High Temperature Bearing Manufacturer
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Comprehensive Guide to High Temperature Bearings: Understanding Types, Manufacturing Process, and Maintenance
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High temperature bearings are engineered to perform reliably in conditions where traditional bearings falter. As businesses across industries strive to increase efficiency and reduce downtime, the need for components that can withstand extreme heat is more critical than ever. High temperature bearings meet this need by offering enhanced durability and stability in environments that would degrade ordinary bearings. Ideal for applications ranging from metalworking to food processing, these bearings help companies maintain productivity and reduce maintenance costs, even under the most demanding conditions.
Let’s see what are high temperature bearings!
What are High Temperature Bearings?
High temperature bearings are specialized bearings designed to operate effectively in environments where temperatures are much higher than standard conditions. These bearings can endure extreme heat without losing functionality, making them essential for machinery used in industries like steel manufacturing, glass production, and food processing, where temperatures can reach up to 350°C (662°F) or more.
The materials and lubricants used in high temperature bearings are selected specifically for their ability to withstand thermal expansion and resist degradation under high heat, ensuring that the machinery continues to operate smoothly and reliably even under harsh conditions.
Key Features
High temperature bearings are specifically designed to address the challenges posed by operating in environments where conventional bearings would quickly degrade. These bearings incorporate several distinctive features that enable them to perform reliably under extreme thermal conditions:
Heat Resistant Materials: The materials used in high temperature bearings, such as advanced stainless steels and ceramics, are chosen for their ability to withstand high temperatures without losing structural integrity or functionality. These materials resist oxidation and corrosion, which are common issues at high temperatures.
Specialized Lubrication: Lubricants used in these bearings are formulated to remain stable and effective at high temperatures. These greases or oils are enhanced with additives that prevent breakdown and oxidation, ensuring consistent lubrication and reducing the risk of friction and wear.
Robust Cage Designs: The cages or retainers in high temperature bearings are manufactured from materials like high-temperature polymers, graphite, or specially treated metals that maintain their properties under heat stress. These designs ensure minimal contact with rolling elements to decrease wear and friction.
Enhanced Sealing Solutions: Seals and shields are critical in high temperature applications to prevent lubricant leakage and the ingress of contaminants. Materials used for sealing are selected based on their ability to endure high temperatures and aggressive industrial environments.
Dimensional Stability: High temperature bearings are designed to maintain dimensional stability under high heat, which prevents alterations in form that could lead to malfunction or increased wear. This stability is crucial for ensuring the longevity and reliability of the bearing in critical applications.
Low Maintenance Requirements: Given their durability and resistance to harsh conditions, high temperature bearings typically require less maintenance. This reduces downtime and maintenance costs, which is vital for industries where high temperature processes are critical.
Adaptability: These bearings are often designed to match the dimensions of standard bearings, making them interchangeable and easy to integrate into existing machinery without the need for extensive modifications.
High Temperature Bearings types
Our high-temperature bearings are built to last in extreme heat so you can keep going and going without worrying about your bearings. We have three main types of high-temperature bearings:
Full Ball Bearings
Description: These bearings are designed to take both radial and axial loads. They work great in high-temperature environments. They can handle a lot of weight and last a long time. You can use them in lots of different industrial applications.
Key Features:
- High load capacity
- Durable under extreme heat
- Versatile for multiple applications
Steel Cage Bearings
Description: These bearings are built tough, so they stay strong. They’re made to go fast in high heat. You can count on them to last a long time and not let you down.
Key Features:
- Robust steel cage for enhanced stability
- High-speed performance
- Reliable under high temperatures
Ceramic Bearings
Description: These bearings are made from special ceramic materials. They can take the heat and won’t corrode. They’re great for applications where you don’t want things to expand when they get hot. They’re also great when you need something super precise that works great in extreme conditions.
