S604, S604Z, S604ZZ, S604RS, S604-2RS Stainless Steel Deep Groove Ball Bearings 4x12x4mm – Corrosion-Resistant Mini Bearings for Medical Equipment, Food Processing, Marine Applications & Small Motors

S604, S604Z, S604ZZ, S604RS, S604-2RS Stainless Steel Deep Groove Ball Bearings 4x12x4mm – Corrosion-Resistant Mini Bearings for Medical Equipment, Food Processing, Marine Applications & Small Motors

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The Quick Details

The S604 series stainless steel deep groove ball bearings (4 mm × 12 mm × 4 mm) are engineered for high corrosion resistance, hygiene, and long service life in demanding environments. Made from AISI 440C or SUS440C stainless steel, they resist rust, chemicals, saltwater, and high-temperature washdowns—ideal for medical devices, food & beverage machinery, marine hardware, laboratory instruments, and miniature electric motors.

Available in multiple sealing options to match your operating conditions:

S604: Open type – low friction, suitable for clean or oil-lubricated systems
S604Z / S604ZZ: Single or double metal shields – reduce dust ingress while retaining factory grease
S604RS / S604-2RS: Single or double rubber seals – offer superior protection against moisture, steam, and fine contaminants

These precision bearings handle both radial and light axial loads, operate quietly at high speeds (up to ~53,000 RPM with grease), and require minimal maintenance.

🔧 Key Specifications:

Models: S604, S604Z, S604ZZ, S604RS, S604-2RS
Dimensions: 4 × 12 × 4 mm
Material: Stainless Steel (440C) – non-magnetic, FDA-compliant options available
Dynamic Load Rating: ~970 N
Static Load Rating: ~360 N

Each bearing is precision-ground, pre-lubricated with high-quality grease, and packaged in anti-corrosion wrapping.

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