⚙️ Stainless Steel Deep Groove Ball Bearings | Corrosion Resistant · High Precision · Long Life
Stainless steel deep groove ball bearings are made of premium stainless steel materials (AISI 440C / 304 / 316), offering outstanding corrosion resistance, strength, and dimensional stability. They are suitable for humid, high-temperature, or clean environments such as motors, food machinery, medical equipment, chemical devices, and marine systems.
Through precision grinding and automated inspection, our bearings achieve lower friction, higher speeds, and extended service life — a truly high-end anti-corrosion solution.
Product Features
- Excellent corrosion resistance — ideal for humid, acid, and saline conditions
- High precision & low noise — optimized raceway curvature and ball clearance
- High-speed & high-temperature performance — suitable for motors, pumps, and fans
- Extended service life — made from high-purity stainless steel with advanced sealing
- Washable & oil-free operation — ideal for food, medical, and cleanroom environments
- Multiple sealing options — Open / ZZ (metal shield) / 2RS (rubber seal)
🧠 Technical Specifications
| Parameter | Description |
|---|---|
| Material | AISI 440C / SUS440C / 304 / 316 stainless steel |
| Size Range | Bore 3mm – Outer Diameter 100mm (customizable) |
| Precision Class | ABEC-1 / ABEC-3 / ABEC-5 / ABEC-7 |
| Noise Grade | Z1, Z2, Z3, Z4 (optional) |
| Operating Temperature | -40°C to 250°C (up to 300°C with special design) |
| Sealing Type | Open / ZZ / 2RS / RS / RZ |
| Lubrication | Oil, grease, or dry type (for clean applications) |
| Corrosion Resistance | ≥96-hour salt spray test (ASTM B117) |
| Optional Configuration | Hybrid type with Si₃N₄ ceramic balls + stainless steel rings |
Note: The above data are for reference only. Actual performance may vary depending on materials, lubrication, load, and operating conditions.
🧭 Applications
- Food & beverage machinery
- Medical & pharmaceutical equipment
- Chemical pumps and fluid systems
- Marine and ship machinery
- Electric motors and fans
- Laboratory and cleanroom equipment
🧰 Customization & Options
- OEM / ODM services available
- Custom dimensions and non-standard designs
- Waterproof / dustproof sealing optimization
- High-temperature grease or solid lubrication
- Hybrid ceramic version available (Si₃N₄ balls + SS rings)
- Laser logo engraving and customized packaging
📦 Packaging & Delivery
- Vacuum anti-rust packaging for long-term storage
- Each carton labeled with model and batch information
- Standard lead time: 7–15 days (for regular models)
- Worldwide air, sea, or express shipping options
🧾 Quality Assurance
- Certified under ISO 9001:2015 quality management system
- 100% inspection for noise, vibration, and dimension
- Precision grades up to ABEC-7
- Inspection reports and third-party certificates available on request