6304, 6304Z, 6304ZZ, 6304RS, 6304-2RS Ball Bearings 20x52x15mm – Deep Groove Ball Bearings for Industrial & Mechanical Equipment

6304, 6304Z, 6304ZZ, 6304RS, 6304-2RS Ball Bearings 20x52x15mm – Deep Groove Ball Bearings for Industrial & Mechanical Equipment

Complete 6304 series deep groove ball bearings in standard size 20mm (ID) × 52mm (OD) × 15mm (W), available in multiple configurations for reliable performance in medium-duty industrial, automotive, and mechanical applications:

• 6304: Open type – ideal for applications requiring re-lubrication or custom sealing
• 6304Z / 6304ZZ (6304-2Z): Single or double metal shields – provide effective protection against dust and help retain lubricant
• 6304RS / 6304-2RS: Single or double rubber seals – offer superior resistance to water, moisture, and contaminants

Made from high-quality chrome steel (GCr15), all models feature precision-ground raceways for smooth, low-noise operation and long service life under radial loads and moderate speeds. Widely used in electric motors, pumps, fans, gearboxes, compressors, conveyors, agricultural machinery, and power transmission systems.

Most sealed versions are pre-lubricated with high-performance grease for maintenance-free operation. The 6304 series supports both radial and limited axial loads, making it a versatile solution for OEMs, replacements, and repair needs.

🔧 Key Specifications:

• Models: 6304, 6304Z, 6304ZZ (6304-2Z), 6304RS, 6304-2RS
• Dimensions: 20 × 52 × 15 mm
• Material: Chrome Steel (GCr15)
• Precision Rating: ABEC-1 (ISO P0)
• Temperature Range: -30°C to +110°C (varies by seal and lubricant)