633, 633Z, 633ZZ, 633RS, 633-2RS Ball Bearings 3x13x5mm – Miniature Deep Groove Bearings for Industrial & Mechanical Applications

633, 633Z, 633ZZ, 633RS, 633-2RS Ball Bearings 3x13x5mm – Miniature Deep Groove Bearings for Industrial & Mechanical Applications

Complete 633 series deep groove ball bearings in compact size 3mm (ID) × 13mm (OD) × 5mm (W), ideal for light-duty and precision applications. Available in multiple configurations for reliable performance in industrial, automotive, and mechanical systems:

• 633: Open type – suitable for applications requiring re-lubrication or custom sealing
• 633Z / 633ZZ (633-2Z): Single or double metal shields – provide excellent dust protection and help retain lubricant
• 633RS / 633-2RS: Single or double rubber seals – offer superior resistance to moisture, water, and contaminants

Made from high-quality chrome steel (GCr15), all models feature precision-ground raceways for smooth, low-noise operation and extended service life under radial loads and moderate speeds. Commonly used in small electric motors, power tools, pumps, fans, conveyors, fitness equipment, and home appliances.

Most sealed versions are pre-lubricated with high-performance grease for maintenance-free operation. The 633 series supports both radial and limited axial loads, making it a versatile choice for OEMs, replacements, and repair needs.

🔧 Key Specifications:

• Models: 633, 633Z, 633ZZ (633-2Z), 633RS, 633-2RS
• Dimensions: 3 × 13 × 5 mm
• Material: Chrome Steel (GCr15)
• Precision Rating: ABEC-1 (ISO P0)
• Temperature Range: -30°C to +110°C (varies by seal and lubricant)