Babbitt is the most well-known bearing materials, invented by the Americans named Babbitt, its white, also known as white alloy, and their use can be traced back to industrial revolution. A reduction of Xiji Ba Mott's alloy and lead alloy Chiba's is the only suitable rotation axis relative to the low hardness of the material, compared with other bearing materials, has better adaptability and pressure into the sexual, are widely used large marine diesel engines, turbines, alternators, and other mining machinery and large rotating machinery.

Pakistan's main ingredient is tin alloy, lead, antimony, copper. Including antimony and copper, to increase the alloy strength and hardness. Babbit is easily divided into three types: high-tin alloy, high-lead alloy and alloy (lead and tin are an important ratio). In all these alloys, the antimony and copper are as important alloying elements and hardening element, and its structure is hard, and dispersion in the soft matrix in the composition of intermetallic compounds.

Babbitt organizational characteristics, in the soft phase matrix phase particles uniformly distributed in hard and soft phase matrix to have a very good Babbit embedded hidden nature of compliance and anti-bite, and after running, soft body concave, convex hard particles to form a small gap between the sliding surface, a lubricating oil storage space and access, which will help reduce friction; on the convex hard particles from the supporting role, is conducive to carrying.

In addition to manufacturing Babbit bearing things, because of its soft texture and low strength, often to wire or powder coating in the steel substrate made of bearing used. To prevent the composition segregation and grain refinement, but also often a small amount of arsenic.

According to national standards, babbitt can be divided into tin alloy and lead alloy two. Lead based alloy strength and hardness than the low-tin alloy, corrosion resistance is also poor. Therefore, in the use of Babbitt they usually use tin-based alloys, the commonly used grades are ZChSnSb11-6, ZChSnSb8-4 and so on. Although the performance of lead-based alloys without tin-based alloy is good, but many customers still choose to use, because it is more economical to use its popular brands have ZChPbSb16-16-2, ZChPbSb1-16-1 and so on.

Source:http://www.mhcmp.com/