NMT Ltd.
Corporate Communications Department
NMT Angular Contact Ball Bearings High-Speed Low-Vibration Long-Service Bearings For Precision Automation Equipment
Precision automation equipment and numerical control machinery demand strict rotational accuracy. During high-speed operation, rotating shafts endure combined radial and alternating axial forces. Ordinary deep groove ball bearings have limited capacity to withstand axial loads, prone to sliding wear and rapid accuracy loss at high rotating speeds. Continuous long-hour operation is common for precision equipment, and excessive vibration directly reduces production and inspection qualification rates. Many transmission units have compact space, and products supporting matched preload installation are limited, increasing assembly difficulty for manufacturers. Besides, downtime maintenance of precision equipment brings high costs. The market requires premium angular contact ball bearings integrating high-speed performance, high precision and combinable preload function.
Japan NMT angular contact ball bearings adopt optimized raceway curve design. Stable contact angle is formed between balls and raceways to share combined forces and prevent ball slipping under high speed. All components are ultra-precisely ground to minimize rotational runout, lowering vibration and noise. Multiple matched assembly modes are available. Preload adjustment eliminates internal clearance and improves system rigidity and positioning accuracy. Rational internal lubrication channels guarantee sufficient lubrication at high speed and reduce friction heat. Various sealing options prevent fine dust from entering contact surfaces and extend service life. Standard dimensions enable convenient replacement during equipment upgrading.
Bearings can be assembled in different matching forms for high-precision spindles and oscillating mechanisms, compatible with oil-air lubrication and grease lubrication.
Core Product Advantages
Special contact angle structure bears combined radial and bidirectional axial loads simultaneously.
Ultra-precision machining delivers high rotational accuracy with low vibration and noise under high speed.
Support matched assembly with preload to improve overall rigidity of transmission systems.
Optimized raceway profile restrains ball slipping and reduces friction loss at high speed.
Multiple sealing selections adapt to clean workshops and slightly dusty production environments.
Good universality facilitates installation and replacement on various precision automation machinery.
Application Scenarios
Precision spindles of CNC equipment; joints of industrial manipulators; optical precision testing instruments; high-speed textile machinery; electronic component sorting equipment; small high-speed centrifugal devices.
Precision Quality Assurance
NMT angular contact ball bearings are manufactured under full-process control according to precision bearing standards. High-purity bearing steel and ultra-precision grinding for raceways and balls are adopted. All finished bearings pass precision inspection, high-speed endurance tests and vibration detection to ensure stable long-term high-speed precise operation. Complete product lineup and reliable interchangeability support continuous supply for automation and CNC machinery manufacturers.
Product Range
Open types and rubber sealed versions; can be arranged back-to-back, face-to-face or in tandem. Professional selection guidance based on rotating speed, load and precision requirement is offered.
Brand Strength
Japan NMT focuses on precision high-speed bearings. Solving industry challenges including accuracy degradation at high speed, abrasion under combined loads and complicated preload adjustment, NMT continuously improves raceway geometric precision and heat treatment technology, supplying high-precision, low-vibration bearing solutions suitable for high-speed conditions for precision machine tools, industrial automation and precision instrument industries.