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Core Parameters and Design Positioning
Caterpillar 328-5574 connecting rod shingles are precision transmission components developed for heavy-duty diesel engines. The model number corresponds to a specific journal size and alloy ratio, and is suitable for the crankshaft connecting rod system of the 3406/3408 series engines. The product adopts a three-layer composite structure: a high-strength steel backing to provide support strength, an intermediate friction-reducing alloy layer (containing tin, lead and copper) to reduce friction coefficient, and a tin-plating layer on the surface to enhance corrosion resistance. Passing the CAT original dynamic balance test ensures the stability under the high speed of 2000-2800rpm.
Technical Advantages and Material Innovation
High Strength Composite Structure
The tile back is made of SAE 1020 cold rolled steel, hardened and tempered to HRC 45-50, capable of withstanding peak loads of 18MPa. The friction reducing alloy layer is bonded to the tile back through the centrifugal casting process, with a thickness of 0.3-0.5mm, and a microscopic porosity rate of less than 5%, effectively storing a film of lubricating oil and minimizing the risk of direct contact with metal.
Precision Manufacturing Process
adopts CNC grinding machine to machine the shingle body, the tolerance of inner diameter is controlled at ±0.01mm, and the surface roughness Ra≤0.8μm, which ensures a precise fit with the crankshaft journal. The design of positioning dowel avoids misalignment, and the batch information is marked by laser coding to realize quality traceability.
Wide Temperature Range Adaptability
Through special formula adjustment, the alloy layer maintains flexibility at low temperature (-20℃) and stable friction coefficient (0.008-0.012) at high temperature (150℃). The thickness of tin-plated layer is 0.02-0.03mm, which can slow down the corrosion caused by oil oxidation.
Applicable Scenarios and Applicable Models
328-5574 connecting rod tile is mainly used in the following scenarios:
Construction Machinery: It is suitable for the engine power transmission system of Caterpillar 3406B excavator and 3408 loader, supporting 24-hour continuous heavy-duty operation;
Mining Equipment: It is compatible with the diesel engine of crusher and mining truck, coping with the harsh environments such as dust, vibration, and so on;
Electric Power Industry: Compatible with 3412 generator sets to ensure the reliability of the backup power system.
When installing, a special torque wrench should be used to tighten the connecting rod bolts in accordance with the principle of “cross-progression”, and the recommended torque is 103±5N・m (refer to the C6.4 engine standard).
Suggestions and Value Advantages
For equipment maintenance managers, choosing 328-5574 connecting rod shingles can realize:
Efficiency Improvement: Precision fit reduces energy loss and improves engine fuel economy by 3%-5%;
Cost Control: Long-life design (≥8,000 hours of normal operating conditions) reduces the frequency of replacement, and in combination with preventive maintenance, it can reduce the annual maintenance cost by 25%;
Safety Guarantee: Safety: Reduced risk of downtime due to sudden failure, as verified by CAT's global engineering team through simulation of working conditions.
It is recommended to confirm the suitable model through the official Caterpillar Parts Store and give priority to products with original anti-counterfeiting mark.
Contact
If you need to get the technical parameter table, the list of suitable models or bulk purchase quotation, please feel free to contact us through the following ways:
WeChat / WhatsApp: +8615888032469
Email: allen@perkins-rx.com
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