I. The "Invisible Joints" of the New Economy: Bearings Are Working in Places You Never Expected

When people talk about bearings, their attention often focuses on wind power, automobiles, and aerospace. However, in those places you encounter every day but may not notice, bearings are also working silently - in data centers' fans, conveyor belts in cold storage warehouses, the discharge mechanisms of vending machines, and the rotor motors of drones.

 

The bearings in these new economic scenarios are experiencing rapid expansion in scale. The global market for low-temperature bearings is expected to reach approximately 657 million US dollars by 2025. In the broader fields of temperature control and transmission, the market size has already exceeded 10 billion US dollars.

 

These scenarios may seem mundane, but they impose no less demanding requirements on bearings than those in the industrial sector. They all face a core challenge: temperature fluctuations. The cooling systems in data centers need to operate at temperatures ranging from -29°C to 55°C; cold storage warehouses need to maintain equipment stability at -25°C to -30°C; outdoor vending machines are exposed to intense heat in summer and severe cold in winter; drones take off from hot ground and cruise at low temperatures in the air, with each flight being a temperature difference crossing. Temperature fluctuations are not the exclusive domain of extreme conditions but are a daily occurrence in new economic scenarios.

 

II. Data Centers: The "Cooling Power" Behind AI Computing Capacity

The explosive growth of AI models is pushing the cooling pressure of data centers to unprecedented heights. In 2025, China's data center cooling technology will achieve a concentrated breakthrough - magnetic suspension bearing water chillers have become the industry focus.

 

Magnetic suspension bearing water chillers are redefining data center cooling. Inveyent integrates magnetic suspension bearings with fluorine pump systems to provide efficient cooling solutions for AI computing centers of different scales. Johnson Controls launched the YORK YVAM air-cooled magnetic bearing water chiller, which can operate at temperatures ranging from -29°C to +55°C. Trane, designed specifically for the Asia-Pacific market, has the HSAG magnetic suspension centrifugal water chiller, which can operate reliably at outdoor temperatures as high as 52°C. Daikin has launched the industry's first large-capacity water chiller using magnetic suspension bearing technology, with cooling capacity ranging from 2,000 to 3,000 tons.

 

The core requirements for bearings in data center cooling can be summarized in three key words: wide temperature range, long lifespan, and maintenance-free. The water chillers operate continuously throughout the year, and the bearings need to maintain stable performance within the -29°C to 55°C wide temperature range. Once a bearing fails, the temperature control of the entire data center may lose control. NMT's special heat-stabilizing treated steel ensures the stability of the bearing's size within the wide temperature range; the wide temperature range lubrication system maintains stable lubrication performance throughout the annual temperature differences; the optimized sealing structure effectively prevents cooling media from invading.

 

III. Cold Chain Logistics: "Temperature Adaptive Joints" in the -25°C Extreme Cold

Cold chain logistics is another underestimated bearing sector. From fresh food e-commerce to pharmaceutical cold chain, from frozen food to vaccine transportation, every link in the cold chain logistics relies on the stable operation of equipment - and bearings are the most direct core components that withstand the test of low temperatures.

 

Cold storage and cold storage warehouses are the basic foundation of cold chain logistics. Deli Intelligent Warehouse independently developed the four-way shuttle robot stacker supports stable operation in cold storage environments at -25°C. Heli released the low-temperature cold storage AGV that can operate stably at -30°C. These intelligent devices that shuttle in zero-degree environments require the bearings in the walking wheels, lifting mechanisms, and fork transmission systems to remain flexible and operate in the extreme cold and frequent start-stop conditions. Ordinary bearings freeze their lubricating grease below -25°C and become brittle, easily getting stuck.

 

Frozen food vending machines are the intersection of new retail and cold chain. It is estimated that from 2025 to 2030, the market size of China's frozen food vending machines will increase from 3.5 billion yuan to 12 billion yuan. Huaxin Technology's 9th-generation automatic ice cream vending machine adopts dynamic cooling capacity adjustment technology to ensure a constant temperature of -22℃ for storage. These outdoor vending machines are exposed to intense heat in summer and severe cold in winter. Their refrigeration compressor bearings and discharge mechanism bearings need to operate stably within the wide temperature range of -22℃ to 50℃. igus' drylin linear guides and bearing housings are specifically designed for low-temperature environments of -22℃, ensuring precise discharge.

