Product Specification for 623 ZZ Bearing‌
‌1. Basic Information‌
‌Model‌: 623 ZZ
‌Type‌: Deep Groove Ball Bearing with Double Metal Shields (ZZ denotes dual shields)
‌Material‌: High-carbon chromium steel (standard); stainless steel available for corrosion resistance.
‌Precision‌: Standard precision for general applications; high-precision variants (P5/P6) for critical machinery.
‌Seals‌: Dual metal shields (ZZ) prevent dust and debris ingress while retaining lubricant.
‌2. Product Parameters‌
‌Dimensions‌:
Inner Diameter (d): 3 mm
Outer Diameter (D): 10 mm
Width (B): 4 mm
‌Load Ratings‌:
Dynamic Load Rating (Cr): ~0.45 kN (varies by manufacturer)
Static Load Rating (Cor): ~0.18 kN
‌Speed Limits‌:
Grease Lubrication: Up to ~60,000 RPM (varies with load and lubrication)
Oil Lubrication: Up to ~75,000 RPM
‌Weight‌: ~1.2 grams (approximate).

‌3. Product Functions‌
‌Primary Function‌: Supports radial loads and moderate axial loads in rotating shafts.
‌Operation‌: Reduces friction between moving parts, enabling smooth rotation with minimal energy loss.
‌Durability‌: Metal shields extend service life by protecting internal components from contaminants.
‌4. Key Features‌
‌Ultra-Compact Design‌: Smallest footprint in its class, ideal for space-constrained applications.
‌Low Maintenance‌: Sealed design reduces relubrication needs.
‌High-Speed Capability‌: Optimized for ultra-high-speed rotation.
‌Material Options‌: Available in stainless steel for corrosive environments.
‌Precision Options‌: High-precision variants ensure consistent performance in sensitive equipment.
‌5. Applications‌
‌Medical Devices‌: Insulin pumps, surgical instruments, and diagnostic tools.
‌Consumer Electronics‌: Printers, scanners, optical devices, and 3D printers.
‌Industrial Machinery‌: Small motors, pumps, and gearboxes.
‌Automotive Components‌: Sensors, actuators, and auxiliary systems.
‌General Use‌: Office equipment, fitness machines, and precision instruments.

‌6. Additional Notes‌
‌Standards Compliance‌: Meets ISO 9001: 2015 for deep groove ball bearings.
‌Environmental Resistance‌: Stainless steel versions withstand moisture and chemicals.
‌Customization‌: Available with open shields (Z), single shields (RS), or contact seals (2RS) for specific needs.