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481F-1006010
HongPro
481F-1006010
This 481F-1006010 is a premium engine crankshaft engineered for superior performance and durability. Manufactured from high-grade forged 42CrMo steel, it undergoes precise CNC machining to achieve micron-level tolerances, ensuring perfect balance and fit. The crankshaft is further strengthened by advanced induction hardening, providing a surface hardness of 55-60 HRC for exceptional wear resistance in high-stress environments.
Rigorous dynamic balancing tests reduce vibration to below 15 mm/s, which promotes smoother engine operation, reduces stress on adjacent components, and contributes to overall efficiency. Each unit is 100% pressure tested to guarantee structural integrity and leak-free performance. This crankshaft is the definitive choice for a reliable, long-lasting engine rebuild, meeting strict OEM specifications for a direct replacement.
Our 481F-1006010 crankshaft is forged from high-tensile 42CrMo alloy steel, a material renowned for its exceptional strength and fatigue resistance. This forging process creates a continuous grain flow, resulting in a component that can withstand extreme combustion pressures and rotational forces far better than cast alternatives. This translates directly to superior impact strength and a significantly longer service life, providing a reliable foundation for any engine rebuild and reducing the risk of catastrophic failure.
Every crankshaft is manufactured using state-of-the-art Computer Numerical Control (CNC) machinery. This ensures that all critical dimensions—including journal diameters, thrust widths, and flange run-out—are held to tolerances within ±0.02mm. Such meticulous precision guarantees a perfect OEM-spec fitment, eliminating the need for modifications and ensuring optimal oil clearance right from installation. This level of accuracy is crucial for maintaining proper engine geometry and achieving peak performance.
To combat the constant friction and stress on the journal surfaces, we employ a controlled induction hardening process. This heat treatment technique creates a deep, uniform hardened layer with a surface hardness of 55-60 HRC, while retaining a tough, shock-absorbing core. This dual-property structure offers exceptional resistance to abrasion and scoring, significantly extending the crankshaft's operational lifespan even under the most demanding conditions and ensuring compatibility with modern high-load engine oils.
A primary cause of engine vibration and premature bearing wear is an imbalanced rotating assembly. Each of our crankshafts undergoes individual dynamic balancing on computer-controlled machines. We calibrate the unit to a stringent standard of under 15 mm/s, a benchmark that exceeds many OEM requirements. This ultra-precise balancing minimizes vibrations, leading to smoother power delivery, reduced noise, and less stress on the entire engine block for enhanced longevity and driving comfort.
We build trust through verification. Every single 481F-1006010 crankshaft must pass a comprehensive battery of quality checks. This includes a 100% non-destructive Magnaflux inspection to detect surface flaws and a final high-pressure test where the oil galleries are pressurized to verify there are no internal leaks or porosity. This commitment to zero-defect manufacturing ensures you receive a component that is structurally sound and ready for a dependable, long-term installation.
| Parameter | Specification | Details / Standard |
| OEM Part Number | 481F-1006010 | Direct Interchange |
| Product Type | Engine Crankshaft | - |
| Material | Forged 42CrMo Alloy Steel | High-tensile, micro-alloyed steel for ultimate durability. |
| Manufacturing Process | Precision CNC Machining & Forging | Ensures micron-level dimensional accuracy. |
| Surface Hardness | 55-60 HRC | Achieved via advanced induction hardening process. |
| Core Hardness | 28-32 HRC | Maintains a tough, shock-absorbing core. |
| Dynamic Balancing Standard | < 15 mm/s | Exceeds industry standards for smooth operation. |
| Surface Treatment | Precision Polishing | Ultra-smooth journal surfaces for optimal bearing wear. |
| Quality Testing | 100% Magnetic Particle Inspection & Pressure Testing | Guarantees structural integrity and leak-free oil galleries. |
Here are specific application scenarios of Engine Parts Crankshaft:
Ideal for professional mechanics and specialized workshops performing comprehensive engine rebuilds. When an engine is disassembled due to rod knock, main bearing failure, or detected crankshaft wear, this component serves as the foundational core of the rebuilt engine. Its OEM-grade specifications and rigorous balancing ensure the restored engine operates with like-new performance and longevity, providing a reliable solution for your customers.
For enthusiasts and technicians building engines for enhanced durability or mild performance gains. The forged 42CrMo steel construction offers a higher safety margin over the stock cast part, better withstanding increased engine stress. The precision balancing (<15 mm/s) reduces parasitic power loss and allows the engine to rev more smoothly, contributing to both reliability and a more responsive driving experience in upgraded applications.
Specifically targeted to resolve issues of excessive engine vibration and unbalanced rotating assemblies. If diagnostic procedures point to a bent or unbalanced crankshaft as the root cause, this replacement unit is the definitive solution. Its ultra-precise dynamic balancing restores smooth operation, which in turn protects main and connecting rod bearings from premature wear, preventing further damage down the line.
In commercial or high-mileage scenarios, replacing the crankshaft as a preventive measure during a major scheduled overhaul is a strategic investment. Proactively installing a new, high-quality crankshaft prevents unexpected catastrophic failures and costly downtime. This crankshaft, with its advanced induction hardening (55-60 HRC), is built to endure the extended service intervals demanded in such applications.
For optimal performance and longevity, professional installation is highly recommended. Prior to assembly, carefully clean the oil passages and inspect all main and connecting rod bearings for correct clearance. Always use a manufacturer-recommended torque wrench and sequence to fasten the main bearing caps, adhering to specified values (typically ranging from 80-120 N·m, refer to specific engine manual). Ensure thorough lubrication of all journal surfaces before final assembly to prevent initial startup wear. This meticulous process guarantees the crankshaft's precision balance and durability are fully realized.
