6905zz
6900 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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6905zz Bearing Product Overview & Core Advantages
The 6905ZZ is a metric single row deep groove ball bearing designed for reliable performance in demanding applications. Featuring shielded construction (ZZ) on both sides, this bearing offers effective protection against contaminant ingress while maintaining low friction operation. Engineered with precision ABEC-1 tolerances and manufactured from high-quality chrome steel components, it delivers consistent performance and long service life. The compact design with 9mm width makes it ideal for space-constrained applications requiring high radial load capacity and reliable operation.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning | Performance Benefit |
| 6905 | Basic bearing designation (25mm bore, 42mm OD) | Standard dimension compatibility |
| ZZ | Double shielded construction | Enhanced contamination protection, reduced maintenance |
6905zz Bearing Structural Features & Performance Benefits
Deep Groove Geometry: The optimized raceway design enables the bearing to handle both radial loads and moderate axial loads in both directions, providing versatile load capacity in compact dimensions.
Shielded Protection: The dual steel shields (ZZ) effectively retain lubrication while excluding contaminants, extending bearing life and reducing maintenance requirements in challenging environments.
Precision Engineering: Manufactured to ABEC-1 tolerance class with C0 radial clearance (0.006mm to 0.020mm), ensuring consistent performance, smooth operation, and reduced vibration levels.
High-Speed Capability: With a limiting speed of 19,000 rpm and stainless steel cage construction, the bearing maintains stability and reliability at high rotational speeds.
Material Excellence: Chrome steel rings and balls combined with stainless steel cage provide excellent wear resistance, corrosion protection, and dimensional stability across the operating temperature range of -30°C to 110°C.
6905zz Bearing Typical Application Areas
- Electric Motors: Small to medium-sized motors requiring reliable radial bearing support
- Power Tools: Drills, grinders, and other handheld equipment needing compact, high-speed bearings
- Industrial Gearboxes: Compact transmission systems where space optimization is critical
- Automotive Components: Alternators, pumps, and auxiliary drives requiring shielded protection
- Medical Equipment: Small medical devices and instruments demanding precision and reliability
- Office Automation: Printers, scanners, and copiers utilizing compact bearing solutions
