In modern high-rise buildings and high-end commercial complexes, the elevator traction machine, as the "heart" of the vertical transportation system, directly determines the passenger experience and safety. Elevator traction machine bearings play a core role in ensuring the smooth rotation of the main shaft and bearing complex alternating loads. With the increasing demand for comfort in living and working environments, any cabin shaking caused by insufficient bearing precision or piercing noise triggered by friction will severely degrade the passenger experience. Furthermore, as high-frequency start-stop equipment, elevators pose extremely high requirements for the long service life and maintenance-free nature of bearings. Elevator manufacturers urgently need support bearings customized for traction machines, featuring ultimate high precision, low noise, and long life.

Facing the stringent industry standards for "ultimate silence" and "zero shaking," support systems must not only possess extremely high rotational precision and rigidity but also maintain excellent anti-fatigue performance during long-term continuous operation. Due to poor internal clearance control, traditional bearings are prone to impact and shaking during start-stop and direction changes. Furthermore, ordinary cages and greases are prone to generating friction noise during long-term operation, failing to meet the silent requirements of high-end elevators. The market urgently demands a specialized elevator traction machine bearing solution that can break through the dual bottlenecks of precision and noise, achieving full life-cycle high reliability to safeguard passenger safety and comfort.

NMT Elevator Traction Machine Bearings are born to conquer the ultimate silence and smoothness challenges of vertical transportation. This series achieves disruptive breakthroughs in materials by selecting high-purity high-carbon chromium bearing steel, which is thoroughly purified of internal impurities and defects through a double-vacuum smelting process, significantly enhancing material density and dimensional stability. In terms of low-noise and high-precision design, NMT adopts precise matching preload technology, achieving zero-clearance preload by selecting high-precision spacers to ensure extremely smooth rotation of the traction machine main shaft. Meanwhile, NMT performs nano-level polishing on rolling elements and raceways, and uses lightweight engineering plastic cages and elevator-specific low-noise synthetic grease, reducing operating noise to an ultimate level below 18 decibels.

In precision manufacturing and quality control, NMT enforces safety-grade stringent standards for every component of its elevator traction machine bearings. Through high-purity material selection, precision matching assembly, and full-process quality control, the smoothness and long-life characteristics of the bearings are comprehensively improved. NMT ensures that each bearing can effectively resist fatigue stress caused by high-frequency start-stop operations, avoiding precision degradation and abnormal noise, guaranteeing high consistency and high reliability of batch products, and completely eliminating safety hazards in elevator operation.

With rich specifications, these bearings are widely used in machine-room-less elevator traction machines, high-speed passenger elevator traction machines, villa and sightseeing elevator traction machines, and heavy-duty freight elevator traction machines, satisfying the supporting needs of various high-precision, low-noise, long-life, and high-safety transmission nodes.

Core Product Advantages

Double-vacuum smelted high-carbon chromium bearing steel thoroughly removes internal impurities and defects, significantly enhancing material density and dimensional stability, eliminating micro-spalling;

Precise matching preload technology and high-precision spacer selection achieve zero-clearance preload, significantly enhancing rigidity and positioning accuracy, ensuring cabin operation without shaking;

Nano-level polishing of rolling elements and raceways significantly reduces noise caused by surface friction, fundamentally cutting friction noise;

Lightweight engineering plastic cage and uniform interval arrangement design reduce friction impact between the cage and rolling elements, further lowering operating noise;

Elevator-specific low-noise synthetic grease possesses excellent noise reduction and anti-oxidation properties, producing no odor during long-term operation and ensuring a fresh cabin environment;

Ultimate low-noise performance with operating noise below 18 decibels, far superior to the industry average, creating an extremely quiet passenger experience;

Full life-cycle long-life design significantly reduces elevator downtime maintenance frequency and O&M costs, ensuring efficient and continuous elevator operation;

Full-process safety-grade quality control and 100% performance full inspection ensure precise dimensions and zero failure risk for each bearing in traction machines.

Typical Application Scenarios

Machine-room-less and high-speed passenger elevator traction machines; Villa and sightseeing elevator traction machines; Heavy-duty freight elevator traction machines; Core transmission nodes in high-end commercial complexes and residential elevators.

Precision Quality Assurance

NMT Elevator Traction Machine Bearings use double-vacuum smelted and purified high-carbon chromium bearing steel as core raw materials, subject to strict material purity and dimensional stability inspections upon incoming. After precision turning, rings undergo special heat treatment and ultra-precision grinding, with strict control over raceway surface roughness and micro-geometric accuracy. Precision rolling elements are fully automatically sorted for size, roundness, and weight to ensure consistent load distribution and friction torque within the same bearing set. All components undergo precision matching and assembly in high-grade cleanrooms. Finished products undergo 100% rotational flexibility, friction torque, and noise testing. Unqualified products are completely rejected, ensuring the ultimate performance of batch products under extreme conditions such as elevator traction machines, providing reliable support solutions for vertical transportation equipment.

Product Series

Elevator traction machine dedicated deep groove ball bearings, elevator traction machine dedicated angular contact ball bearings, elevator traction machine dedicated cylindrical roller bearings; Selection is based on installation space, noise requirements, life requirements, and precision levels.

Brand Strength

NMT is deeply engaged in the R&D and manufacturing of elevator traction machine bearings. Targeting industry pain points in elevator scenarios—where poor internal clearance control in traditional bearings triggers shaking, friction noise interferes with the passenger experience, and material defects shorten service life—NMT continuously optimizes double-vacuum smelted purified materials, precise matching preload technology, and nano-level low-noise processes. This effectively solves fatal defects of traditional bearings in traction machines such as easy shaking, high noise, and short service life. It significantly enhances the operational smoothness and passenger comfort of elevators, helping high-end elevator manufacturing enterprises break through precision transmission bottlenecks and seize the global high-end elevator intelligent manufacturing market.