

Idler Gear Shaft
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This OEM idler gear shaft (part 612630030151) is a precision-engineered timing drive support component designed specifically for Shacman heavy-duty commercial truck diesel engines. The 612630030151 idler gear shaft provides a stable mounting axis for the idler gear, ensuring proper gear alignment and smooth rotation under all operating conditions.
Manufactured from high-quality materials with precision machining, exact dimensional tolerances, and durable surface treatment, this 612630030151 idler gear shaft withstands extreme torque loads, high rotational speeds, continuous bending stress, and prolonged operation during demanding heavy-duty commercial vehicle applications.
Replacing a worn, scored, or bent idler gear shaft with this genuine 612630030151 component restores proper idler gear support and prevents timing drive failure. The OEM number guarantees exact dimensional specifications and factory-engineered quality for Shacman engine platforms.
| Parameter | Specification |
|---|---|
| OEM Part Number | 612630030151 |
| Product Name | Idler Gear Shaft |
| Brand | Shacman |
| Position | Engine Timing Gear Train – Idler Gear Mounting Axis |
| Material | High-Strength Hardened Alloy Steel with Precision Machining |
| Manufacturing Process | Precision Forging, CNC Machining, Centerless Grinding, Heat Treatment, Quality Inspection |
| Surface Protection | Case-Hardened Surface with Anti-Corrosion Treatment |
| Function | Rigid Support Shaft for Idler Gear Rotation and Timing Gear Alignment |
The 612630030151 idler gear shaft serves as a vital timing drive support component engineered to provide a stable mounting axis for the idler gear within Shacman heavy-duty diesel power units.
This 612630030151 idler gear shaft is mounted in the engine block or front cover, providing a rigid cantilevered support that positions the idler gear at the precise center distance between crankshaft and camshaft gears.
The precision-ground outer diameter of the 612630030151 provides a smooth bearing surface for the idler gear bushing or bearing, minimizing friction while maintaining accurate gear positioning under radial loading.
This 612630030151 component absorbs the radial reaction forces from gear tooth meshing, resisting bending deflection that could cause gear misalignment and accelerated tooth wear.
The high-strength hardened alloy steel construction with case-hardened surface provides exceptional wear resistance and bending stiffness, maintaining precise idler gear position throughout extended service intervals.
The 612630030151 idler gear shaft is engineered to meet the specific diameter, length, and material requirements of Shacman engine timing drive systems, assuring seamless compatibility.
By providing dependable idler gear support, this shaft contributes directly to proper timing gear alignment, quiet operation, and maintained engine performance in demanding operational environments.
The 612630030151 idler gear shaft is manufactured from premium high-strength hardened alloy steel with precision CNC machining and centerless grinding, delivering exceptional dimensional accuracy and surface finish.
The precisely controlled outer diameter and straightness of the 612630030151 ensure proper running clearance with the idler gear bearing, providing smooth rotation while maintaining accurate gear center distance.
The carefully designed mounting flange or press-fit diameter of the 612630030151 provides secure retention in the engine block, preventing shaft loosening or rotation that could compromise timing gear alignment.
Each idler gear shaft undergoes rigorous quality verification, including dimensional inspection, surface finish measurement, and hardness testing to guarantee its performance in demanding support applications.
The material selection for the 612630030151 prioritizes both surface hardness for bearing wear resistance and core strength for bending stiffness under the radial loads from gear tooth meshing.
The 612630030151 idler gear shaft’s design has been validated through extensive engine dynamometer and durability testing to ensure reliable support throughout the complete engine service interval.
Replacement of the 612630030151 idler gear shaft requires removing the timing cover and idler gear assembly, extracting the old shaft from the engine block, and installing the new shaft with proper alignment and retention.
After installation of the 612630030151 idler gear shaft, verify that the shaft is fully seated and properly secured, and that the idler gear rotates freely without excessive radial play or binding.
