Winstar Mercury 3.8L 3.9L 4.2L Crankshaft Main Bearing , Main Rod Bearings

Main Rod Bearings for 94 - 07 Ford Winstar Mercury 3.8L 3.9L 4.2L 232Cu V6 OHV

Product Component: Engine Bearing 8 PCS

Car Application:

94 - 07 Ford Winstar Mercury 3.8L 3.9L 4.2

What is an engine bearing

In a piston engine, the main bearings are the bearings on which the crankshaft rotates, usually plain or journal bearings. The bearings hold the crankshaft in place and prevent the forces created by the piston and transmitted to the crankshaft by the connecting rods from dislodging the crankshaft, instead forcing the crank to convert the reciprocating movement into rotation.

While some small single-cylinder engines have only one main bearing, designed to deal with the bending moment exerted by the crank as a result of the force from the connecting rod, most engines have at least two main bearings, one at each end of the crank shaft and may have as many as one more than the number of crank pins. Increasing the number of bearings in an engine will generally increase the size and cost of the engine, but also provides stability to the crankshaft, which would otherwise have to endure greater bending moments from having the crank pin further from a bearing. The combination of bearing number and crankshaft design can also have an effect on engine balance; a more stable crankshaft will better avoid unbalance from flexing, but increasing the crankshaft length or girth to accommodate an additional bearing increases the rotational inertia of the crankshaft, which can have the opposite effect.

Our Advantage

Maojia Industry is a leader of engine bearing in domestic, because of applying the new technology and solution to technology difficulites and keep OE quality. Our products improve the disadvantage of all the main bearing,making them longer use life. We already supply more than 1000 kinds of internal combusion engine bearings to the global aftermarket. At present, our company is the only one factory in China producing thrust bearing who can reach the OE quality. The successful research and develop of the product fills in the blank of edge bearing technology, and open a new situation for edge bearing.

Ningbo Maojia International Trading Co., Ltd is an industry and trade intergrating company which focuses on autoparts importing and exporting. It has taken a leading position in domestic and international markets with high-quality products and professional technology. Following the trend of the development of international automobile industry, based on the development and inspection of the module product, Maojia supplies timing belt kit, chain kit, full gasket set and a series of autoparts. Our products cover a wide range of gasket sets, and the application includes European, American, Japanese and Korean cars and diesel trucks. The quality of the main parts, like head gasket and oil seal, reaches OE standard. The products are supplied to many domestic automotive OEMs and the quality assurance reaches 100000 kilometers.

Recent years have witnessed the company’s intergration of the product supply chain and the construction of the foreign sales channels. Knowing the foreign autoparts markets well, the company has abundant of purchasing and marketing. The company has several manufacture bases through alliance and holding, which has formed a large supplier alliance system, becoming an important part of the value chain. In the international market, based on years of developing and accumulating, Maojia’s products have gained a huge success in American, European, the Middle East and African markets. With hunderds of customers cooperating with us in long term, we also established our own warehouse and logistic distribution center at abroad.

The company takes warehouse inventory management, which can meet individual need of different kinds of customers. Sufficient stock of products is available, especially the popular ones, to meet customers’ demands at any time. Meanwhile, our company actively imports advanced technology at home and abroad, making use of automatic assembly line and ERP system. Product inspection and quality control is our focus. With ISO9001/14001 Management System Certification, the company is dedicated to offering brand products with high-quality and competitive price to our customers.

Welcome customers from home and abroad to our company for a visit and develop with us together.