🔧 Technical Specifications
📐 Basic Dimensions:
Inner Diameter (d): 25 mm
Outer Diameter (D): 52 mm
Width (B): 15 mm

📚 References:
NSK Product Catalog
FSK Bearings

⚙️ Structure & Materials:
Design Type: Single-row deep groove ball bearing (DDU sealed)
Applicable Systems: Suitable for small motors and transmission systems
Material: High carbon chromium steel (GCr15)
Cage Material: Pressed steel
Precision Grade: ISO ABEC 3 (customizable)
Clearance: C3 (suitable for high-speed applications)

🔩 Application Scope:
Used in electric motors, small gearboxes, industrial fans, home appliances, and agricultural equipment. Common in general machinery and automotive auxiliaries.

🧠 Expert Comment:
NSK 6205DDU is a cost-effective, sealed deep groove ball bearing known for its reliable dust and grease protection. With low noise and low friction, it ensures long service life and smooth rotation, making it ideal for continuous-use environments.