6304-ZJEM
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-ZJEM Bearing Product Overview & Core Advantages
The 6304-ZJEM is a single row deep groove ball bearing designed for reliable performance in demanding applications. Engineered with shielded protection on both sides, this metric bearing offers excellent resistance to contaminant ingress while maintaining smooth operation. Its precision construction with ABEC 1 tolerance ensures consistent performance under radial loads, making it suitable for applications requiring dependable rotation and moderate speed capabilities. The bearing's optimized internal geometry provides stable operation across its specified temperature range.
6304-ZJEM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
| 6304 | Standard deep groove ball bearing series with 20mm bore, 52mm OD, 15mm width | Industry-standard dimensions for easy replacement and integration |
| Z | Single shield on one side | Basic protection against contaminants |
| J | Stamped steel cage | Cost-effective solution with good strength-to-weight ratio |
| EM | Electric motor optimized design | Enhanced performance in electric motor applications |
6304-ZJEM Bearing Structural Features & Performance Benefits
Shielded Construction: The single shield provides effective protection against dust and other particles while minimizing friction, contributing to the bearing's limiting speed of 14,000 rpm.
Optimized Load Capacity: With a radial dynamic load rating of 3,574 lbf and radial static load rating of 1,765 lbf, this bearing delivers reliable performance under substantial radial loads.
Precision Engineering: Manufactured to ABEC 1 | ISO P0 tolerance class with CN radial internal clearance, ensuring consistent operation and reduced vibration in various applications.
Material Excellence: All-steel construction using chrome steel for rings, balls, and cage provides uniform thermal expansion characteristics and excellent durability.
6304-ZJEM Bearing Typical Application Areas
- Electric Motors: Particularly suited for small to medium-sized motors where the EM optimization provides enhanced performance
- Industrial Pumps: Reliable operation in various pump types handling radial loads
- Power Tools
- Material Handling Equipment: Conveyor systems, rollers, and other machinery requiring dependable bearing performance
- Agricultural Machinery
- General Industrial Machinerybearing dimensions with basic shielding protection
