2018年10月10日星期三

What is water pump bearings?



Description 

Water pump bearings are simple and affordable; they can have either two rows of ball bearings or one row of ball bearings and one row of roller bearings, each well-spaced to ensure a longer life and their capacity to withstand higher radial loads. 

Advantages

The bearing is pre-lubricated with water-repellent grease which eliminates the need for maintenance, and is subjected to a special heat treatment during its production.

Special technical features

A shaft, which protrudes on both sides, is used instead of an inner ring, with the pulley mounted on one side and the pump impeller on the other.

Water pump bearings are used in various applications, for example:

* automotive engines;
* trucks;
* tractors;
* ship engines;
* etc.

2018年10月3日星期三

Ceramic Hybrid Bearing



Ceramic Hybrid Bearings have Steel races and Ceramic Balls. Ceramic Balls are suitable for applications where high loads, high speeds and extreme temperatures are factors. Long life and the need for minimal lubrication make this material appropriate for extreme applications. Ceramic is non-porous, non-magnetic, non corrosive and lighter than steel. In ball form, ceramic balls are also harder than steel and because ceramic balls are non-porous they are virtually frictionless and capable of spinning faster than steel balls.

Ceramic Balls are usually made of following materials:

  • Silicon Nitride (SiN4)
  • Alumina Oxide (Al2O3)
  • Zirconia Oxide (ZrO2)
  • Silicon Carbide (SiC)

Because ceramic is a glass like surface it has an extremely low coefficient of friction and is ideal for applications seeking to reduce friction. Ceramic balls require less lubrication and have a greater hardness than steel balls which will contribute to increased bearing life. Thermal properties are better than steel balls resulting in less heat generation at high speeds.

Ceramic Hybrid Bearing Benefits


  • High loads, high speeds and extreme temperatures are factors
  • Increased bearing life and decreased down time
  • Minimal need for lubrication
  • No cold welding between ceramic balls and races
  • Multi-purpose use in variety of machines and different production lines
  • High efficiency, low weight and small size

Ceramic Hybrid Bearing Applications


Ceramic hybrid bearings are widely used in electric motors, aerospace applications, performance racing vehicles, laboratory equipment, under water applications and more. Any application that requires higher speeds, lower friction and longer life are ideal for ceramic hybrid bearings.

Ceramic Hybrid Bearing Styles and Sizes


Ceramic hybrid bearings are available in variety of sizes and styles.

Full Ceramic Bearings



Full Ceramic Bearings have races and balls that are made entirely of ceramic material and are superior to common steel bearings in many ways. Ceramic is the perfect material for any application seeking to achieve higher RPM’s, reduce overall weight or for extremely harsh environments where high temperatures and corrosive substances are present.

Full Ceramic Bearings are usually made of following materials:

  • Silicon Nitride (SiN4)
  • Alumina Oxide (Al2O3)
  • Zirconia Oxide (ZrO2)
  • Silicon Carbide (SiC)

Because ceramic is a glass like surface it has an extremely low coefficient of friction and is ideal for applications seeking to reduce friction. Ceramic balls require less lubrication and have a greater hardness than steel balls which will contribute to increased bearing life. Thermal properties are better than steel balls resulting in less heat generation at high speeds.

Full Ceramic Bearing Benefits

  • Will not corrode or rust
  • 2/3 the weight of steel
  • Resistant to resist acids, alkali, blood, salt and water
  • Extremely low coefficient of friction and thermal expansion
  • Lower friction results in less energy consumed
  • Operating Temperature from as low as (-85°C) up to (+ 900°C)


Full Ceramic Bearing Applications

Full Ceramic bearings are used in specialty applications like chemical baths, vacuum environments, semiconductor manufacturing, food processing industries and more. Any extreme environment that requires non-corrosive, non-conductive or non-magnetic bearings is ideal for full ceramic bearings.

Full Ceramic Bearing Styles and Sizes

Full Ceramic bearings are available in variety of sizes and styles。