Ceramic Bearing
What is Ceramic Bearing?
We provide a variety of ceramic bearings for different applications. Some of the types of ceramic bearings they provide include:
Full Ceramic Bearings: These bearings have both the inner and outer races and balls made of ceramic material, such as silicon nitride (Si3N4) or zirconia (ZrO2). Bearings are designed for applications operating in extreme special environments where conventional bearings are not suitable for. Full ceramic bearings are known for their excellent corrosion resistance, high temperature capability, and low friction.
Benefits Of Ceramic Bearing
Manufacturers prize ceramic bearings because of their speed advantage over their steel counterparts. This benefit stems from their four main characteristics:
- Reduced rolling resistance
- Reduced weight
- Increased durability
- Increased stiffness
- Reduced rolling resistance mainly results from the ceramic balls’ increased smoothness, dimensional stability, and increased uniformity over steel ball bearings. These properties ensure that applied loads are uniformly distributed over all rolling elements. Additionally, ceramic materials have a significantly lower coefficient of friction (~20–30 times less) than steel ball bearings with standard seals and lubrication. This reduced friction results in reduced rolling resistance and faster rotational speeds.
- The reduced weight of ceramic bearings also contributes to their overall enhanced performance over steel bearings. Ceramic materials can weigh up to 40% less than comparable steel bearings. This reduced weight translates to decreased centrifugal loads exerted on the outer race as the bearing spins. This reduction of forces allows ceramic bearings to operate up to 20–40% faster than conventional steel bearings while using considerably less energy to maintain their speed.
- Ceramic bearings are also harder than steel bearings and therefore are more durable. Studies show that ceramic bearings can last anywhere between 5 and 20 times longer. The smoother surface of the ceramics also significantly reduces the risk of bearing seizure with little to no lubrication. Furthermore, ceramic bearings can operate in harsh environments due to their resistance to corrosion and degradation. Finally, their electrical insulation properties eliminate the risk of electrical erosion and pitting of the rolling elements.
Application Of Ceramic Bearing
Space-exploration applications and other aerospace industry products often rely on ceramic bearings. The lightweight and vacuum-compatible bearings make them ideal for satellites and spacecraft, which require optimal weight capacities to enhance flight dynamics and acceleration. Additionally, these bearings can operate without lubricants such as heavy greases and oils, which tend to attract contaminants that interfere with sensitive electrical components. There are many common applications that touch our daily life. Most Railroad Traction Motors are experiencing improved life from Ceramic materials. Chemical and mixing applications also benefit from the use of ceramic bearings, especially in terms of preventing contamination. Because ceramic bearings are chemically inert, they do not react with harsh chemicals or leach particulates into sensitive solutions. The corrosion-resistant property of ceramic bearings makes them ideal for washdowns with strong acidic or alkaline chemical cleaning solutions. Furthermore, the lack of oil- and grease-based lubrication reduces the chance of bacterial growth and contamination.
Some additional applications of ceramic bearings include:
- High-speed mills
- High-speed machining
- Precision instruments
- Pumps and compressors
Packaging Of Ceramic Bearing
Shipping port: Qingdao/Tianjin
Supply Ability: 100,000 pieces per month
Package：
- Plastic bag + single box + carton + plywood pallet
- Neutral industrial packaging + neutral carton packaging + pallet
- According to customer requirements
Factory Of Ceramic Bearing
The company adopts warehousing supply, has a large warehouse and sufficient spot inventory, and has an extensive marketing network. We can not only provide customers with high-quality products, reasonable prices, excellent pre-sales and after-sales services and professional technical consultation, but also Having a group of experienced sales and after-sales engineers can help your company eliminate worries in terms of equipment loading and unloading maintenance, maintenance testing, and technical consultation.
FAQ Of Ceramic Bearing
Due to their internal design, ball bearings cannot usually be disassembled down to the component level; therefore, they cannot usually be refurbished.
The two biggest factors affecting the starting and running torque of the bearing are the seal design and lubricant selection. The shaft and bearing seat fit, component accuracy and surface finish, and retainer design also have some influence.
In higher speed applications, non-contact sealing devices are usually required to minimize operating torque and heat generation, so oil baffle rings and secondary sealing devices are usually required. Flowing oil lubrication systems are usually the best solution.
After proper installation, most seated bearings only need to be relubricated regularly with a small amount of grease and checked to ensure that they operate at low temperatures, quietness, and sufficient accuracy.
This depends on many factors, such as the application’s load conditions, operating speed, duty cycle, temperature, and operating environment. The technical information section of this website provides some basic information. Our engineers can help you determine more specific theoretical life calculations.
When noise and/or operating temperature increase or operating accuracy decreases, bearings should be replaced.
Lubricant of choice
Lubrication joint type or location
Sealing materials and design options
Dimensions, suitable for housing or insert
Fixing screw options
Paint the shell in any color
Too little or too much lubricant
Incorrect lubricant type
Poor bearing installation
Improper internal clearance
Excessive load and/or speed
Extreme temperature
Pollution
Movement between mounting surfaces
The noise emitted by the bearing may be caused by a combination of one or more factors, such as insufficient working clearance, excessive working clearance, changes in working clearance due to temperature, damage to the contact area, contamination, inappropriate lubricants or The raceway is damaged.
The noise emitted by the bearing may be caused by a combination of one or more factors, such as insufficient working clearance, excessive working clearance, changes in working clearance due to temperature, damage to the contact area, contamination, inappropriate lubricants or The raceway is damaged.