A large number of general machinery equipment in textile, food and packaging industries are prone to concentricity errors caused by shaft installation offset and frame deformation under load during assembly. Ordinary bearings have no self-aligning capacity. Tiny shaft misalignment leads to uneven load on rolling elements, continuous high temperature and abnormal noise, resulting in fatigue damage within a short period. Frequent shutdown for bearing replacement severely reduces production capacity of assembly lines. Working environments of food processing and textile production are complicated with fiber debris, food dust and moisture. Open bearings are easily corroded by contaminants, causing rapid grease failure.

Most light industrial equipment pursues low operation and maintenance costs. Regular grease replenishment cannot be arranged easily, requiring maintenance-free bearings that can operate stably for a long time. Fans and conveyors run nonstop, with strict standards on operating noise and vibration. Excessive vibration shortens service life of equipment and undermines processing quality of finished products. The market demands self-aligning ball bearings with self-aligning function, low-noise stable operation and reliable sealing protection.

NMT Self-Aligning Ball Bearings adopt high-purity bearing steel processed by standardized precise heat treatment to achieve uniform hardness on rolling contact surfaces and excellent fatigue resistance. Precision grinding is applied on spherical outer ring raceways to realize sufficient aligning range and absorb installation deviation and shaft deformation during operation. Double-row balls are strictly sorted by dimension to realize balanced load distribution, smooth rotation and effective reduction of vibration and noise.

Sealed versions are equipped with wear-resistant rubber seals to prevent fiber dust and moisture from entering bearings and avoid loss and deterioration of lubricant. High-performance long-service-life grease is pre-filled before delivery to satisfy long-term maintenance-free operation. Complete standard specifications deliver outstanding interchangeability. No modification on mounting bases is needed during equipment upgrading. Open type, double-sided dust cover type and double-sided sealed type are optional to adapt dry dusty environments or humid conditions.

Core Product Advantages

Spherical outer ring structure provides powerful self-aligning function to compensate shaft misalignment and operational deformation;

Double-row ball load structure achieves balanced stress distribution and smooth rotation with low vibration and low noise;

Multiple sealing options prevent dust and moisture and resist intrusion of textile fiber and food dust;

Pre-filled long-life grease on sealed models cuts maintenance frequency and realizes maintenance-free operation;

Premium bearing steel and precision grinding technology enhance fatigue resistance for long continuous operation of light industrial equipment;

Abundant standard specifications with good interchangeability support convenient replacement for textile, packaging machinery and fans.

Typical Application Scenarios

Complete textile spinning and weaving machinery; food mixing, conveying and filling production lines; packaging machinery and horizontal & vertical conveying equipment; industrial fans and cooling blowers; small woodworking processing equipment; material conveyor belt and roller supporting mechanisms.

Quality Assurance

NMT Self-Aligning Ball Bearings implement standardized full-process quality control. Raw materials receive composition inspection. Inner rings, outer rings and balls go through precision grinding and dimension sorting. Finished products pass noise testing, self-aligning simulation experiments and sealing durability inspection. Non-compliant products with excessive vibration and defective sealing are strictly rejected. Stable and reliable bearing supporting solutions are steadily supplied to light industrial machinery manufacturers.

Product Range

Open type without seal, double-sided dust cover type, double-sided rubber sealed type; standard clearance type and increased clearance type optional. Professional selection suggestions are offered according to operating speed, dust density and humidity of working environments.

Brand Strength

NMT specializes in R&D and manufacturing of general precision bearings. Targeting industry pain points of textile, food and packaging equipment including shaft misalignment during installation, abundant on-site dust, limited maintenance conditions and strict noise control requirements, NMT continuously optimizes spherical raceway machining technology, sealing structure and lubrication system. High-performance self-aligning ball bearings are developed to help light industrial production lines cut shutdown frequency and reduce daily maintenance expenditure.