626-ZZ Deep Groove Ball Bearing Technical Documentation
1. Product Overview
- Model: 626-ZZ
- Type: Double Shielded Deep Groove Ball Bearing
- Precision Grade: Standard (P0)
2. Detailed Parameters
| Model | d (mm) | D (mm) | B (mm) | Cr (kN) | Cor (kN) | Speed (rpm) |
| 623-ZZ | 3 | 10 | 4 | 0.65 | 0.23 | 48,000 |
| 624-ZZ | 4 | 13 | 5 | 1.3 | 0.485 | 44,000 |
| 625-ZZ | 5 | 16 | 5 | 1.8 | 0.68 | 38,000 |
| 626-ZZ | 6 | 19 | 6 | 2.3 | 0.92 | 32,000 |
| 627-ZZ | 7 | 22 | 7 | 3.1 | 1.4 | 28,000 |
| 628-ZZ | 8 | 24 | 8 | 3.9 | 1.8 | 24,000 |
| 629-ZZ | 9 | 26 | 8 | 4.7 | 2.3 | 20,000 |
3. Performance Characteristics
- Load Capacity:
- Dynamic Load Rating (Cr): 2350 N
- Static Load Rating (Cor): 890 N
- Speed Limits:
- Grease Lubrication: Up to 35,000 RPM
- Oil Lubrication: Up to 43,000 RPM
- Tilt Tolerance: ≤8'-16'
- Friction: Low friction design, suitable for high-speed applications
4. Structural Design
- Components: Inner/outer rings, steel ball rolling elements, J-steel stamped cage
- Sealing: Effective against dust and contaminants
- Material: High-grade bearing steel for durability
5. Applications
- Industrial Machinery:
- Foundry equipment , industrial furnaces , heat treatment lines
- Pulverizers , spinning machines , industrial dryers
- Precision Instruments & Motors:
- High-speed pumps , miniature motors , small motors
- Suitable for space-constrained, high-speed rotating devices
- Other Equipment:
- Textile machinery , packaging printers , agricultural machinery

5. Key Advantages
- High-Speed Performance: Optimized for stable operation at ultra-high RPMs
- Durability: Dust shields extend lifespan in harsh environments
- Versatility: Handles combined radial/axial loads