Key Features:
- Superior heat and corrosion resistance
- Minimal thermal expansion
- High precision and performance
DGBB High Temperature Bearing Size Chart
| Bearing No. | Sealed type | Bore(d) (mm) | Outer(D) (mm) | Width(B) (mm) | Beared temperature | Speed（RPM） | |
|---|---|---|---|---|---|---|---|
| 6000 | ZZ | 10 | 26 | 8 | 300-500° | 282 | |
| 6001 | ZZ | 12 | 28 | 8 | 300-500° | 282 | |
| 6002 | ZZ | 15 | 32 | 9 | 300-500° | 242 | |
| 6003 | ZZ | 17 | 35 | 10 | 300-500° | 222 | |
| 6004 | ZZ | 20 | 42 | 12 | 300-500° | 200 | |
| 6005 | ZZ | 25 | 47 | 12 | 300-500° | 170 | |
| 6006 | ZZ | 30 | 55 | 13 | 300-500° | 130 | |
| 6007 | ZZ | 35 | 62 | 14 | 300-500° | 110 | |
| 6008 | ZZ | 40 | 68 | 15 | 300-500° | 100 | |
| 6009 | ZZ | 45 | 75 | 16 | 300-500° | 90 | |
| 6010 | ZZ | 50 | 80 | 16 | 300-500° | 85 | |
| 6011 | ZZ | 55 | 90 | 18 | 300-500° | 75 | |
| 6012 | ZZ | 60 | 95 | 18 | 300-500° | 70 | |
| 6013 | ZZ | 65 | 100 | 18 | 300-500° | 63 | |
| 6014 | ZZ | 70 | 110 | 20 | 300-500° | 60 | |
| 6015 | ZZ | 75 | 115 | 20 | 300-500° | 50 | |
| 6016 | ZZ | 80 | 150 | 22 | 300-500° | 50 | |
| 6017 | ZZ | 85 | 130 | 22 | 300-500° | 50 | |
| 6018 | ZZ | 90 | 140 | 24 | 300-500° | 50 | |
| 6019 | ZZ | 95 | 145 | 24 | 300-500° | 50 | |
| 6020 | ZZ | 100 | 150 | 24 | 300-500° | 50 | |
| 6200 | ZZ | 10 | 30 | 9 | 300-500° | 282 | |
| 6201 | ZZ | 12 | 32 | 10 | 300-500° | 282 | |
| 6202 | ZZ | 15 | 35 | 11 | 300-500° | 242 | |
| 6203 | ZZ | 17 | 40 | 12 | 300-500° | 222 | |
| 6204 | ZZ | 20 | 47 | 14 | 300-500° | 200 | |
| 6205 | ZZ | 25 | 52 | 15 | 300-500° | 170 | |
| 6206 | ZZ | 30 | 62 | 16 | 300-500° | 130 | |
| 6207 | ZZ | 35 | 72 | 17 | 300-500° | 110 | |
| 6208 | ZZ | 40 | 80 | 18 | 300-500° | 100 | |
| 6209 | ZZ | 45 | 85 | 19 | 300-500° | 90 | |
| 6210 | ZZ | 50 | 90 | 20 | 300-500° | 85 | |
| 6211 | ZZ | 55 | 100 | 21 | 300-500° | 75 | |
| 6212 | ZZ | 60 | 110 | 22 | 300-500° | 70 | |
| 6213 | ZZ | 65 | 120 | 23 | 300-500° | 63 | |
| 6214 | ZZ | 70 | 125 | 24 | 300-500° | 60 | |
| 6215 | ZZ | 75 | 130 | 25 | 300-500° | 50 | |
| 6216 | ZZ | 80 | 140 | 26 | 300-500° | 50 | |
| 6217 | ZZ | 85 | 150 | 28 | 300-500° | 50 | |
| 6218 | ZZ | 90 | 160 | 30 | 300-500° | 50 | |
| 6219 | ZZ | 95 | 145 | 32 | 300-500° | 50 | |
| 6220 | ZZ | 100 | 150 | 34 | 300-500° | 50 | |
| 6300 | ZZ | 10 | 35 | 11 | 300-500° | 220 | |
| 6301 | ZZ | 12 | 37 | 12 | 300-500° | 200 | |
| 6302 | ZZ | 15 | 42 | 13 | 300-500° | 180 | |
| 6303 | ZZ | 17 | 47 | 14 | 300-500° | 60 | |
| 6304 | ZZ | 20 | 52 | 15 | 300-500° | 140 | |
| 6305 | ZZ | 25 | 62 | 17 | 300-500° | 110 | |
| 6306 | ZZ | 30 | 72 | 19 | 300-500° | 95 | |
| 6307 | ZZ | 35 | 80 | 21 | 300-500° | 85 | |
| 6308 | ZZ | 40 | 90 | 23 | 300-500° | 75 | |
| 6309 | ZZ | 45 | 100 | 25 | 300-500° | 67 | |
| 6310 | ZZ | 50 | 110 | 27 | 300-500° | 60 | |
| 6311 | ZZ | 55 | 120 | 29 | 300-500° | 53 | |
| 6312 | ZZ | 60 | 130 | 31 | 300-500° | 50 | |
| 6313 | ZZ | 65 | 140 | 33 | 300-500° | 50 | |
| 6314 | ZZ | 70 | 150 | 35 | 300-500° | 50 | |
| 6315 | ZZ | 75 | 160 | 37 | 300-500° | 50 | |
| 6316 | ZZ | 80 | 170 | 39 | 300-500° | 50 | |
| 6317 | ZZ | 85 | 180 | 41 | 300-500° | 50 | |
| 6318 | ZZ | 90 | 100 | 43 | 300-500° | 50 | |
| 6319 | ZZ | 95 | 200 | 45 | 300-500° | 50 | |
| 6320 | ZZ | 100 | 215 | 47 | 300-500° | 50 |
Applications of High Temperature Bearings
High temperature bearings are crucial in various industrial applications where operations involve high thermal conditions. These bearings are designed to maintain performance and durability under extreme heat, making them indispensable in several fields. Here are some key applications:
Steel Industry
In environments like blast furnaces and rolling mills, where temperatures can soar, high temperature bearings are used to ensure the smooth operation of conveyor systems and rolling stock.
