Cylindrical pin
Цилиндрический штифт
Pasador cilíndrico
The OEM Cylindrical Pin 612639000061 is a precision-ground locating component manufactured exclusively for the Shacman X5000 heavy-duty truck platform. This essential dowel pin ensures perfect alignment and secure mechanical coupling between mating components such as engine block halves, transmission housings, suspension brackets, and various chassis assemblies where precise positional accuracy is absolutely critical.
Manufactured from high-grade hardened alloy steel with a precisely controlled diameter tolerance, the cylindrical pin delivers exceptional shear strength and dimensional stability under the most demanding operating conditions. The 612639000061 part features a ground surface finish that ensures smooth insertion and a secure interference or transition fit within the machined receiving bores of the Shacman X5000 assemblies.
Choosing genuine OEM cylindrical pins preserves the designed geometric relationships between critical vehicle systems and prevents the accelerated wear caused by component misalignment. The 612639000061 identifier provides complete traceability to Shacman’s rigorous material certification and dimensional inspection standards for precision locating fasteners.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | 612639000061 | Unique Shacman X5000 identifier |
| Product Name | Cylindrical pin | Also known as dowel pin or locating pin |
| Brand / Vehicle Model | Shacman X5000 | Heavy-duty truck series |
| Material | Hardened Alloy Steel | High tensile and shear strength |
| Surface Finish | Precision ground | Smooth insertion and accurate fit |
| Diameter Tolerance | h7 or m6 (OEM specified) | Ensures correct interference or transition fit |
| Length (mm) | As per OEM drawing | Matches factory specification precisely |
| Hardness Value | HRC 50-58 | Balanced toughness and wear resistance |
| Application | Engine, chassis, transmission | Alignment and shear load transfer |
| Packaging | Protective oiled wrapping | Shacman genuine labeled packaging |
The cylindrical pin precisely locates mating components relative to each other, establishing the exact geometric relationship designed by Shacman engineers. This ensures proper alignment of shafts, bearing bores, and mounting surfaces across the vehicle.
When subjected to lateral forces, the 612639000061 pin resists shearing that would allow components to shift. Its hardened steel construction provides a robust mechanical stop that protects surrounding bolts from loosening under dynamic loads.
During vehicle assembly and subsequent service operations, the cylindrical pin guarantees that components return to their exact original positions. This repeatability is essential for maintaining factory alignment specifications after repairs or overhauls.
The cylindrical pin 612639000061 is pressed or driven into a precision-reamed hole in one component, leaving a portion of the pin protruding to engage a corresponding hole in the mating component. Installation typically requires an arbor press or a brass hammer to avoid damaging the pin surface. The receiving holes must be thoroughly cleaned and deburred before insertion. In the Shacman X5000, these pins are found in critical locations such as the engine block-to-cylinder head interface, transmission bell housing alignment, suspension bracket mounting flanges, and various structural chassis connections. During reassembly, a light coating of anti-seize compound or assembly lubricant may be applied to facilitate future disassembly without compromising the precision fit.
Each cylindrical pin produced under OEM number 612639000061 begins as a certified alloy steel blank. The pin is centerless ground to achieve the exact specified diameter with an extremely tight tolerance band. This grinding process ensures a perfectly round cross-section and a consistent surface finish that promotes secure retention within the receiving bore while allowing controlled insertion force during assembly.
After grinding, the pins undergo heat treatment in a controlled atmosphere furnace to achieve the specified hardness value. The ends are chamfered to facilitate easy starting into the bore during assembly. Dimensional inspection is performed on a sampling basis from every production lot using precision micrometers and optical comparators. The hardness is verified using Rockwell testing. Each pin is then coated with a light rust-preventive oil and individually packaged in a sealed bag placed inside a Shacman branded box displaying the 612639000061 part number for complete traceability.
Cylindrical pins should be inspected whenever the components they locate are disassembled for service. Technicians should examine the exposed portion of the pin for signs of fretting corrosion, scoring, or deformation. The pin’s diameter should be measured with a micrometer and compared against the specification to ensure it has not worn below the allowable limit. A pin that shows any visible surface damage or measurable wear must be replaced.
If a cylindrical pin is loose in its bore or has spun, it indicates that the press fit has been compromised. The receiving bore should be carefully inspected for enlargement or damage. In such cases, the bore may need to be repaired or an oversize pin may be required. Always replace a damaged or worn pin with a new 612639000061 component to restore the precise component alignment that is critical for preventing premature wear of bearings, seals, and mating surfaces throughout the vehicle.
Procuring the authentic cylindrical pin for your Shacman X5000 assembly or repair is a simple process. Use the inquiry button above to verify current stock levels and receive a prompt quotation. We maintain comprehensive inventory of these precision locating components to support both production line requirements and field service repair operations around the globe.
To guarantee you receive the exact factory-specified component, always reference the OEM part number 612639000061 in your purchase order. Our logistics team supplies all necessary export documentation and certificates of conformity with every international shipment for efficient customs processing and inventory verification.
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Immediate dispatch for Shacman X5000 assembly and service needs.
Selecting the genuine Cylindrical Pin 612639000061 is a decision that protects the fundamental geometric integrity and structural reliability of your Shacman X5000 vehicle. Aftermarket dowel pins that are manufactured from lower-grade steel or with incorrect diameter tolerances can shear under load or fail to maintain the precise alignment required by the vehicle’s engineering design. A failed locating pin allows components to shift, causing accelerated wear on seals, bearings, and bolted joints.
The OEM cylindrical pin’s specific diameter, material hardness, and surface finish were validated through extensive finite element analysis and vehicle durability testing. Shacman engineers specified this exact dowel pin design to withstand the dynamic loads and vibration spectrums encountered in heavy-duty truck operations. The 612639000061 pin provides the consistent, reliable locating function that maintains proper shaft alignment, gear mesh patterns, and structural joint integrity across the entire vehicle platform.
Professional fleet maintenance teams and vehicle body builders worldwide standardize on the 612639000061 cylindrical pin for its guaranteed dimensional accuracy and proven load-bearing capacity. This small but vital component plays an indispensable role in maintaining the precise mechanical relationships that keep the Shacman X5000 operating safely and efficiently across hundreds of thousands of kilometers. Trust only the cylindrical pin that Shacman engineered and certified for this demanding application.
The cylindrical pin 612639000061 exemplifies the importance of precision locating elements in modern heavy-duty vehicle design. Unlike bolts, which are designed primarily to provide clamping force, cylindrical pins are engineered specifically to resist shear loads and maintain exact positional relationships. This functional separation allows engineers to design bolted joints that are optimized for clamp load without relying on bolt shank shear strength for component location, which would compromise both functions.
When removing a cylindrical pin during disassembly, it is important to use the correct extraction tools to avoid damaging the pin bore. A slide hammer with a suitable attachment or a properly sized pin punch should be used. Striking the pin directly with a steel hammer can mushroom the end and damage the precision bore as it is driven out. If a pin is stubborn due to corrosion, applying a penetrating oil and allowing it to soak will often ease removal without resorting to excessive force that could damage surrounding components.
For our international customers, we take exceptional care in packaging the 612639000061 cylindrical pins. Each pin is individually sealed in a VCI protective bag and packed in sturdy compartmented cartons to prevent any surface damage or corrosion during ocean freight and warehouse storage. Partner with us for a reliable supply of genuine Shacman locating components and maintain the precise assembly standards that your heavy-duty truck fleet requires for safe, efficient, and profitable operations.
