6304-Z
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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6304-Z Bearing Product Overview & Core Advantages
The 6304-Z is a single row deep groove ball bearing designed for exceptional performance in demanding applications. This precision bearing features integral shields on both sides, offering reliable protection against contamination while retaining lubrication. Engineered with P6 tolerance class and manufactured from high-grade chrome steel, it delivers high running accuracy, excellent durability, and consistent operation under radial loads. Its compact design and pre-lubrication make it an ideal, maintenance-friendly solution for a wide range of industrial machinery.
6304-Z Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 6304 | Standard Bearing Series & Size Code | Denotes a metric series deep groove ball bearing with a 20mm bore, 52mm OD, and 15mm width. |
| -Z | Shield on One Side | Indicates the bearing is equipped with a steel shield on one side to protect against contaminants. (Note: Specification data indicates "Shielded", which typically implies shields on both sides. For definitive configuration, please confirm the exact suffix with the manufacturer). |
6304-Z Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: The single row deep groove raceway and high-quality chrome steel construction enable it to handle significant radial dynamic load ratings of 3777 lbf and radial static load ratings of 1754 lbf, ensuring reliable performance under stress.
- Enhanced Contamination Protection: The shielded design effectively prevents the ingress of solid contaminants, extending bearing service life and maintaining lubricant integrity in challenging environments.
- Precision & High-Speed Operation: Manufactured to a P6 tolerance class for superior dimensional accuracy and smooth operation. Combined with a lightweight stainless steel cage, it supports a high limiting speed of 19,000 rpm.
- Maintenance Simplification: The bearing is pre-lubricated with grease, making it ready for immediate installation and reducing the need for initial maintenance, which is ideal for sealed-for-life applications.
6304-Z Bearing Typical Application Areas
The 6304-Z is a versatile component suited for various industries and equipment requiring reliable rotary motion, including:
- Electric Motors and Small Gearboxes
- Industrial Pumps and Fans
- Material Handling Conveyors
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
