NMT Ltd.
Corporate Communications Department
NMT Angular Contact Ball Bearings High-Speed Positioning Support Bearings For Precision Automation Equipment
During the operation of precision automation equipment and CNC processing machinery, rotating shafts need to bear both radial force and axial thrust with strict requirements on rotary positioning accuracy. Ordinary deep groove ball bearings have limited axial load capacity and tend to produce positioning deviation at high speed, failing to meet high-precision machining requirements. Spindles of many precision equipment run reciprocally at high speed for a long time. Tiny vibration of bearings will directly affect machining precision of workpieces. Some equipment requires preload assembly, which sets strict standards for dimensional consistency and rigidity of bearings. Poor bearing accuracy leads to defective products and mechanical jitter, increasing production costs. The market demands angular contact ball bearings with high rigidity, high precision and stable high-speed performance.
Japan NMT optimizes the internal structure of angular contact ball bearings. Reasonable contact angle parameters evenly distribute contact stress of balls to withstand combined radial and axial loads. Raceways and balls are ultra-precisely ground with tight geometric tolerance control. Back-to-back, face-to-face and tandem mounting modes are supported. Preload can improve overall rigidity and restrain vibration generated in high-speed rotation. High-purity bearing raw materials and mature heat treatment enhance anti-fatigue performance of raceways.
The bearings are compatible with grease lubrication and oil-air lubrication for high-speed working conditions. Optional dust-proof seals prevent fine dust intrusion. Dimensions comply with universal industrial standards for easy replacement of mainstream precision bearings and renovation of new and old precision automatic production lines.
Core Product Advantages
Combined load capacity: Special contact angle structure bears radial loads and single-direction axial loads simultaneously.
High precision and rigidity: Precision machining supports matched preload mounting, delivering strong axial rigidity and minor positioning error.
Excellent stability at high speed: Low friction suppresses vibration under high-speed operation and ensures continuous precision movement.
Diverse assembly options: Back-to-back, face-to-face and tandem combinations adapt to different force conditions of equipment.
Long anti-fatigue service life: Ultra-precise raceway processing reduces contact wear and delays fatigue damage.
Wide lubrication adaptability: Suitable for grease, oil-air lubrication and other schemes for medium and high-speed machinery.
Application Scenarios
CNC machine tool spindles and rotary parts of precision grinders; industrial robot joints and automatic linear modules; precision testing instruments and optical adjustment equipment; high-speed CNC engraving machines and machining centers; semiconductor automatic transmission devices; high-speed spinning components of precision textile machinery.
Precision Quality Assurance
NMT angular contact ball bearings are manufactured according to precision bearing standards with full-process closed-loop quality control. Raw material inclusion inspection is carried out. Inner and outer raceways and balls receive ultra-precision grinding. All finished products pass rotary precision tests, rigidity inspection and high-speed durability simulation. Complete specifications and high dimensional consistency support stable bulk supply for precision equipment manufacturers.
Product Range
General and high-precision high-speed angular contact ball bearings; open and dust-sealed versions available. Matched bearing sets can be supplied, and technical selection suggestions based on equipment rotating speed and loads are provided.
Brand Strength
Japan NMT devotes to R&D and production of precision high-speed bearings, solving industry problems such as high-speed vibration, insufficient positioning accuracy and premature wear under combined loads for automatic precision equipment. With ultra-precision grinding technology and contact angle simulation optimization, NMT upgrades products continuously and supplies high-precision bearing solutions for CNC machine tools, industrial automation and precision testing equipment industries.