The main bearing shell is the "shock-absorbing guard" inside the engine, closely attached between the crankshaft and cylinder block. It protects core components by reducing direct metal friction, while dispersing pressure during operation to ensure smooth rotation of the crankshaft. If the main bearing shell is worn or poorly fitted, it will cause imbalance in crankshaft operation, leading to severe engine vibration, increased noise, and even irreversible damage to the crankshaft and cylinder block, seriously affecting equipment life.
Caterpillar CAT main bearing shell focuses on adaptability and wear resistance in design, which can accurately fit the structural dimensions of the corresponding engine, withstand friction and pressure during long-term operation, and maintain stable protective performance. It is compatible with various Caterpillar CAT engine models, and can play a reliable role in both high-intensity operation of heavy-duty work and continuous use under conventional working conditions, reducing downtime maintenance caused by bearing shell failures and extending the engine maintenance cycle.
Ningbo Qiuning Trading Co., Ltd., as the supplier of Caterpillar CAT main bearing shells, provides two product options: original and auxiliary to meet different user needs. Whether you use it for construction machinery, generator sets or other power equipment, you can choose suitable products according to actual use scenarios and budgets.
If you want to know more about the product, such as specific applicable models and installation precautions, please feel free to consult. Contact information: WeChat/WhatsApp: +8615888032469; E-mail: allen@perkins-rx.com.
Caterpillar Caterpillar Excavator Series: 312 D、313D、315D、318D、320C、320CL、320D、320DL、323D、323DL、324D、 326D、325C、325D、329D、329DL、330D、330C、330CL、330DL、336D、336DL、345C、345CL、345D、345DL、349D、349DL、365C、365CL、374D、374DL、385C、385CL、390D、390DL、305.5、306、307、307C、307D、308、308C、308D、305.5E、306E、307E、308E、305.5E2、306E2、307E2、308E2、313D2、318D2、320D2、323D2、 326D2、329D2、330D2、336D2、349D2、374F、390F。
Caterpillar Engine Series: 4 M40、C4.2、C6.4、C6.6、C7、C-9、C9、C13、C15、C18、C10、C11、C12、C16、C-16、C-15、C27、C32、C175； 3066, 3056, 3054, 3116, 3126, 3204, 3304, 3306, 3406, 3408, 3412, 3456, 3504, 3508, 3512, 3516, 3606, 3608, 3612, 3616.
Caterpillar engine models: C-9, C-10, C-11, C-12, C-13, C-15, C-16, C-18 C0.5，C0.7，C1.1，C1.5，C1.6，C2.2，C3.3，C3.4，C4.4，C6.4，C6.6，C7，C9，C11，C12，C13， C15，C18，C27，C32，C175，C280
