Camshaft Timing Gear
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The OEM Camshaft Timing Gear 1009421562 is a precision-engineered driven gear manufactured exclusively for the Shacman X5000 heavy-duty diesel engine. This critical component mounts directly to the camshaft flange and receives rotational motion from the crankshaft via the idler gear, ensuring that valve opening and closing events remain perfectly synchronized with piston position throughout every phase of the four-stroke cycle.
Fabricated from premium hardened alloy steel with precision-ground helical gear teeth and accurately machined mounting bolt holes, the camshaft timing gear delivers exceptional tooth strength, silent operation, and unwavering timing stability. The 1009421562 part features a clearly stamped timing mark that ensures foolproof alignment with the mating idler gear and crankshaft gear during engine assembly, eliminating any possibility of incorrect valve timing.
Installing a genuine OEM camshaft timing gear preserves the precise valve timing events that are fundamental to engine power, fuel economy, and emissions performance. The 1009421562 identifier provides complete traceability to Shacman’s rigorous metallurgical standards and precision manufacturing quality assurance processes for mission-critical engine timing drive components.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | 1009421562 | Unique Shacman X5000 identifier |
| Product Name | Camshaft Timing Gear | Driven gear mounted on camshaft |
| Brand / Engine Model | Shacman X5000 | Heavy-duty diesel engine series |
| Material | Hardened Alloy Steel | Superior tooth strength and fatigue resistance |
| Tooth Type | Helical gear teeth | Gradual engagement for quiet operation |
| Tooth Surface | Precision ground and super-finished | Smooth mesh and minimal friction |
| Mounting Type | Bolted flange connection | Secure attachment to camshaft flange |
| Timing Mark | Clearly stamped alignment mark | Ensures correct valve timing phasing |
| Application | Camshaft drive in front timing gear train | Receives drive from idler gear |
| Packaging | Rust-preventive oiled wrapping | Shacman genuine labeled packaging |
With exactly twice as many teeth as the crankshaft gear, this camshaft gear drives the camshaft at precisely half the engine speed. This 2:1 reduction is fundamental to the four-stroke cycle, ensuring each valve opens once per two engine revolutions.
The 1009421562 gear bolts securely to the camshaft flange with multiple high-tensile bolts. This rigid connection eliminates any possibility of relative movement between the gear and camshaft, maintaining absolute timing accuracy under all torque loads.
A permanently stamped timing mark on the gear face provides an unmistakable reference point for aligning the camshaft with the crankshaft and idler gear during assembly, eliminating the risk of incorrect valve timing installation errors.
The camshaft timing gear 1009421562 is installed onto the front flange of the camshaft within the timing gear case of the Shacman X5000 engine. Before installation, both the gear’s mounting face and the camshaft flange must be meticulously cleaned of any oil residue, debris, or old gasket material. The gear is positioned over the camshaft locating dowel, ensuring that its bolt holes align perfectly with the threaded holes in the flange. The mounting bolts are inserted with thread locking compound applied as specified, and they are torqued incrementally in a cross pattern to the factory specification. The stamped timing mark on the gear face must be clearly visible and correctly oriented. The camshaft is then rotated until this timing mark aligns precisely with the corresponding marks on the idler gear and crankshaft gear. After all three timing marks are verified as perfectly aligned, the engine is rotated through two complete revolutions by hand to confirm that the marks return to exact alignment before the timing cover is installed.
Each camshaft timing gear produced under OEM number 1009421562 begins as a certified alloy steel forging. The forging process compresses and strategically aligns the internal grain structure to follow the gear’s form, maximizing its bending fatigue resistance at the critically stressed tooth root fillets. The blank is precision-turned to establish the hub face, bolt circle, and overall profile. The helical teeth are then generated using a high-precision CNC hobbing machine that produces the exact involute profile and helix angle specified by Shacman engineering for optimal load sharing and silent operation.
After hobbing, the gear teeth undergo case hardening through a controlled atmosphere carburizing process that creates a deep, hard, wear-resistant surface layer while preserving a tough, impact-resistant core. The teeth are then finish-ground using precision gear grinding machines to achieve the final tooth profile accuracy, surface finish, and to eliminate any distortion introduced during heat treatment. The bolt holes are precision-drilled and the mounting face is surface-ground flat. A timing mark is permanently laser-etched onto the gear face with absolute positional accuracy. Each gear is inspected on a gear measuring center for tooth profile, helix angle, pitch, and runout. The gear is preserved with rust-preventive coating and packaged in a Shacman branded box displaying the 1009421562 part number.
