I. Rise of Strategic Emerging Market Segments: The Next Growth Pole for High-Temperature and Low-Temperature Alternating Bearings

The global bearing industry is at the threshold of a new round of technological revolution. In 2025, the revenue of the Chinese bearing industry reached 246.8 billion yuan, and the output exceeded 25.6 billion sets, both setting new historical highs. However, the growth in traditional general fields has tended to stabilize, and the real burst force comes from strategic emerging market segments. New energy vehicles, industrial robots, low-altitude economy, semiconductors, medical equipment, hydrogen energy - these high-growth sectors are constantly raising the requirements for bearings: higher load-bearing capacity, higher rotational speed, higher precision, and a wider temperature range.

 

It is expected that by 2032, the global bearing industry market size will reach 279.8 billion US dollars. The global precision bearing market in 2025 was approximately 4.369 billion US dollars, and it is expected to reach 6.531 billion US dollars in 2032, with a compound annual growth rate of 6.0%. China is the largest market globally, accounting for approximately 30% of the global share. In this round of growth, bearing products that can simultaneously meet the extreme temperature adaptability, multi-environment collaborative stability, and high precision will become the most competitive entities.

 

The technical system of NMT high-temperature and low-temperature alternating special transmission bearings - special heat-stable processing steel, heat balance simulation optimization structure, wide temperature range dedicated lubrication system, and full-spectrum sealing scheme - naturally adapt to the strict requirements of these strategic emerging market segments.

 

II. Robot Market Segment: From Industrial Arms to Humanoid Joints for Precise Transmission

Robots are one of the most explosive growth points in the bearing industry at present. In 2025, the shipment of humanoid robots in China was 14,400 units, accounting for 84.7% of the global market. Taking the Tesla humanoid robot Optimus as an example, if the shipment volume reaches 1 million units, the additional demand for bearings is expected to exceed 3 billion yuan. The wrist joints, elbow joints, knee joints, ankle joints, hip joints, and dexterous hands of humanoid robots all have potential for joint bearing applications, and the potential value of a single machine is expected to reach 5,200 yuan.

 

The industrial robot field also has strong demand. Bearings for RV reducers using high-precision radial retaining rings and harmonic reducers using cross rollers have become the core breakthrough directions for domestic substitution. Wanxiang Bearings has over 100 customers in the industrial robot field, and Changsheng Bearings has supplied sliding bearing products specifically designed for humanoid robots to Yu Shu Technology.

 

The core challenge of robot bearings lies in: high-precision transmission in compact spaces, temperature cycling caused by frequent start-stop, and the contradiction between lightweight and high load-bearing capacity. The product matrix of NNT thin-walled deep groove ball bearings, precision cross roller bearings, ultra-light and thin series flexible bearings, etc., covers all categories of demands from industrial robots to humanoid robots. Special heat-stable processing steel ensures the dimensional accuracy of bearings in frequent temperature cycling; the wide temperature range lubrication system guarantees the lubrication stability during start-stop processes.

 

III. Low-altitude Economy Market Segment: From Drones to Flying Cars - The Adherence Test for Aviation

Low-altitude economy is one of the most concerned emerging market segments since 2025. With the intensive introduction of national low-altitude economy policies, electric vertical take-off and landing aircraft (eVTOL), drone logistics, urban air transportation, etc., have rapidly moved from concept to commercialization.

 

Related bearing products of Wanxiang Qianchao have passed heavy-load drone airworthiness tests and received small-scale orders. In the future, they will continue to expand business such as flight car bearings. Self-lubricating maintenance-free joint bearings have been expanded to the low-altitude economy field. The "high-temperature-resistant, corrosion-resistant transmission system bearing" led by Luozhou has completed application verification in low-altitude economy equipment and aviation equipment fields.

 

Low-altitude aircraft face frequent temperature changes and complex cooling conditions during takeoff and cruise. From ground high temperatures to high-altitude low temperatures, from cold start to hot cruise, bearings need to maintain stable operation in the temperature range of -40°C to 80°C or even wider. NMT's thermal balance simulation optimizes the structure to precisely control the matching relationship of the thermal expansion coefficients of each component, ensuring the consistency of transmission accuracy during the flight through different altitudes and temperature layers.

