Stainless Steel Miniature Bearings
-- Steady & Reliable Manufacturer --
Introduction to Corrosion-Resistant Precision Bearings
When small-scale precision is combined with exposure to corrosive agents like water, chemicals, or steam, standard steel bearings are inadequate. Our Stainless Steel Miniature Bearings ( <10 mm bore diameter) are crafted from high-grade AISI 440C or similar stainless steel, offering excellent corrosion resistance and hygiene. Ideal for pharmaceutical, medical, and high-tech instrumentation, these bearings deliver the required precision while ensuring long-term operational integrity in wet or chemically aggressive environments where standard chrome steel would quickly rust.
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Technical Parameters of Miniature Stainless
| Feature | Technical Requirement | NSB Advantage/Design |
|---|---|---|
| Bearing Type | Deep Groove Ball Bearings (R Series, mm and inch) | Focus on small-bore sizes, typically under 10 mm diameter. |
| Material Grade | AISI 440C Stainless Steel | Martensitic stainless steel with high hardness and superior resistance to corrosion. |
| Sealing/Shielding | Metal Shields (ZZ) or Low-Friction Rubber Seals (2RS) | Shields are common for miniature applications to minimize running torque. |
| Lubrication | Food Grade (H1) or Low-Volatility Instrument Grease | Specialized lubrication for cleanroom, medical, or food contact applications. |
| Tolerance Grade | P5 or P6 (ABEC-5/3) | Precision is maintained to ensure smooth, quiet operation in sensitive instruments. |
Precision Miniature Applications
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Medical and Dental: High-speed hand tools, diagnostic equipment, and liquid handling systems.
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Food and Beverage: Small conveyors, metering pumps, and filling equipment operating under wash-down procedures.
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Instrumentation: Flow meters, sensors, and optical encoders requiring high precision in corrosive atmospheres.
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Robotics: Small joints and end-effectors exposed to sanitizers or moisture.
Benefits of Stainless Steel Miniature Bearings
- Exceptional Corrosion Resistance:
Withstands exposure to water, steam, and mild chemical sanitizers without developing destructive rust or oxidation.
- High Cleanliness and Hygiene:
Essential for sanitary applications in the medical and food industries, compatible with H1-rated lubricants.
- Precision and Smooth Running:
Despite the small size, they maintain high precision grades, ensuring minimal vibration for sensitive instruments.
- Durability in Wash-Down:
The materials and sealing are robust enough to handle frequent high-pressure wash-down cleaning cycles.
About Us
NINGBO SANYA BEARING CO., LTD.
Ningbo Sanya Bearing Co., Ltd. is a professional China Stainless Steel Miniature Bearings Manufacturers and Custom Stainless Steel Miniature Bearings Suppliers.And it established in 1994 stands right at the prime location of the Yangtze River Delta. Specialized in the production of high-quality deep groove ball bearings and insert bearings. It has emerged as a modern company integrating product development, design, manufacturing, sales and service. It can produce bearings with an inner diameter of 3mm to 100mm and customize various non-standard Custom Series 6000 Two Contact Seals Deep Groove Ball Bearing with highly-automated equipment, stable quality, and complete testing methods ensuring the quality of its products. With the vigorous development of the foreign trade department, our business in bearing production and sales in 2018 far exceeded 20 million US dollars, and the products were sold in more than 50 countries and regions.
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