Industrial furnaces, drying assembly lines, heat treatment equipment, high-temperature conveying machinery, ceramic sintering equipment, metallurgical annealing furnaces and food high-temperature drying equipment always operate under harsh conditions of continuous high temperature, thermal radiation, alternating temperature and high-temperature oxidation. Ordinary standard cylindrical roller bearings have poor heat resistance and are prone to fatal failures in high-temperature environments. The bearing steel undergoes annealing softening at high temperatures with sharply reduced overall rigidity, causing easy deformation and raceway collapse under stress. Conventional grease is rapidly carbonized and coked at high temperatures, completely losing lubricating function and leading to bearing dry friction locking and severe abnormal wear. Meanwhile, high-temperature thermal expansion and contraction cause unbalanced fitting gaps, resulting in operation stalling, jitter and shaft offset, failure of equipment transmission accuracy, and frequent bearing damage and shutdowns. It not only increases accessory replacement costs, but also causes frequent production line shutdowns, seriously affecting the continuous production efficiency of high-temperature industrial lines, which is a key operation and maintenance problem for high-temperature industrial equipment.

Focusing on extreme high-temperature working conditions, Japan NMT specially develops high-temperature annealing-resistant cylindrical roller bearings to solve the industry pain points of ordinary bearings such as poor high-temperature resistance, easy annealing softening, carbonization locking and short high-temperature service life. Comprehensive upgrades are carried out in five core dimensions including heat-resistant base material selection, high-temperature stabilization heat treatment, anti-carbonization lubrication system, high-temperature gap optimization and anti-oxidation protection, breaking the temperature resistance bottleneck of conventional bearings. It effectively resists high-temperature thermal radiation and alternating temperature impact, eliminates various failure problems under high-temperature working conditions, and provides all-weather continuous stable transmission guarantee for industrial high-temperature equipment.

Core Product Advantages

1. Special heat-resistant base material prevents annealing and deformation: Adopting special high-temperature resistant bearing steel for industrial use and exclusive high-temperature stabilization heat treatment technology, it greatly improves the high-temperature resistance limit of steel, effectively avoids high-temperature annealing softening, and maintains stable rigidity and hardness in high-temperature environments without deformation or raceway collapse under pressure.

2. Anti-carbonization lubrication eliminates coking and locking: Equipped with special high-temperature composite lubrication system with excellent heat resistance, no carbonization and no coking accumulation. It maintains good lubricating performance during long-term high-temperature operation, eliminating dry friction wear, bearing locking and equipment shutdown failures caused by grease failure.

3. Precisely optimized high-temperature gaps ensure smooth operation: The internal fitting gaps are precisely calibrated according to the high-temperature thermal expansion coefficient to offset high-temperature deformation errors, solving the problems of high-temperature expansion and tightness, operation stalling and abnormal jitter noise of ordinary bearings, ensuring smooth and stable transmission throughout operation.

4. Anti-oxidation protection delays high-temperature aging: The surface layer adopts high-temperature anti-oxidation strengthening treatment to effectively resist high-temperature oxidation, thermal corrosion and flue gas erosion, preventing bearing rust oxidation and surface peeling, and greatly improving the durable service life under high-temperature working conditions.

5. Resistant to alternating temperatures for complex working conditions: It withstands long-term continuous high temperature and alternating cold and hot impacts with strong temperature adaptability. No performance attenuation or structural loosening occurs due to frequent temperature changes, adapting to furnace start-stop and intermittent high-temperature production conditions.

Application Scenarios

Industrial furnace transmission equipment, drying line roller tables, heat treatment industrial furnaces, metallurgical annealing furnace equipment, ceramic high-temperature sintering equipment, food high-temperature drying machinery, chemical high-temperature reaction equipment, high-temperature conveying elevators, hot air circulating fans, high-temperature resistant automatic transmission equipment.

Precision Quality Assurance

NMT high-temperature resistant cylindrical roller bearings are manufactured in strict accordance with Japanese extreme high-temperature bearing standards. Adopting selected refined special high-temperature resistant steel, they undergo high-temperature stabilization forging, annealing-proof tempering treatment, high-temperature gap precision calibration, anti-carbonization precision assembly and anti-oxidation surface strengthening technology. All products pass continuous high-temperature durability test, alternating cold and hot fatigue test, high-temperature deformation detection and high-temperature lubrication stability test, ensuring stable structure, undiminished performance and fault-free operation under long-term high-temperature harsh working conditions, serving as exclusive supporting bearings for high-temperature industrial equipment.

Product Range

High-temperature resistant cylindrical roller bearings, special heat-resistant bearings for furnace equipment, long-life anti-carbonization bearings for drying lines, annealing-proof bearings for heat treatment equipment, alternating temperature resistant bearings, low-deformation stable high-temperature bearings, customized bearings for non-standard high-temperature working conditions.

Brand Strength

Japan NMT covers all categories of extreme working condition bearings, including heavy load, anti-corrosion, high and low temperature, high speed, dust prevention and high temperature resistance. With Japanese precision manufacturing technology, scenario-based exclusive R&D design and strict high-temperature quality control system, it accurately solves transmission failure problems of various extreme working condition equipment, providing high-durability and high-stability core transmission accessories for the global high-temperature industry, heavy industry manufacturing and special equipment industry.