W 604-2Z
W Series Stainless Steel Miniature Bearings
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Basic Information
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Performance
Materials
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W 604-2Z Bearing Product Overview & Core Advantages
The W 604-2Z is a metric single row deep groove ball bearing designed for precision applications requiring reliable performance. This shielded bearing offers excellent protection against contamination while maintaining smooth operation. Manufactured entirely from stainless steel, it provides superior corrosion resistance and is suitable for demanding environments. With its compact dimensions (4mm bore, 12mm OD, 4mm width) and P0 tolerance class, this bearing delivers consistent performance in radial load applications while operating within a wide temperature range of -30° to 120°C.
Model Code Detailed Analysis
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| W | Stainless Steel Construction | Corrosion resistance for harsh environments |
| 604 | Bearing size designation (4mm bore) | Compact design for space-constrained applications |
| 2Z | Double-sided steel shields | Effective contamination protection and pre-lubricated retention |
W 604-2Z Bearing Structural Features & Performance Benefits
Deep Groove Design: The optimized raceway geometry enables efficient handling of radial loads while accommodating moderate axial loads in both directions. The single row construction provides excellent rotational precision and low noise operation.
Shielded Protection: The 2Z designation indicates non-contact steel shields on both sides, effectively preventing the ingress of contaminants while minimizing friction losses. This design maintains the bearing's limiting speed of 63,000 rpm while ensuring long-term reliability.
Full Stainless Steel Construction: All components - rings, balls, and cage - are manufactured from stainless steel, providing consistent thermal expansion characteristics and excellent corrosion resistance. This makes the bearing ideal for applications requiring frequent washdowns or exposure to corrosive environments.
Pre-lubricated Design: Factory-applied grease lubrication ensures immediate operation and reduces maintenance requirements. The CN radial internal clearance provides optimal performance for most general applications.
W 604-2Z Bearing Typical Application Areas
- Medical Equipment: Surgical instruments, dental handpieces, and diagnostic devices
- Food Processing Machinery: Conveyor systems, mixers, and packaging equipment
- Precision Instruments: Optical devices, measuring equipment, and laboratory apparatus
- Small Motors: Micro motors, servo drives, and precision DC motors
- Office Automation: Printers, scanners, and copier mechanisms
- Robotics: Small joint actuators and precision positioning systems
