The integral rubber bearing is made of neoprene rubber or nitrile rubber under high temperature groove pressing. It is recommended when the working medium of the stern shaft is water. 

According to the different external materials, rubber bearings are divided into class I and Class II. The class I refers to rubber bearings with copper matrix; the class II refers to rubber bearings with a non-metallic base coat. The marine integral rubber bearing is also oil and chemical resistant. The high durability rubber bushing is resistant to abrasion caused by particles in the seawater. The rubber bearing is used directly in water without any sealing devices.