Tungsten Carbide Carbon Coating for Bearings

When it comes to metal surface coating, Tungsten Carbide (WC) is one of the most durable elements which can be used in bearings to offer numerous benefits to both machinery and bearings which are critical for optimal working. To help you know more, This blog covers everything about Tungsten Carbide Carbon Coating for Bearings in detail.   There are a lot of challenges that industries face on day to day basis related to machinery such as overhauling, wear and tear, abrasions, breakdowns, etc. Since machinery has to be operated in an optimum manner to deliver expected results, the bearings should be capable to withstand challenges without any interruptions to ensure optimum performance. To offer extra protection to bearings and increase their service life to work under harsh mechanical environments, NEI provides Tungsten Carbide Carbon Coating (WC/C) on Large Dia Bearings (LDB).  

Understanding Frequent Problems in Industrial Machinery Applications

Machinery applications are often subject to a variety of problems, some of which are more frequent than others. Understanding the root cause of these problems can help to avoid them in the future:  
  • Paper Industry: Calandar Machine

The Calandar Machine in the paper industry may face challenges in very wide load range and zero load situations. It can create problems like micro welding, sliding, and smearing damage.
  • Hydraulic Applications: Pumps and Motors

The pumps and motors may face challenges such as low viscosity lubrication which can create problems like wear-tear and friction.
  • Power Plant: Coal Pulveriser

Coal pulverizers in power plants may face challenges due to contamination and vibration with low-viscosity lubrication. It can create problems like abrasions, Micropitting, smearing, etc.  

Solutions: How Tungsten Carbide Carbon Coating Solve Challenges

WC/C Coating on rolling elements helps in withstanding wear and tear and other critical issues due to the nature of composition which is harder than metal-containing amorphous carbon coating. Here are some of the salient features of Tungsten Carbide Carbon Coating for bearings:  
    1. Thin Coating: Tungsten Carbide Carbon Coating features a very thin coating of 1-2 ?m.
    2. High Adhesion Strength: Adhesive strength is important because it allows bonding with surfaces securely which makes the bearing work as usual without resulting in breakdown due to angular misalignments.
  • High Hardness: It helps in better surface contact between the components and increase the service life of bearings without wear and tear thus helping machinery components to work well.

Technical Aspects of Tungsten Carbide Carbon Coating

The Tungsten Carbide Carbon Coating offers improved bearing performance in terms of wear resistance under extreme working conditions. This is possible due to the hard coating on the rolling element which polishes the racing surface whereas the carbon layer offers lubrication for smooth performance. It promotes low friction and eliminates problems related to smearing and wear and tear which increases service life.  

Why Tungsten Carbide is a Reliable Material for Bearings Coating

Tungsten Carbide is an extremely hard ceramic material that comes in the form of grey fine powder particles. This material is known for its high resistance to wear, abrasion, and scratching, making it an ideal shield against surface damage from attacks like corrosion, erosion, and fatigue. Ceramic materials like WC are also very stable due to their higher melting point. In terms of offering a shield to bearings, the Tungsten Carbide Coating can be very powerful and useful.  

Benefits Tungsten Carbide Carbon Coating Offers to Bearings

There are many benefits that tungsten carbide carbon coating offers to bearings. This coating is extremely hard and wear-resistant, making it ideal for applications where bearings are subject to high levels of wear and tear. The coating also has excellent corrosion resistance properties, making it ideal for use in harsh environments. Additionally, the coating is very smooth, providing low friction and excellent sliding properties.

Understanding of Angular Contact Ball Bearings

Angular contact ball bearings are made to support combined loads. The inner and outer ring raceways are offset from each other to provide axial shaft location in both directions. This type of bearing is used in a wide variety of applications, including automotive and aerospace engineering. In this article, we will discuss more on Ball Bearings in more detail for your better understanding.

Design of Angular Contact Ball Bearings

These Bearings are designed with high precision and standards to fit aptly to various high-load applications. In terms of design, it consists of the cage, ring, and ball material. They have a contact angle of around 15 degrees and 25 degrees as compared to radial bearings which only have a contact angle of 8 degrees, this makes up for accommodating tilting movements. The other factor is that the design of angular contact ball bearings features one raised shoulder on the outer ring which makes it apt for faster speed and higher loads.

What do you mean by Angular Contact Ball Bearings?

Angular contact ball bearings are bearings that have balls in them that make contact with the inner and outer races at an angle. The angle of contact creates a “point contact” between the balls and the races, rather than the flat contact found in standard ball bearings. This design helps to increase the bearing’s capacity for carrying radial and thrust loads. The heavy carrying capacity makes it a perfect fit in many industries without any problem.

What is the importance of Angular Contact Ball Bearings?

Angular contact ball bearings are an important type of bearing used in a wide variety of applications. They are typically used in applications where there is a need for high precision and high load capacity. Also, these bearings are used in applications where there is a need for low friction and low noise.

Benefits of Angular Contact Ball Bearing

There are many benefits of using ball bearings. Some of the benefits include:
  1. Increased durability: These bearings are designed to withstand high loads. The balls in the bearing are separated by a metal cage, which helps to evenly distribute the load and prevent the balls from coming into contact with each other. This results in a more durable bearing that can withstand higher loads for longer periods.
  2. Reduced friction: These types of bearings have lower friction than other types of bearings. This is due to the way the balls are separated by the metal cage. The cage helps to reduce the amount of contact between the balls and the bearing surface, which reduces friction.
  3. Improved efficiency: These bearings are more efficient than other types of bearings because they have less friction. This means that they require less energy to operate, which can lead to savings in both energy and operating costs.
  4. Requires Less Axial Space: In such arrangements where there is limited axial space, it can fit in well without using multiple bearings.
  5. Designed for High Rigidity: Best to be used in those use cases where High Rigidity and Precision are the utmost priority.

What are the uses of Angular Contact Ball Bearings?

These bearings have balls in them that make contact with the inner and outer raceways at a point on the bearing. These bearings can support high radial loads and high axial loads. They are usually used in pairs so that they can cancel out any forces that may act on the bearing. These Ball Bearings are used in many different applications such as electric motors, pumps, fans, gearboxes, and compressors. Some common use cases are:
  1. To support high radial loads in applications such as electric motors and gearboxes
  2. To support high axial loads in applications such as compressors and pumps
  3. To cancel out any forces that may act on the bearing when used in pairs


Hope this article helped you to better understand what angular contact ball bearings are and how they work. These bearings can be used in a wide variety of applications, and with the right care and maintenance, they can last for many years.