623, 623Z, 623ZZ, 623RS, 623-2RS Ball Bearings 3x10x4mm – Miniature Deep Groove Bearings for Machinery & Equipment

Send Inquiry

The Quick Details

623, 623Z, 623ZZ, 623RS, 623-2RS Ball Bearings 3x10x4mm – Miniature Deep Groove Bearings for Machinery & Equipment

Complete series of 623 deep groove ball bearings in compact size 3mm (ID) × 10mm (OD) × 4mm (W), available in multiple sealing configurations for reliable performance in light to medium-duty industrial and mechanical applications:

623: Open type – allows for re-lubrication and easy inspection

623Z / 623ZZ (623-2Z): Single or double metal shields – provide excellent dust protection and grease retention

623RS / 623-2RS: Single or double rubber seals – offer superior resistance to moisture, water, and contaminants

Constructed from high-quality chrome steel (GCr15), all models feature precision-ground raceways for smooth, quiet operation and long service life under radial loads and moderate speeds. Ideal for use in small electric motors, power tools, pumps, fans, conveyors, fitness equipment, agricultural machinery, and automotive accessories.

Most sealed versions come pre-lubricated with high-performance grease for maintenance-free operation. The 623 series supports both radial and limited axial loads, making it a versatile choice for OEMs, replacements, and repair work.

🔧 Key Specifications:

Models: 623, 623Z, 623ZZ (623-2Z), 623RS, 623-2RS

Dimensions: 3 × 10 × 4 mm

Material: Chrome Steel (GCr15)

Precision Rating: ABEC-1 (ISO P0)

Temperature Range: -30°C to +110°C (varies by seal type)

Send us a message