S603, S603Z, S603ZZ, S603RS, S603-2RS Stainless Steel Deep Groove Ball Bearings 3x9x5mm – Corrosion-Resistant Mini Bearings for Medical Devices, Food Machinery, Marine Equipment & Small Motors

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S603, S603Z, S603ZZ, S603RS, S603-2RS Stainless Steel Deep Groove Ball Bearings 3x9x5mm – Corrosion-Resistant Mini Bearings for Medical Devices, Food Machinery, Marine Equipment & Small Motors

The S603 series stainless steel deep groove ball bearings (3 mm × 9 mm × 5 mm) are precision-engineered for applications demanding high corrosion resistance, hygiene, and reliability. Made from AISI 440C or SUS440C stainless steel, these miniature bearings resist rust, chemicals, and moisture—ideal for food processing, medical instruments, marine environments, laboratory equipment, and small electric motors.

Available in multiple sealing configurations:

S603: Open type – minimal friction, suitable for clean or oil-lubricated systems
S603Z / S603ZZ: Single or double metal shields – reduce dust ingress while retaining lubricant
S603RS / S603-2RS: Single or double rubber seals – provide excellent protection against water, steam, and fine contaminants

These bearings support both radial and light axial loads, operate quietly, and require little maintenance. Their compact size makes them perfect for space-constrained designs in drones, RC toys, flow meters, dental tools, and micro-gearboxes.

🔧 Key Specifications:

Models: S603, S603Z, S603ZZ, S603RS, S603-2RS
Dimensions: 3 × 9 × 5 mm
Material: Stainless Steel (440C) – non-magnetic, washdown-safe
Load Capacity: Dynamic ~207 N, Static ~136 N
Max Speed (grease): ~60,000 RPM

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