nbc logo (2)
Office address
National Engineering Industries Ltd.
Khatipura Road Jaipur – 302006 Rajasthan, India
Phone Number

Toll Free: 1800 3000 6222
Telephone: +91 141 222 3221
Fax: +91 141 222 1926, 222 2259
CIN: U29130WB1946PLC013643

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.