Dimensions
| Bore diameter |
25 mm |
| Outside diameter |
52 mm |
| Width |
15 mm |
Product Overview
The 6205-2Z deep groove ball bearing represents a sophisticated fusion of reliability and engineering excellence, specifically designed for applications demanding low maintenance, high-speed operation, and extended service life. As a sealed/shielded variant of single row deep groove ball bearings, this model delivers superior performance across industrial, automotive, and precision machinery applications.
Key Technical Features
1. Advanced Sealing Technology
- Dual Protection System: Integrated ZZ metal shields (2Z designation) create a physical barrier against particulate contaminants while retaining lubrication
- Lubrication Retention: Maintains >95% of initial grease quantity over operational lifespan
- Contaminant Exclusion: IP5X-equivalent protection rating against dust and fine particles
2. Optimized Load Capacity
- Radial Load Rating: 14 kN static / 7.65 kN dynamic
- Axial Load Capacity: Supports bidirectional axial loads up to 50% of radial rating
- Stress Distribution: Proprietary raceway geometry ensures even load distribution across all ball elements
3. Precision Motion Characteristics
- Friction Coefficient: <0.0015 under standard operating conditions
- Speed Performance:
- Limiting Speed: 12,000 rpm (grease-lubricated)
- Reference Speed: 18,000 rpm (oil-lubricated)
- Vibration Control: Z3 vibration class compliance for low-noise operation
Technical Specifications
| Parameter | Value | Tolerance |
|--------------------|------------|--------------|
| Bore Diameter | 25 mm | ISO Normal |
| Outside Diameter | 52 mm | ISO Normal |
| Width | 15 mm | ISO Normal |
| Dynamic Load | 7.65 kN | ISO 281 |
| Static Load | 14 kN | ISO 76 |
| Weight | 0.137 kg | ±2% |
Operational Advantages
Maintenance Optimization
- Sealed-for-Life Design: Pre-lubricated with high-temperature lithium complex grease (NLGI Grade 2)
- Relubrication Interval: Not required under standard operating conditions
- Installation Simplicity: Non-directional mounting reduces assembly errors
Application Versatility
- Temperature Range: -30°C to +120°C (standard grease)
- Shaft Compatibility: Accommodates h6 to k6 ISO fits
- Sector Applications:
- Electric motors (IE3/IE4 efficiency class)
- Automotive components (alternators fans and blowers
- Material handling systems
- Precision medical equipment
Competitive Differentiation
The 6205-2Z incorporates laser-etched positioning markers for automated assembly alignment and features surface-hardened shields (HRC 58-62) for enhanced durability in high particulate environments. Compared to open bearing variants, our sealed design demonstrates:
- 300% longer lubrication retention
- 45% reduction in particulate ingress
- 22% improvement in L10 life expectancy
Title: 6205-2Z Sealed Deep Groove Ball Bearing | High-Speed Low-Maintenance Solution
Keywords:
- Precision sealed ball bearings
- Low friction industrial bearings
- High-speed machinery components
- Maintenance-free bearing systems
- Bidirectional load bearings
Description: Discover the 6205-2Z deep groove ball bearing with integrated seals – engineered for superior speed capability and extended service life in demanding applications. Features advanced contaminant protection, optimized load distribution, and maintenance-free operation. Request technical specifications or volume pricing today.
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