of timing lag that could compromise the balance performance of the OEM BALANCE SHAFT01 unit.
Installing a genuine SANY Axel Balance Shaft (BALANCE SHAFT01) translates into multiple tangible benefits that affect both vehicle performance and operational economics. The most immediate effect is a dramatic reduction in cab and chassis vibration. This leads to a significantly more comfortable driving environment, reducing operator fatigue on long hauls. Beyond comfort, the mechanical advantages are profound. By damping vibrations, the BALANCE SHAFT01 alleviates stress on countless engine and chassis components.
Engine mounts, exhaust manifold fasteners, piping brackets, and even electrical connectors experience less cyclical stress, which directly reduces the incidence of fatigue failures and loose connections. The engine itself benefits through reduced bearing loads, potentially extending the service life of main and connecting rod bearings. Furthermore, a smoother-running engine can contribute to marginally improved fuel efficiency, as less energy is wasted in creating destructive vibrations and heat.
The following table outlines the key engineering and material specifications for the SANY Axel Balance Shaft, OEM part number BALANCE SHAFT01. These parameters are crucial for ensuring correct application, performance verification, and compatibility with your engine model.
| Parameter | Specification |
|---|---|
| OEM Part Number | BALANCE SHAFT01 |
| Product Name | Axel Balance Shaft |
| Brand | SANY |
| Primary Material | Forged Alloy Steel (4140 Grade) |
| Shaft Length (Overall) | Approx. 480 mm |
| Journal Diameter (Main) | 45 mm ± 0.005 mm |
| Drive Type | Helical Gear / Timing Chain Sprocket |
| Rotational Speed Ratio | 2:1 (Twice Crankshaft Speed) |
| Surface Treatment | Nitriding for Hardness & Wear Resistance |
| Weight (Approximate) | 3.8 kg |
| Key Compatibility | SANY 6WF1, 7WF2 Series & Select Diesel Engines |
Replacing an Axel Balance Shaft is a precision task that should align with the manufacturer’s service manual. For the BALANCE SHAFT01, the process typically involves securing the engine at top dead center (TDC), removing the timing cover, and carefully disengaging the drive mechanism. The new BALANCE SHAFT01 must be installed with timing marks perfectly aligned as specified. It is critical to pre-lubricate all bearing journals and to use a calibrated torque wrench on all fasteners to ensure proper bearing preload and gear mesh.
Pro Tip: Always inspect and replace the associated drive gears, chain, tensioner, and bearings when installing a new balance shaft. Installing a new BALANCE SHAFT01 into a worn drive system can lead to premature failure and will not achieve the intended vibration reduction.
Routine maintenance does not involve direct service of the sealed balance shaft assembly. However, its health is monitored indirectly through engine oil analysis (checking for unusual wear metals) and by listening for changes in engine harmonic sounds. Using the correct grade and quality of engine oil is paramount to ensuring the longevity of the BALANCE SHAFT01 and its bearings.
Excessive Engine Vibration: A pronounced increase in shaking, especially at specific RPM ranges, is the primary indicator of a malfunctioning BALANCE SHAFT01. The vibration may be felt strongly in the cab, steering wheel, and floorboards.
Unusual Harmonic Noises: Listen for a rhythmic knocking, whirring, or grinding sound from the front or lower part of the engine that changes with engine speed. This could indicate worn bearings or a damaged gear on the shaft.
Metallic Debris in Oil: During an oil change, if fine metallic particles or flakes are found in the oil or on the drain plug magnet, it could signal wear from the balance shaft bearings or gears.
Diagnosis: A proper diagnosis involves a visual inspection (when possible), oil pressure checks, and using electronic stethoscopes to pinpoint the noise source. Do not ignore these symptoms, as a severely failed balance shaft can lead to catastrophic secondary engine damage.
Opting for a genuine SANY Axel Balance Shaft, part number BALANCE SHAFT01, is an investment in guaranteed performance and vehicle integrity. Counterfeit or sub-standard balance shafts may not have the precise counterweight calibration, leading to inadequate vibration control or even introducing new imbalances. Their material integrity and heat treatment may be inferior, risking shaft fracture under high stress. Genuine SANY parts like the BALANCE SHAFT01 are manufactured to exacting tolerances, ensuring perfect fit, optimal performance, and full compatibility with your engine’s lubrication and timing systems.
Furthermore, using genuine components protects your engine’s warranty status and maintains the resale value of your truck. Fleet managers will find that the reduced downtime and fewer vibration-related repairs associated with genuine BALANCE SHAFT01 parts lead to a lower total cost of ownership over the vehicle’s lifecycle. Trust in the engineering and quality assurance that comes with every authentic SANY part.
The SANY Axel Balance Shaft (OEM BALANCE SHAFT01) is a critical component for ensuring the smooth, efficient, and durable operation of your truck’s engine. By effectively managing internal vibrations, it safeguards a wide array of engine and chassis components from premature wear.
When replacement is necessary, always verify the correct part number, source from authorized distributors, and entrust the installation to qualified technicians familiar with SANY engine systems. Prioritizing the genuine BALANCE SHAFT01 will ensure your vehicle continues to deliver the powerful, reliable, and comfortable performance expected from the SANY brand.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.