In the field of industrial equipment manufacturing, the level of specialisation often determines the upper limit of product quality. Focusing on one product category, continuously refining and improving, is the way to perfect the details and achieve stable quality.

 

NMT is precisely such a company – focused on precision four-point contact ball bearings. For over a decade, NMT has been dedicated to this field, transforming technical accumulation and manufacturing experience into the reliable quality of every product.

 

The Gothic arch raceway structure is the technical core of NMT bearings – a single bearing simultaneously handles radial loads, bidirectional axial loads, and tilting moments, helping equipment achieve more compact and efficient structural designs. High-purity bearing steel undergoes precision heat treatment, delivering uniform raceway hardness and a tough core that balances wear resistance and impact resistance. Ultra-precision finishing gives raceway surfaces ideal smoothness, coordinating with precision-graded balls for smooth operation and low friction loss.

 

The reliability of quality is reflected in long-term operational performance. NMT bearings maintain stable precision and performance under continuous operation, reducing unplanned downtime and lowering maintenance costs. Sealed models feature multi-layer protective structures, adapting to outdoor, dusty, humid, and other complex environments. International standard external dimensions allow direct interchangeability with mainstream brand products, making both integration and maintenance convenient.

 

Focus makes technology more solid; quality makes trust more lasting. NMT serves every equipment manufacturer with a professional attitude and reliable products.

 

Core Product Advantages

Over a decade of focus on four-point contact ball bearings, with deep technical accumulation and mature, reliable products;

 

Gothic arch raceway design enables a single bearing to handle three-direction combined loads, with simple structure and high space efficiency;

 

High-purity bearing steel with precision heat treatment provides both raceway hardness and core toughness;

 

Superfinished raceways paired with precision-graded balls deliver low friction, low temperature rise, and smooth operation;

 

Sealed models with multi-layer protection effectively resist dust, moisture, and corrosive environments;

 

International standard external dimensions for direct interchangeability with mainstream brands, convenient for both integration and replacement;

 

Thin-section and heavy-duty series covering bore diameters from 16mm to over 650mm for extensive coverage;

 

Every bearing set undergoes dynamic testing before shipment, with reliable and verifiable quality.

 

Typical Applications

Industrial robot bases and joints – precision retention under high-frequency motion; Crane slewing mechanisms – stable rotation under heavy eccentric loads; Radar antenna turntables – reliable all-weather outdoor operation; CT scanners, linear accelerators and other medical equipment – low-noise, low-vibration precision rotation; CNC machine turntables and indexing plates – high-rigidity precision indexing; Port machinery and marine equipment – long-term service in salt-spray environments; Construction machinery and aerospace ground equipment – stable load-bearing under extreme conditions.

 

Quality Assurance

NMT quality assurance covers the entire process from raw materials to finished products. Bearing alloy steel undergoes spectral analysis, inclusion rating, and grain size testing upon incoming inspection. Controlled-temperature forging refines grain structure. Fully automatic heat treatment curve management ensures consistent hardened layer depth across batches. Raceway processing involves three stages – rough grinding, finish grinding, and ultra-precision finishing – with stable surface quality control. Steel balls undergo multi-stage grinding and precision grading for good dimensional consistency. Cages are precision-machined with accurate pocket dimensions. Assembly takes place in clean environments. Finished products pass torque, vibration, clearance, and run-in tests, with complete data archived. Rust-preventive packaging ensures flawless delivery.

 

Product Range

Thin-section series – compact and lightweight, suitable for space-constrained applications such as robots and medical equipment; Heavy-duty series – reinforced cross-section, suitable for high-load applications such as cranes, port machinery, and construction equipment; Bore diameter from 16mm to over 650mm; Speed range 1500 to 17000 r/min; Open, single-seal, double-seal; Precision grades P0, P6, P5, P4; Clearance grades C2, CN, C3, and custom options.

 

Brand Strength

NMT has been dedicated to the field of precision four-point contact ball bearings for over a decade. Products are widely used in industrial robots, construction machinery, radar communications, medical equipment, CNC machinery, and other industries. With technical strength accumulated through focused dedication and stable, reliable product quality, NMT has earned recognition from numerous customers both domestically and internationally.

 

NMT adheres to the philosophy that “focus brings expertise,” not pursuing blind expansion but concentrating efforts on product quality and process improvement. Bearings are key components of equipment operation, and NMT provides solid slewing support for industrial equipment worldwide through professional capability and reliable products.