 

NMT's technical adaptation for cold chain scenarios covers multiple dimensions: lubricating grease in a wide temperature range does not solidify at -30℃, ensuring flexible operation during cold start; special heat-stable treated steel does not undergo brittle transformation in extremely low temperatures; the fully sealed structure effectively prevents high humidity air and condensate from invading the cold storage, preventing bearing rust.

 

Four. Smart Warehousing and Logistics Robots: The "Iron Arm Army"穿梭ing in temperature variations

Smart warehousing is one of the most dynamic growth points in the logistics industry. AGVs， AMRs， stackers， and four-way shuttle vehicles - these intelligent devices shuttle through warehouses day and night， and their bearings endure continuous tests under frequent start-stop and temperature changes.

 

Cold chain AGVs and cold storage robots are a concentrated manifestation of temperature variation challenges. AGVs enter the -25℃ cold storage from the normal temperature loading area and return to the normal temperature area - each entry and exit is a severe temperature shock. Bearings experience rapid cooling from normal temperature to low temperature and rapid warming from low temperature to normal temperature. This repeated temperature cycle places extremely high requirements on the material stability and lubrication reliability of bearings. In such scenarios， the lifespan of ordinary bearings often lasts only a few weeks.

 

The temperature rise challenge in normal temperature warehousing is also not to be ignored. Smart warehouses are usually enclosed spaces with dense equipment and limited ventilation， with indoor temperatures reaching over 40℃ in summer. AGVs and stackers generate heat during continuous operation， and the bearing temperature steadily rises， combined with the environmental high temperature， easily leading to lubricant oxidation failure. Bearing overheating is one of the common failure modes of AGVs.

 

NMT's technical solution for smart warehousing scenarios： The wide temperature range lubrication system maintains stable lubrication performance across the temperature range of -30℃ to 40℃； specially heat-stable treated steel maintains dimensional stability under repeated temperature cycles； the optimized sealing structure effectively blocks dust intrusion in the storage environment.

 

Five. Service Robots： "Precise Joints" from Restaurants to Nuclear Power Plants

Service robots are moving from the laboratory to real-world scenarios. Delivery robots， guide robots， cleaning robots， security robots - they work in various environments and have increasingly higher requirements for bearing temperature resistance.

 

Service robots in restaurants and public places face tests of frequent start-stop and motor temperature rise. Delivery robots may operate for over ten hours a day， with the motor continuously generating heat， and the bearing temperature steadily rising. When the robot passes through the hot zone of an open kitchen or the cold air zone of an air conditioning outlet， the bearing undergoes rapid temperature changes.

 

Special service robots face even more severe temperature challenges. Robots performing valve maintenance tasks in a 40℃ high-temperature environment have special bearings at the joints that maintain 0.01 degree control accuracy under strong radiation. In fire rescue sites， robots need to work in extreme high-temperature environments. These scenarios require bearings not only to withstand high temperatures but also to maintain accuracy under extreme temperature variations.

 

The temperature rise problem of robot bearings is also not to be ignored. Bearings are the main heat source in robot joints. Insufficient or deteriorated lubricating grease will cause rolling friction to transform into sliding friction， with the friction coefficient increasing sharply， and the bearing temperature rising accordingly. Overheated bearings will accelerate lubricant aging， leading to a vicious cycle.

 

NMT's technical adaptation for service robot scenarios： Low-noise lubricating grease maintains stable noise reduction effect over long-term operation， suitable for quiet service scenarios； The ceramic hybrid bearing solution maintains low friction and low heat in high-temperature environments; specially treated steel undergoes thermal stability processing to maintain dimensional accuracy during repeated temperature cycles, ensuring that the positioning accuracy of the robot is not affected by temperature.

 

Six. Low-altitude Economy and Drone Delivery: Crossing the Temperature Gap from Ground to High Altitude

Low-altitude economy has become one of the most closely watched emerging sectors since 2025. Drone delivery, urban air transportation, emergency rescue - the bearings in these scenarios need to maintain reliable operation from the ground to high altitudes.

