CORE PRODUCT—Deep Groove Ball Bearing
Engineered Bearing Grades
for Diverse Industrial Applications
From standard industrial operations to high-precision environments, our bearing solutions are manufactured to meet different performance and noise-level requirements.
· Standard Grade bearings provide dependable performance for agricultural machinery, conveyor systems, and industrial equipment.
· ZV2 Grade bearings offer enhanced low-noise operation for household appliances, electric motors, and ventilation systems.
· ZV3 Grade bearings are developed for precision machinery, medical devices, robotics, and high-speed applications that demand accuracy.
Manufacturing & Quality Control

1.Precision Grinding
Precision grinding utilizes advanced abrasive wheels to refine bearing surfaces, achieving tight dimensional tolerances and superior finishes that ensure our critical industrial components operate with maximum smoothness and long-term reliability.

2. VISUAL INSPECTION
Visual inspection is a vital non-destructive quality control method. It examines bearing surfaces with optical aids to detect defects like cracks or scratches, guaranteeing every product meets strict international manufacturing standards.

3. DIMENSIONAL INSPECTION
Dimensional inspection verifies a bearing’s physical features using precise tools like CMMs. This critical quality control process ensures every component strictly matches engineering design specifications for perfect fit and optimal performance.

4. profile measurement
Profile measurement evaluates the precise surface contour and cross-sectional shape of bearing components. It captures detailed geometric variations to ensure parts meet specific tolerances and roughness standards for high-precision industrial applications.

5. BEARING ASSEMBLY
Bearing assembly precisely fits inner and outer rings, rolling elements, and cages. Strict cleanliness and accuracy ensure the final bearing unit operates smoothly, delivering exceptional performance and extended service life.

6. Z&V GRADE TESTING
Z&V grade testing evaluates bearing vibration and noise levels. It classifies units into specific quality grades like Z1 and V1, ensuring they meet the strict smoothness and quietness standards for various applications.

7. Ultrasonic cleaning
Ultrasonic cleaning uses high-frequency sound waves to generate microscopic bubbles that implode. This dislodges dirt, grease, and contaminants from complex bearing surfaces, ensuring a thoroughly precise and contaminant-free clean.

8. GREASING &anti-RUST TREATMENT
Greasing and anti-rust treatment applies specialized lubricants and protective coatings to bearings. This minimizes friction, blocks moisture and oxygen, and effectively prevents corrosion to ensure long-term durability and reliable industrial performance.

9. FINAL RANDOM INSPECTION
Final Random Inspection (FRI) is the last quality check before shipment. Random sampling verifies that finished bearings meet all specifications, guaranteeing the overall batch quality is fully acceptable for delivery.

10. PACKAGING
Packaging is the final manufacturing stage, involving careful wrapping and boxing of bearings. It protects products from damage, moisture, and contamination during transit, ensuring they arrive safely at their global destination.
Business Cooperation Models




Bearing Solutions for Industrial Applications
TRUSTED BY GLOBAL CUSTOMERS
“We were looking for a reliable supplier who could support our own bearing brand with different product categories. HAICHUAN helped us manage customized packaging and supply coordination for ball bearings, roller bearings, mounted bearings, and other industrial bearing products. The flexibility of their service has made our purchasing process much easier.”
“As a distributor, we need stable quality and flexible ordering options for different market demands. HAICHUAN provides consistent product quality, responsive communication, and practical support for mixed-model orders, which helps us maintain a reliable supply channel.”
“We had specific requirements regarding bearing dimensions, materials, and structure. HAICHUAN supported us by reviewing our drawings and evaluating possible solutions. Their engineering communication helped us find a suitable bearing option without unnecessary redesign of our equipment.”
“Our application required a special bearing solution with additional material integration. HAICHUAN’s team communicated with us throughout the development process and helped coordinate the manufacturing details. Their flexibility allowed us to achieve a product that matched our application requirements.”


