Glass Manufacturing
The process of glass-making requires ovens and cooling beds that operate at high temperatures. Bearings in these settings must withstand the heat without failing, to keep production lines moving efficiently.
Ceramic Production
Kilns used for firing ceramics often reach very high temperatures. Bearings in these machines must endure the heat and still function reliably to maintain precise control over the manufacturing process.
Food Processing
In baking and cooking processes, where equipment like ovens and conveyors are used, high temperature bearings help in maintaining hygiene and efficiency by withstanding the oven temperatures without contaminating the food.
Energy Sector
In power plants, particularly those using turbines, bearings must cope with high temperatures while ensuring the turbines spin efficiently to generate power.
Automotive Industry
High temperature bearings are also used in components like clutches and brakes, which generate significant heat during operation.
High Temperature Bearings Material
Full ceramic bearings can endure very high temperatures, up to 1200°C, but this high temperature resistance is achievable only when the bearing uses a ceramic cage, graphite cage, or no cage at all. These bearings are made entirely of ceramic materials, making them highly resistant to heat.
Hybrid Ceramic Bearings
Hybrid ceramic bearings consist of steel inner and outer rings combined with ceramic balls. They can withstand temperatures up to 600°C when paired with a steel cage. The ceramic balls in these bearings are very hard and lightweight, which allows for high speeds and extended service life.
High Temperature Grease
When choosing grease, you need to think about a lot of things like the type and thickness of the oil, what it’s made of, how it holds up together, what’s added to it, the normal and operating temperatures, dirt in the air, load, speed, and how often it needs new grease.
Picking the right grease for very hot conditions is one of the tougher choices because there are so many details to consider.
With all the different kinds of grease available, the engineer has to be very careful and picky to find one that works well in high temperatures and is of good quality.
A good way to start picking a grease for high temperatures is to think about how hot it gets and what makes the grease break down.
Generally, the better a grease can handle high temperatures, the more it will cost per pound. For example, a synthetic grease made from fluorinated hydrocarbons can handle temperatures up to 570°F (300°C), like in space equipment, but it might cost hundreds of dollars for each pound.
The grease’s performance over time is affected by how it breaks down, mainly in three ways: how it handles mechanical stress and pressure, how it resists aging when exposed to oxygen, and how it holds up to heat. Heat and oxygen together usually wear down the grease, especially if it’s exposed to air, which is something you’d expect in most machines that use oil as a lubricant.
As grease for high temperature bearings is made up of three parts: the base oil, the thickener, and the additives, manufacturers have many choices to mix and match these parts to make the final product.
It’s important to check if your selected grease works well with other greases you are using. Greases are carefully made mixtures of chemicals, and adding something new can mess them up and lower their performance.
According to the Arrhenius rate rule, chemical reactions speed up twice as fast for every 10ºC increase in temperature, making compatibility issues worse at higher temperatures. Incompatibility can cause the grease to thin out. If this happens, you can reapply the grease to flush out the old one until the problem stops.
Another option, which is more challenging, is to take apart the equipment to remove the old grease and clean the system. The different parts of the grease—thickeners, additives, and base oils—might have issues at different temperatures and times. Before switching a major system to a new grease, thorough testing is recommended to avoid costly and time-consuming maintenance problems.
While testing is important when switching between different types of thickeners, there’s less risk of problems when switching within the same family of metal soap or complex soap-thickened products, like lithium to lithium or aluminum complex to aluminum complex.
Retainer/Cage
The retainer, also known as a cage, holds the rolling elements (like balls or rollers) in place within the bearing. In high temperature applications, retainers must be made from materials that can endure extreme heat without losing strength or deforming. Common materials include high-grade polymers, graphite, and specialized metals that have been treated to enhance their high-temperature performance.
The design of the cage also matters, as it must ensure minimal contact with rolling elements to reduce friction and wear, while also facilitating adequate lubrication.
Together, these elements ensure that high temperature bearings can operate effectively under extreme conditions, maintaining mechanical integrity and performance, which is crucial for the reliability and longevity of the machinery in which they are installed.
The Bottom Line
High temperature bearings are a crucial component for industries operating under extreme heat conditions. They ensure the smooth, efficient, and reliable operation of machinery in challenging environments, thanks to their specialized materials, advanced lubrication, and robust design.
BYWB Bearings leads the way in providing high temperature bearing solutions that are tailored to meet specific industrial needs. Whether your operations involve steel production, glass manufacturing, food processing, or energy generation, BYWB Bearings can enhance your machinery’s performance and durability. Don’t let heat compromise your equipment’s effectiveness.
Contact BYWB Bearings today via www.bywbbearing.com to discuss personalized bearing solutions that will keep your operations running smoothly, no matter the temperature.
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