 

Logistics drones are the core carriers of low-altitude economy. By the end of 2025, Meituan drones had completed over 780,000 deliveries on 70 routes. Low-altitude aircraft face complex conditions such as high vibration, variable loads, sand and dust, and salt fog. From ground takeoff in high temperatures to cruising in low temperatures at high altitudes, each flight is a temperature crossing. Wanxiang Qianchao has completed the sample delivery of bearing for the low-altitude heavy-haul helicopter transmission system. Luozheng provided bearings for the world's largest cargo drone, Longying-8, which achieved a comprehensive improvement in fatigue life, operational accuracy, and environmental adaptability.

 

The core challenge faced by drone bearings is the contradiction between lightweight and high reliability. Drones are extremely sensitive to weight, and every gram of weight affects the flight duration. However, bearings must maintain reliable operation in the wide temperature range of -60°C to high temperatures. In extremely cold environments, the lubricating grease of ordinary bearings will harden and cause jamming. NMT's specially treated steel with thermal stability and a wide temperature range lubrication system ensure that drone bearings maintain stable performance between -60°C extreme cold and high temperatures.

 

Seven. NMT's Solution: Making New Economic Equipment "Resistant to Temperature Differences"

Data centers, cold chain logistics, smart warehousing, service robots, drone delivery - these new economic sectors seem scattered, but they share the same core requirement: Bearings must maintain long-term stable operating performance in temperature fluctuations and complex conditions.

 

The design logic of NMT's high and low temperature alternating special transmission bearings is precisely targeted at the differentiated needs of these new economic sectors:

 

For the year-round wide temperature range operation of data centers - specially treated steel ensures dimensional stability in the wide temperature range of -29°C to 55°C; the wide temperature range lubrication system maintains stable lubrication performance throughout the annual temperature difference; the optimized sealing structure effectively prevents cooling medium from invading.

 

For extremely low temperatures and high humidity in cold chain logistics - wide temperature range lubricating grease does not solidify at -30°C; specially treated steel does not undergo brittle transformation in extremely low temperatures; the fully sealed structure effectively blocks condensate water from invading.

 

For alternating cold and heat and dust in smart warehousing - the wide temperature range lubrication system maintains stability in the temperature difference range of -30°C to 40°C; specially treated steel maintains dimensional stability during repeated temperature cycles; the optimized sealing structure effectively blocks dust invasion.

 

For frequent start-stop and precision requirements of service robots - low-noise lubricating grease maintains stable noise reduction effect over the long term; the ceramic hybrid bearing solution maintains low friction and low heat in high-temperature environments; specially treated steel maintains dimensional accuracy during repeated temperature cycles.

 

For lightweight and wide temperature range in drone delivery - lightweight design and high purity materials balance weight reduction and reliability; the wide temperature range lubrication system maintains stability between -60°C and high temperatures; the optimized cage structure maintains stable guiding gap during high-speed operation.

 

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 new economic sector. Main specifications are in stock ready for installation, installation dimensions follow industry standards, and can be directly replaced with imported similar products.

 

Eight. Value Summary The focus of the bearing industry is often on heavy industry and strategic equipment, but new economic sectors such as data centers, cold chain logistics, intelligent warehousing, service robots, and unmanned aerial vehicle (UAV) delivery are also indispensable application fields for bearings. The explosion of AI computing power, the expansion of cold chain logistics, the popularization of intelligent warehousing, the penetration of service robots, and the take-off of low-altitude economy - each trend is creating new growth spaces for bearings.

 

The NMT high-temperature and low-temperature alternating special transmission bearings transfer the technical capabilities verified in extreme environments to the new economy domain. From the magnetic levitation chiller units in data centers to the -25℃ shuttle robots in cold chain warehouses, from the precise joints of service robots to the 10,000-meter cruise of UAVs, they provide reliable transmission guarantees for each device. Let every rotation withstand the test of temperature differences - whether in the -30℃ cold storage, or in the heat wave of AI computing power; whether on the delivery robot in the restaurant, or in the rotor of the UAV at 10,000 meters altitude.