 

IV. Semiconductor Equipment Sector: Pollution-Free Precision Transmission in a Vacuum Environment

The requirements for bearings in semiconductor manufacturing equipment represent the strictest standards in the field of precision manufacturing. The full-pressure air bearing, due to its advantages such as no contact, zero wear, and ultra-high rotational accuracy, is widely used in key areas such as semiconductor lithography equipment. The global market size of polyether ether ketone bearings for semiconductor equipment is approximately 810 million yuan in 2025, and is expected to approach 1.349 billion yuan in 2032. The revenue scale of sliding bearings for semiconductor equipment in 2025 is approximately 2.814 billion yuan, and is expected to approach 4.787 billion yuan in 2032.

 

JETTAGT has initiated local production of dry vacuum pump bearings for semiconductor manufacturing in China, used in the vacuum environment of processes such as lithography, etching, film deposition, and electrode formation.

 

The core challenge of semiconductor equipment bearings lies in: pollution-free operation in a vacuum environment, ultra-high cleanliness requirements, and positioning accuracy down to micrometers or even nanometers. NMT's high-purity stainless steel and ceramic material combination solution ensures extremely low gas release rate and does not contaminate wafers; solid lubrication or low-volatile lubrication solutions completely eliminate the risk of oil evaporation; ultra-precision processing and micro-gap design ensure reliable transmission under nanometer-level positioning accuracy.

 

V. Medical Device Sector: The Balance of Precision and Cleanliness in Sterilization Circuits

Medical devices are another rapidly growing high-end bearing sector. Luozhao has carried out technical research and development in areas such as the structural design of high-speed CT machine bearings, and has developed a new product with a rotational speed of 180 revolutions per minute for CT machines, which has achieved import substitution. The cooperation has expanded to multiple fields such as X-ray machine bearings, tube machine bearings, and cardiovascular machine bearings. The product matrix covers 120 revolutions per minute CT bearings, 60 revolutions per minute CT bearings, X-ray machine bearings with thin-wall design, and cardiovascular machine bearings for precision manufacturing.

 

Surgical assistance robots also extensively use gapless sliding bearings and linear bearings, as they do not require lubrication and are suitable for medical applications. In the artificial heart field, magnetic suspension bearings and fluid power bearings technologies directly affect the stability of blood pump operation.

 

The core challenge of medical device bearings lies in: repeated shock from high-temperature and high-pressure sterilization (134℃), ISO 10993 biocompatibility standards, and low-noise requirements during high-speed operation. NMT's ceramic bearing solution can withstand temperatures above 220℃ and maintains accuracy without degradation during repeated sterilization cycles; high-purity materials ensure biocompatibility; ultra-precision processing ensures low vibration and low noise operation at tens of thousands of revolutions per minute.

 

VI. Hydrogen Energy Sector: All-Weather Crossing from -253℃ to High Temperatures

The hydrogen energy industry chain covers four links: hydrogen production, hydrogen storage, hydrogen transportation, and hydrogen use. Each link has differential temperature adaptability requirements for bearings.

 

In the storage and transportation link, liquid hydrogen is cooled to -253℃, and conventional lubricants will solidify, while ordinary steel will undergo embrittlement. The air bearing products of Zhongyuan Inner Components have been applied in batch production on the air compressor of hydrogen projects. In the -180℃ liquid hydrogen environment, the modified polyether ether ketone (PEEK) composite material bearing still maintains excellent impact resistance. Ceramic bearings have broad application prospects in hydrogen compression machines and other fields.

 

In the hydrogen use link, fuel cell systems operate at temperatures typically between 60℃ and 180℃. Air compressor bearings need to operate at high temperatures while resisting hydrogen embrittlement corrosion. Aviation hydrogen engine bearings face extreme temperature challenges from extremely cold to high temperatures.

 

The core challenge of hydrogen energy bearings lies in: the triple synergy of ultra-low temperature toughness, hydrogen embrittlement resistance, and all-temperature stability. The combined solution of NMT's special engineering plastics such as PEEK and ceramic materials takes into account ultra-low-temperature toughness, hydrogen embrittlement resistance, and high-temperature stability; the solid lubrication or self-lubrication solution completely eliminates the failure risk of grease solidification in ultra-low-temperature environments; the special sealing material resistant to hydrogen permeation effectively prevents hydrogen molecules from invading the bearing interior.

