Deep groove ball bearings are the most widely used general-purpose rolling bearings in the industry. Composed of inner rings, outer rings, steel balls and cages, they feature simple structure, strong versatility, stable operation and high limiting speed. They mainly bear radial loads and withstand a certain degree of bidirectional axial loads, with advantages of automatic centering, low friction coefficient, low temperature rise and low noise. Widely used in industrial motors, water pumps, fans, air compressors, reducers, power tools, household appliances, automated equipment and general transmission machinery, they are core basic parts for general mechanical transmission.

Compared with roller bearings, deep groove ball bearings adopt point-contact steel ball structure with lower friction, higher speed limit, better mute performance and lower temperature rise, suitable for long-term high-speed continuous operation, while their heavy-load impact resistance is weaker. Compared with angular contact ball bearings, they have simpler structure, easier installation and stronger universality, fully meeting conventional transmission requirements of most general machinery.

General machinery, motors and water pumps operate continuously all year round, requiring extremely high mute performance, speed stability, wear resistance and low temperature rise. Ordinary deep groove ball bearings often suffer from poor steel ball precision, rough raceway grinding, unstable heat treatment and unreasonable cage clearance, resulting in increased noise, vibration, abnormal temperature rise and premature wear, causing equipment failure and rising maintenance costs.

NMT Deep Groove Ball Bearings cover full specifications including 60, 62, 63, 64, miniature and thin-wall series. Standard clearance and C3 clearance are optional. Stamped steel cages and nylon cages are available with standard, P6 and P5 precision grades. Fully compliant with international standard dimensions, they feature excellent interchangeability for civil, industrial and automated equipment.

With the upgrading of general machinery, pump and automation industries, equipment tends to be miniaturized, high-speed, silent and long-life. Traditional low-end bearings fail to meet modern industrial operation standards due to insufficient raceway precision and poor lubrication adaptability. NMT optimizes raceway curvature and surface smoothness through ultra-precision grinding, adopts multi-stage precision steel ball sorting, optimizes cage structure and internal lubrication design, and stabilizes heat treatment technology to reduce friction, suppress vibration and temperature rise, and achieve long-term silent and stable operation.

NMT deep groove ball bearings include general and high-speed precision versions. Nylon cages feature light weight, low friction, excellent mute performance and high temperature resistance for high-speed motors and precision pumps. Stamped steel cages are sturdy, cost-effective and aging-resistant for general industrial machinery and power tools. With high rotation accuracy and low runout, the bearings adapt to all-weather continuous operation.

High-purity bearing steel is adopted with refined microstructure through multi-stage forging. Inner and outer raceways undergo multiple grinding and ultra-finishing processes to reduce friction and temperature rise. All finished products pass dimensional inspection, clearance sorting, mute testing, high-speed endurance and vibration detection to ensure stable and consistent batch performance. International standard dimensions ensure complete interchangeability for convenient replacement and cost reduction.

Core Product Advantages

Ultra-precision raceway grinding ensures smooth operation, extremely low vibration and excellent mute effect.

Low friction and temperature rise with high speed limit, suitable for long-term high-speed operation of motors, pumps and fans.

Precisely sorted steel balls ensure uniform stress distribution and delay fatigue wear.

Dual cage options (nylon/steel) cover precision mute scenarios and general industrial working conditions.

Standard and C3 clearances adapt to stable normal-temperature operation and high-temperature high-speed conditions.

Stable heat treatment ensures uniform hardness, sufficient toughness and excellent anti-fatigue and anti-aging performance.

Strong universality and interchangeability with standard sizes for easy replacement.

Low noise, low vibration, low temperature rise and long service life reduce equipment failure rate and operation cost.

Typical Application Scenarios

Industrial motors, servo motors and micro motors; water pumps, industrial pump valves; centrifugal fans and cooling fans; small reducers and gearboxes; power tools; automated conveying equipment; household appliances and precision instruments; general light industrial machinery.

Quality Assurance

NMT strictly controls raw material quality through metallographic analysis, impurity screening and hardness testing. Forged blanks release residual stress and undergo precision turning, heat treatment, multi-stage grinding and raceway ultra-finishing. Steel balls are precisely graded and cages are precisely assembled. All finished bearings pass mute detection, vibration testing and high-speed endurance tests to ensure long-term silent and stable operation of electromechanical equipment.

Product Range

60, 62, 63, 64, miniature and thin-wall series; stamped steel cages, nylon cages; standard clearance, C3 clearance; precision grades: standard, P6, P5.

Brand Strength

NMT focuses on R&D and manufacturing of general precision bearings, solving common industry problems such as high noise, large vibration, fast temperature rise and short service life of motor and pump bearings. Through optimized raceway grinding, precise steel ball sorting, upgraded cage structure and stable heat treatment, NMT improves bearing mute performance, stability and durability, providing high-precision and cost-effective bearing solutions for general machinery and electromechanical equipment manufacturers.