Cold chain warehousing equipment, low-temperature quick-freezing production lines, polar exploration machinery, winter outdoor heavy-duty equipment and low-temperature chemical equipment always operate under extreme sub-zero working conditions with frost and freezing condensation. Ordinary standard bearings suffer from fatal performance attenuation at low temperatures. The steel material becomes highly brittle with sharply reduced toughness, causing raceway cracking and roller breakage under slight impact loads. Conventional grease solidifies and agglomerates at low temperatures, losing lubricating performance and resulting in dry friction, stalling, increased operating resistance and abnormal shutdowns. In addition, low-temperature shrinkage causes unbalanced fitting gaps, equipment transmission jitter and precision deviation, greatly increasing the failure rate of low-temperature industrial equipment.

Focusing on the field of extreme low-temperature industry, Japan NMT specially develops low-temperature freeze-resistant and anti-brittle cylindrical roller bearings to solve the shortcomings of ordinary bearings such as poor low-temperature resistance, brittle cracking, easy stalling and short service life. Comprehensive optimizations are carried out in low-temperature material formula, low-temperature toughening heat treatment, anti-freezing sealing structure and special low-temperature lubrication, completely solving the problem of bearing failure at low temperatures. The bearings maintain excellent toughness, rigidity, low friction and smooth operation under extreme sub-zero environments, providing all-weather stable transmission guarantee for various low-temperature industrial equipment.

Core Product Advantages

1. Low-temperature anti-brittle performance prevents cracking: Made of special high-toughness bearing steel for low temperature with exclusive low-temperature toughening heat treatment technology, it greatly reduces the low-temperature brittleness of steel, maintains sufficient toughness in extreme cold environments, withstands impact loads, and avoids brittle damage of raceways and rollers.

2. Anti-freezing lubrication prevents solidification and stalling: Equipped with special low-temperature anti-coagulation lubrication system, it does not agglomerate or solidify at ultra-low temperatures with sufficient fluidity, continuously forms uniform lubricating oil film, and avoids dry friction wear and locking failure with stable operating resistance.

3. Stable clearance adaptation for low temperature: Precisely calibrates the low-temperature shrinkage coefficient and optimizes bearing fitting gaps and rolling tolerances to offset low-temperature deformation errors, eliminating low-temperature stalling and shaft offset, and ensuring equipment coaxiality and transmission accuracy at low temperatures.

4. Frost-proof sealing for moisture resistance: The upgraded anti-freezing sealing structure effectively blocks external frost, snow and condensed water intrusion, preventing internal freezing blockage and component corrosion, adapting to complex working conditions with long-term frosting and high humidity at low temperatures.

5. Long service life with stable low-temperature performance: Different from the sharp performance attenuation of ordinary bearings at low temperatures, NMT low-temperature bearings maintain stable performance without abnormal loss under heavy load, high speed and frequent start-stop conditions, greatly extending the replacement cycle of low-temperature equipment bearings and reducing operation and maintenance costs.

Application Scenarios

Cold chain conveying machinery, low-temperature quick-freezing production lines, cold storage warehousing transmission equipment, polar exploration and scientific research machinery, winter outdoor heavy-duty equipment, low-temperature chemical reaction equipment, frozen fans and water pumps, low-temperature automatic production lines, northern outdoor conveying and lifting equipment, food low-temperature processing machinery.

Precision Quality Assurance

NMT low-temperature freeze-resistant cylindrical roller bearings are manufactured in strict accordance with Japanese low-temperature precision bearing standards. Adopting selected polar-grade high-toughness freeze-resistant base materials, they undergo low-temperature stabilization forging, non-brittle heat treatment, low-temperature gap precision calibration and mirror superfinishing as well as anti-freezing sealing assembly. All products pass extreme sub-zero low-temperature durability test, low-temperature impact toughness test, low-temperature start-stop fatigue test and freeze-thaw cycle stability test, ensuring intact structure, stable performance and long-term operation under all extreme cold working conditions.

Product Range

Low-temperature high-toughness cylindrical roller bearings, special anti-freezing bearings for cold chain equipment, anti-brittle bearings for polar machinery, winter outdoor low-temperature resistant bearings, low-temperature high-speed low-resistance bearings, freeze-thaw environment stable bearings, customized non-standard bearings for low-temperature working conditions.

Brand Strength

Japan NMT focuses on the R&D and manufacturing of full-condition extreme bearings, covering full scenarios of high temperature, low temperature, corrosion, impact, high speed and heavy load. With Japanese refined precision technology and scenario-based customized design, it solves equipment failure problems of various special industries and provides reliable core transmission accessories support for the global low-temperature industry, cold chain industry and polar equipment.