Within the working pressure and certain temperature range, it shall have good sealing performance. With the increase of pressure, the marine intermediate bearing can automatically improve the sealing performance. The friction between the sealing device and the moving parts is small and the friction coefficient is stable. Strong corrosion resistance, not easy to aging, long service life, good wear resistance, automatic compensation after wear. The utility model has the advantages of simple structure, convenient use, convenient maintenance and low price.

In ship propulsion, the propeller is widely used, and the propeller with fixed or adjustable pitch is often used; The ship shaft is a device that transmits the power from the main engine to the propeller. The ship owner drives the propeller to rotate to generate thrust through the transmission system and shaft system, and overcomes the hull resistance to make the ship move forward or backward.

What are the standards for Dalian marine parts

1. the roller fairlead has a very simple structural design, which can be easily maintained and managed. It is easy to operate in the process of use and saves a lot of time.

2. the use of roller fairleads in the navigation field can reduce the economic burden to a certain extent, because the ship accessories can effectively reduce the rotation loss during operation, and the rotation efficiency is very high. The main engine is usually a large low-speed diesel engine with low propeller speed, but the propeller has a high propulsion rate.

3. the rolling fairlead is used in the navigation field. It is very reliable in the working process and has a long service life. The manufacturer does not have to worry too much that it is easy to be damaged in the working process and affect the normal operation.

Because the shaft can move in any direction, while the motor works, the shaft can only rotate. Theoretically, it is impossible to realize transmission. Not only that, the bearing will also affect the transmission. In order to reduce this effect, the bearings of high-speed bearings must be well lubricated. Some bearings have been lubricated and are called prelubricated bearings. Most bearings must have lubricating oil for high-speed operation, because friction will not only increase energy consumption, but also easily damage the bearings.

Marine fittings are used for in-depth study of their function and support, that is, they are literally used for bearings, but this is only part of their function. The essence of support is to bear radial load. It can also be understood as something used to fix the shaft. Including fast bearing, excellent automatic selection, that is, the shaft is fixed to be rotatable, and the axial and radial movements are controlled. Without bearings, the motor will not work.