Cold chain automatic assembly lines, cold storage lifting equipment, frozen food processing machinery, low-temperature sorting equipment, quick-frozen packaging machinery, cold chain logistics roller equipment and polar low-temperature operation equipment operate under special harsh working conditions of sub-zero low temperature, temperature alternation, frost condensation, high humidity and easy grease solidification. Ordinary standard cylindrical roller bearings are adapted to normal temperature conditions and prone to various frequent failures in low-temperature environments. The viscosity of conventional grease rises sharply and solidifies at low temperatures, losing fluidity and causing oil shortage dry friction, operation stalling and sharply increased starting resistance. Large temperature differences inside and outside the cold storage generate condensation frost during equipment start-stop, water vapor penetrates into the bearing, causing internal icing, roller stalling and abnormal operating noise. In low-temperature environments, ordinary steel materials have reduced toughness and increased brittleness, prone to surface microcracks and fatigue peeling under load impact. Low temperature causes abnormal shrinkage of bearing fitting clearance, leading to operation precision deviation and uneven resistance, resulting in frequent equipment start-stop failure and shutdown faults. It seriously affects the continuous processing, sorting and conveying efficiency of cold chain food. Frequent bearing replacement in low-temperature environments greatly increases operation and maintenance costs and shutdown losses of cold chain enterprises.

Focusing on the field of low-temperature cold chain transmission, Japan NMT specially develops low-temperature anti-freezing cold-resistant cylindrical roller bearings to solve the industry pain points of ordinary bearings such as easy solidification, stalling, icing, high brittleness, difficult starting and short service life at low temperatures. Through five core upgrades including special low-temperature resistant base materials, ultra-low temperature anti-freezing lubrication formula, precise low-temperature clearance calibration, anti-condensation sealing structure and low-temperature toughness strengthening treatment, it thoroughly solves the problems of lubrication failure, icing stalling, brittle crack damage and difficult starting under sub-zero working conditions. It can stably adapt to a wide range of low-temperature conditions from -40℃ to 0℃ for a long time, ensuring all-weather smooth operation of cold chain equipment.

Core Product Advantages

1. Special cold-resistant base material prevents brittle fracture at low temperature: Adopting special refined alloy steel for low temperature with optimized material metallographic structure, it greatly improves low-temperature toughness and impact resistance, eliminating the low-temperature cold brittleness of ordinary bearings, with no deformation, cracking or peeling under load in sub-zero environments.

2. Special anti-freezing lubrication avoids solidification at low temperature: Equipped with exclusive ultra-low temperature synthetic grease for cold chain equipment with stable low-temperature viscosity, no caking or solidification. It maintains good fluidity and oil film adhesion at extremely low temperatures, completely solving the problems of low-temperature dry friction and starting stalling.

3. Low-temperature clearance calibration ensures resistance-free operation: The internal clearance is specially optimized according to the low-temperature thermal shrinkage characteristics to compensate for dimensional shrinkage errors in low-temperature environments, avoiding locking stalling caused by too small clearance and jitter abnormal noise caused by excessive clearance, ensuring smooth and uniform operation at low temperatures.

4. Anti-condensation sealing eliminates icing failure: Adopting multi-layer dust-proof and condensation-proof sealing structure, it effectively blocks cold storage moisture, frost fog and condensed water from penetrating into the bearing, preventing internal icing blockage and fundamentally eliminating low-temperature icing locking and corrosion wear problems.

5. Temperature alternation resistance ensures stable performance: Adapting to the cold and hot alternation and frequent temperature difference working conditions of cold storage, the material, lubrication and sealing system can withstand repeated temperature difference impact without performance attenuation, stably adapting to continuous cold chain operation for a long time.

Application Scenarios

Cold chain automatic conveying assembly lines, low-temperature cold storage transmission equipment, frozen food processing machinery, quick-frozen sorting and packaging equipment, cold storage lifting and handling machinery, low-temperature logistics roller devices, polar low-temperature operation equipment, laboratory ultra-low temperature supporting transmission devices.

Precision Quality Assurance

NMT low-temperature cold-resistant cylindrical roller bearings are manufactured in strict accordance with Japanese low-temperature precision equipment manufacturing standards. Adopting selected low-temperature resistant high-toughness special steel, they undergo low-temperature toughness strengthening heat treatment, ultra-low temperature lubrication vacuum filling, low-temperature dimension calibration, anti-condensation sealing assembly and sub-zero extreme temperature durability test. All products pass gradient low-temperature performance test, temperature difference alternation fatigue test, low-temperature starting smoothness test and long-term anti-freezing durability test, featuring stable low-temperature performance, low starting resistance and excellent anti-freezing and anti-condensation effects, fully adapting to extreme working conditions of various cold storage, cold chain and low-temperature processing equipment.

Product Range

Low-temperature anti-freezing cylindrical roller bearings, cold storage special cold-resistant bearings, long-life bearings for cold chain equipment, ultra-low temperature anti-condensation bearings, low starting resistance bearings, temperature difference alternation fatigue-resistant bearings, customized bearings for non-standard ultra-low temperature working conditions.

Brand Strength

Japan NMT covers full-condition bearings for extreme environments such as high temperature, low temperature, heavy load, high speed, corrosion resistance, silence and dust prevention. With Japanese low-temperature precision manufacturing technology, exclusive structural optimization for low-temperature working conditions and strict extreme temperature performance detection system, it accurately solves the industry problems of bearing solidification stalling, icing failure, brittle crack damage and insufficient service life of low-temperature cold chain equipment, providing high-stability, low-temperature resistant and long-life core transmission accessories for the global cold chain logistics, frozen food processing and low-temperature intelligent equipment industry.