 

VII. Wind Power Sector: "Heart" Protection from Land to the Deep Sea

Wind power bearings are one of the most strategically significant sectors in the new energy field. The main shaft bearings, as the core components of wind turbine generators, play a crucial role in absorbing the aerodynamic loads of the rotor and transmitting power, and are known as the "heart" of wind turbine generators. The domestic market size of sliding bearings for wind power is expected to reach 3.69 billion yuan in 2025. The wind power sliding bearing market is experiencing a rapid growth period.

 

From the first domestically produced 10-megawatt wind turbine main shaft bearing to 16-megawatt and then to products over 20 megawatts, Chinese wind turbine bearings are steadily advancing towards high-endization. The world's first 16-megawatt offshore wind turbine main shaft bearing has withstood the severe test of the strongest typhoon "Gemei" with a maximum wind force of level 17. The high-speed end bearings in the wind power gearbox have reached the P4 level of precision and the maximum rotational speed can reach 2000 r/min.

 

The core challenge of wind turbine bearings lies in: wide temperature range (from -40°C to above 80°C) cyclic impact, alternating loads, and salt fog corrosion in offshore wind power. NMT's "outer hard and inner flexible" material characteristics ensure the impact resistance under alternating loads; fluorine rubber seals effectively resist salt fog corrosion; the wide temperature range lubrication system maintains stable lubrication performance in extreme temperature differences.

 

VIII. Selection Guide: Matching the Optimal Solution for Strategic Emerging Sectors

In the robot scenario, high precision, compactness, and frequent temperature cycling tolerance should be placed at the top priority, and thin-walled precision bearings and wide temperature range lubrication systems should be adapted. In the low-altitude economic scenario, the adaptability to wide temperature ranges, lightweight, and compliance with airworthiness certification requirements should be evaluated, and heat balance optimized structures and weather-resistant seals should be adapted. In the semiconductor scenario, vacuum compatibility, pollution-free, and ultra-high precision should be the core indicators, and high-purity materials and solid lubrication solutions should be adapted. In the medical device scenario, high-temperature sterilization tolerance, biocompatibility, and low noise should be the priority considerations, and ceramic bearings and food-grade/medical-grade lubrication solutions should be adapted. In the hydrogen energy scenario, ultra-low-temperature toughness, hydrogen embrittlement resistance, and full-temperature range stability should be placed at the top priority, and PEEK/ceramic materials and solid lubrication solutions should be adapted.

 

NMT supports temperature-adaptive substrate selection, thermal stability structure optimization, wide-temperature range lubrication customization, and special structure non-standard customization, providing precise-matched products and services for each strategic emerging sector. Main specifications are always in stock, installation dimensions follow industry standards, and they can be directly replaced with imported similar products.

 

IX. Value Summary

Strategic emerging sectors are redefining the technical boundaries of bearings. From the precise joints of robots to the airworthiness tests of low-altitude economy, from the pollution-free transmission in semiconductor vacuum environments to the precision adherence to sterilization cycles in medical devices, from the ultra-low-temperature toughness, hydrogen embrittlement resistance, and full-temperature range stability in hydrogen energy to the "heart" protection in offshore wind power - every sector poses unprecedented requirements for the extreme temperature adaptability, multi-environment collaborative stability, and ultra-long life reliability of bearings.

 

NMT's high-temperature and low-temperature alternating transmission bearings rely on special heat-stabilized treated steel, heat balance simulation-optimized structure, wide-temperature range lubrication system, and full-spectrum sealing solutions to build a technical base that can cover strategic emerging sectors and be flexibly configured. Adaptation of robots (industrial/humanoid), low-altitude economy (drones/eVTOL), semiconductors (lithography/etching/vacuum pumps), medical devices (CT machines/surgical robots/artificial hearts), hydrogen energy (liquid hydrogen storage and transportation/fuel cells/hydrogen aviation), wind power (main shaft/gearboxes/yaw and pitch) and other strategic emerging application scenarios, help enterprises reduce the frequency of bearing failures, improve equipment accuracy and reliability, and ensure long-term stable operation in different fields.