Specialized in High-Temp Bearings Up to 1400℃
Letun high-temp bearings, with excellent high-temp performance, low thermal expansion and high stability, are ideal for high-temp applications in metallurgy, chemical and glass industries.
High-Temperature Bearing
Rangyun High-Temperature Bearings use special materials and heat treatment processes to maintain stable operation in extreme high-temperature environments. According to different temperature resistance levels, our high-temperature bearings are divided into multiple series: ET class (200°C), DT class (300°C), IT class (400°C), WT class (500°C), CT class (600°C), QT class (700°C), BT class (800°C), and C class (800°C~1400°C).
| Product Code | Temperature Resistance Grade | Inner Diameter(mm) | Outer Diameter(mm) | Width(mm) | Maximum Operating Temperature |
|---|---|---|---|---|---|
| RANUR-ET | ETClass | 10-100 | 30-150 | 9-25 | 200℃ |
| RANUR-DT | DTClass | 10-120 | 30-180 | 9-28 | 300℃ |
| RANUR-IT | ITClass | 15-120 | 35-200 | 11-33 | 400℃ |
| RANUR-WT | WTClass | 20-150 | 40-220 | 12-40 | 500℃ |
| RANUR-CT | CTClass | 25-180 | 47-250 | 12-45 | 600℃ |
High-Temperature Bearing Performance Parameters
Rangyun High-Temperature Bearings use special alloy materials, ceramic materials, and high-temperature lubrication technology, featuring excellent high-temperature stability, low thermal expansion coefficient, and corrosion resistance, enabling long-term stable operation in extreme environments.
| High-Temperature Performance Indicators | Parameter Value |
|---|---|
| Maximum Operating Temperature | 200℃~1400℃(8 temperature grades) |
| Thermal Expansion Coefficient | 8.5-12×10⁻⁶/°C(Low Thermal Deformation) |
| High-Temperature Hardness | HRC 45-60(Maintains High Hardness at High Temperatures) |
| High-Temperature Strength Retention Rate | (Maintains 85% Strength at 600°C) |
| High-Temperature Creep Rate | Extremely Low, 3-5 Times Better Than Standard Bearings |
| Thermal Shock Stability | ΔT=300-500°C |
| High-Temperature Lubrication Performance | Uses Special High-Temperature Grease or Solid Lubrication |
| High-Temperature Service Life | 3-8 Times Longer Than Standard Bearings |
| Material Characteristics | Parameter Value |
|---|---|
| Ring Material | High-Temperature Bearing Steel/Stainless Steel/Special Alloy |
| Rolling Element Material | High-Temperature Steel/Ceramic/Special Alloy |
| Cage Material | Special Brass/Stainless Steel/High-Temperature Polymer |
| Seal Material | Fluororubber/Metal Non-Contact Seal |
| Heat Treatment Process | Special High-Temperature Heat Treatment |
| Surface Treatment | High-Temperature Anti-Oxidation Treatment |
| Lubrication Method | High-Temperature Grease/Solid Lubrication/Oil Mist Lubrication |
| Precision Grade | P0-P5, Customizable |
| Comparison Between High-Temperature Bearings and Conventional Bearings
Due to their special materials and structural design, high-temperature bearings can maintain stable operation in high-temperature environments, solving problems like lubrication failure and material softening in conventional bearings under high temperatures.
| Performance Indicators | Rangyun High-Temperature Bearings | Conventional Bearings |
|---|---|---|
| Maximum Operating Temperature | 200℃-1400℃ | Approximately 120°C-150°C |
| High-Temperature Hardness Retention | Small Hardness Decrease at High Temperatures | Significant Hardness Decrease at High Temperatures |
| High-Temperature Lubrication Performance | Uses Special High-Temperature Lubrication | Conventional Grease Prone to Failure |
| Large Thermal Deformation | Low Thermal Expansion Coefficient, Small Deformation | Large Thermal Deformation |
| High-Temperature Service Life | 3-8 Times Longer Than Conventional Bearings | Short |
| High-Temperature Oxidation | Special Anti-Oxidation Treatment | Prone to Oxidation |
Our Advantages
Choose Rangyun High-Temperature Bearings to Solve Your High-Temperature Bearing Application Challenges
Professional High-Temperature Bearing R&D Team
We have over 20 high-temperature material experts and bearing engineers dedicated to the R&D and innovation of high-temperature bearing technology, with more than 10 related patents.
Advanced High-Temperature Testing Equipment
Equipped with multiple high-temperature testing devices with a maximum testing temperature of 1500°C, ensuring each batch of high-temperature bearings undergoes rigorous performance testing.
Full Range of High-Temperature Bearing Products
Offering a full range of high-temperature bearings from 200°C to 1400°C, including deep groove ball bearings, angular contact bearings, cylindrical roller bearings, and more.
Customized High-Temperature Solutions
Providing one-stop customized services from material selection, structural design to lubrication solutions based on customers' specific high-temperature environment needs.
High-Temperature Bearing Application Cases
Rangyun High-Temperature Bearings have been successfully applied in high-temperature equipment across multiple industries.
Metallurgical Industry Rolling Mill Case
Provided RANUR-CT series 600°C high-temperature bearings for a large steel company's rolling mill production line, solving the problems of short lifespan and frequent maintenance of conventional bearings in high-temperature rolling environments, extending bearing service life by over 5 times.
Glass Industry Furnace Case
Provided RANUR-WT series 500°C high-temperature bearings for a glass manufacturer's furnace conveying system, ensuring stable operation in high-temperature corrosive environments, reducing equipment downtime, and improving production efficiency.
Chemical Industry Reactor Case
Provided RANUR-IT series 400°C high-temperature bearings for a chemical company's high-temperature reactor stirring system, solving the problem of bearings being prone to damage in highly corrosive media, significantly reducing maintenance costs.
Cement Industry Rotary Kiln Case
Provided RANUR-C series 1400°C high-temperature bearings for a cement plant's rotary kiln, ensuring stable operation in extreme high-temperature environments and guaranteeing continuous stable production of the rotary kiln.
Power Industry Boiler Case
Provided RANUR-DT series 300°C high-temperature bearings for a power plant's boiler auxiliary system, performing excellently in high-temperature, high-humidity environments, significantly extending equipment maintenance intervals.
Ceramic Industry Kiln Case
Provided RANUR-BT series 800°C high-temperature bearings for a ceramic company's kiln transmission system, solving the problem of conventional bearings failing quickly in ceramic sintering high-temperature environments.