The camshaft timing gear should be carefully inspected whenever the engine front cover is removed for timing system service or during a complete engine overhaul. Technicians must examine every tooth flank for signs of pitting, spalling, micropitting, or abrasive wear patterns. A bright light and moderate magnification can reveal early-stage surface fatigue that precedes more serious tooth damage. The tooth contact pattern should be evaluated using machinist’s blue to confirm full-face contact with the idler gear.
The gear mounting flange and bolt holes must be checked for any evidence of fretting, cracking, or elongation. Loose mounting bolts can cause the gear to fret against the camshaft flange, damaging both components. Any gear that exhibits tooth surface degradation, pitting, visible wear, or mounting damage must be replaced with a new 1009421562 component. It is standard professional practice to inspect and often replace the mating idler gear simultaneously to ensure perfectly matched tooth contact patterns and to restore the timing gear train to factory specifications.
Procuring the authentic camshaft timing gear for your Shacman X5000 engine timing service is a straightforward process. Use the inquiry button above to verify current stock availability and request a competitive quotation. We maintain strategic inventory of these critical driven gears to support both individual engine overhauls and comprehensive fleet maintenance programs across all international markets.
To ensure you receive the exact factory-specified component with full metallurgical and dimensional compliance, always reference the OEM part number 1009421562 in your purchase order. Our logistics team provides complete export documentation and material certifications with every international shipment for efficient customs clearance and inventory verification at your facility.
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Ready for immediate global dispatch for Shacman X5000 engines.
Investing in the genuine Camshaft Timing Gear 1009421562 is a decision that directly protects the fundamental valve timing precision and long-term mechanical integrity of your Shacman X5000 engine. Aftermarket camshaft gears manufactured from inferior steel or with imprecise tooth profiles can introduce excessive backlash into the gear train. This mechanical looseness causes timing scatter, where the camshaft experiences continuous micro-fluctuations relative to the crankshaft, degrading combustion efficiency, reducing power output, and increasing harmful exhaust emissions.
The OEM camshaft gear’s specific tooth profile modifications, helix angle, material composition, and heat treatment were developed through exhaustive computer-aided engineering and validated on Shacman’s engine dynamometers under the most severe load, speed, and temperature conditions. Every design parameter was optimized to provide silent, efficient power transmission and the unwavering timing stability that the X5000 engine demands. The 1009421562 gear delivers the flawless camshaft drive that is the very foundation of the engine’s breathing, power production, and fuel economy.
Professional engine rebuilders and fleet maintenance technicians worldwide standardize on the 1009421562 camshaft timing gear for its guaranteed dimensional accuracy, proven material quality, and consistent, trouble-free performance in the field. This precision gear is the final driven element in the timing drive chain that orchestrates the engine’s valve events with absolute precision. Trust only the camshaft timing gear that Shacman engineered and certified for the uncompromising requirements of the X5000 heavy truck platform.
The camshaft timing gear 1009421562 operates in a continuous flood of pressurized engine oil within the front timing case. This generous lubrication serves multiple critical functions: it cools the gear teeth as they mesh under the substantial loads transmitted from the crankshaft, it provides the hydrodynamic film that prevents metal-to-metal contact between meshing teeth, and it lubricates the camshaft thrust face and bearing journals. The helical tooth design naturally pumps oil across the contacting flanks, ensuring that every loaded surface receives adequate lubrication under all operating conditions.
The 2:1 reduction ratio achieved by this camshaft gear relative to the crankshaft gear is mathematically absolute, determined by the exact tooth count of each gear. The camshaft gear has precisely twice as many teeth as the crankshaft gear. This relationship ensures that for every two complete rotations of the crankshaft, the camshaft completes exactly one rotation, which corresponds to one complete four-stroke cycle for each cylinder. The precision with which the 1009421562 gear maintains this timing directly affects the engine’s volumetric efficiency, combustion quality, and turbocharger response.
For our international customers, we take exceptional care in packaging the 1009421562 camshaft timing gear to prevent any tooth damage or corrosion during global transit and extended warehouse storage. Each gear is individually wrapped in VCI protective film and packed in a custom foam-lined, reinforced carton that completely immobilizes the gear and protects the precision-ground tooth surfaces from any impact or vibration. Partner with our global supply network for a reliable source of genuine Shacman timing drive components, and maintain your fleet’s engines at the highest level of valve timing accuracy, operational smoothness, and long-term mechanical dependability.