Periodic inspection of the 612630030151 idler gear shaft for wear patterns, scoring, or loosening is recommended during timing system service and engine overhaul maintenance intervals.
When installing the 612630030151 idler gear shaft, ensure that the mounting bore in the engine block is clean and free of debris, and that the shaft is properly lubricated before idler gear installation.
It is critical to verify that the 612630030151 idler gear shaft is not bent or damaged before installation, as even slight bending can cause idler gear misalignment and rapid timing gear tooth wear.
During timing system service, pay close attention to the idler gear shaft of the 612630030151 for signs of surface scoring, fretting corrosion, or mounting loosening indicating the need for shaft replacement.
Each 612630030151 idler gear shaft undergoes thorough dimensional inspection, surface finish verification, and hardness testing to guarantee strict compliance with OEM engineering specifications.
We provide complete quality documentation for every 612630030151 idler gear shaft, including material certifications and inspection reports for engine service records and workshop quality assurance compliance.
The idler gear shaft is tested for dimensional accuracy and mechanical properties to ensure proper fitment and reliable idler gear support in the most demanding engine operating environments.
Our quality management system includes bending fatigue testing and wear resistance verification on the 612630030151 to guarantee consistent manufacturing quality and extended service durability.
We maintain complete traceability of all materials used in the 612630030151 idler gear shaft, from raw material certification to finished component inspection, ensuring total accountability throughout the production process.
Visible scoring, grooving, or wear marks on the 612630030151 idler gear shaft surface indicates bearing failure or lubrication deficiency, requiring immediate shaft replacement to prevent idler gear seizure.
Bending, bowing, or loss of straightness on the 612630030151 indicates overloading, necessitating prompt replacement during timing system service operations to restore proper gear alignment.
If the idler gear shaft exhibits fretting corrosion, mounting surface wear, or loosening, the 612630030151 component should be replaced immediately to restore proper positioning and prevent timing gear damage.
Following any idler gear seizure, timing gear failure, or engine overspeed event, the 612630030151 idler gear shaft must be inspected and replaced if any surface damage or bending is detected.
If the shaft shows signs of overheating discoloration, blue tempering, or surface cracking, the 612630030151 requires replacement along with investigation of the root cause lubrication or cooling system issue.
Standard engine inspections should include evaluation of the 612630030151 idler gear shaft for early indicators of surface wear, straightness deviation, or mounting integrity requiring corrective action.
Inferior aftermarket idler gear shafts with incorrect specifications or substandard materials can lead to timing system failure and engine damage. We exclusively supply authentic components like the 612630030151 manufactured to precise OEM engineering standards.
The part number 612630030151 is clearly identified on the packaging for unambiguous verification. Our extensive international logistics infrastructure ensures secure protective packaging and rapid dispatch to any worldwide destination with complete export documentation.
All procurements of 612630030151 include comprehensive quality certification, ensuring conformity with local import regulations and engine timing system service documentation requirements in your jurisdiction.
We provide highly competitive pricing structures and dependable shipping alternatives for the 612630030151 idler gear shaft, facilitating convenient access for our international clientele to maintain their Shacman engines with authentic OEM support components.
Our dedicated client support team stands prepared to address any technical inquiries or logistical concerns regarding the 612630030151 idler gear shaft, encompassing timing system consultations to comprehensive bulk fleet procurement processing.
Complete 612630030151 idler gear shaft. Ready for professional installation featuring precision-ground outer diameter, case-hardened bearing surface, and anti-corrosion treatment for dependable idler gear support and alignment performance.
Expert technical guidance on engine timing drive support components and proper installation procedures for the 612630030151 idler gear shaft is readily available. We assist in ensuring reliable idler gear operation for your Shacman engine application.
Complete quality documentation for 612630030151 is available upon request, encompassing material certifications and dimensional inspection reports for your permanent maintenance and service records.
For current stock availability of the genuine 612630030151 idler gear shaft, please use the contact buttons above.