6304 JEM
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6304 JEM
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
144 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
52 mm
Outside diameter tolerance
-0.013mm to 0
Width
15 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
3574 lbf
Radial static load rating
1765 lbf
Limiting speed
14 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 4.79
/ each
In Stock
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6304 JEM Bearing Product Overview & Core Advantages
The 6304 is a single row deep groove ball bearing designed for exceptional radial load capacity and high-speed operation. As a metric bearing with an open design, it offers maximum versatility for a wide range of industrial applications. Its construction from high-grade chrome steel ensures durability and reliable performance under demanding conditions. The bearing is characterized by its ABEC 1 (ISO P0) tolerance class and standard CN radial internal clearance, making it a cost-effective and highly reliable solution for general machinery where precision and long service life are paramount.
6304 JEM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 63 | Series designation indicating medium width and a robust load-carrying capacity. |
| 04 | Bore diameter code, corresponding to a 20 mm bore. |
| (No Suffix) | Indicates an open (unsealed) bearing, allowing for optimal heat dissipation and customization of lubrication. |
6304 JEM Bearing Structural Features & Performance Benefits
- High-Speed Capability: The open design and chrome steel cage facilitate efficient lubrication flow and heat dissipation, enabling a high limiting speed of 14,000 rpm.
- Radial Load Capacity: The deep groove raceway and single-row design are optimized to support significant radial dynamic loads (3574 lbf) and radial static loads (1765 lbf).
- Precision & Stability: Manufactured to ABEC 1 (ISO P0) tolerance standards, this bearing ensures consistent running accuracy and smooth operation, minimizing vibration and noise.
- Material Integrity: All critical components—rings, balls, and cage—are constructed from chrome steel, providing high hardness, wear resistance, and a long operational lifespan.
- Versatile Application: The standard CN radial internal clearance and wide temperature range (-30°C to 120°C) make it suitable for diverse operating environments.
6304 JEM Bearing Typical Application Areas
This versatile deep groove ball bearing is widely used across numerous industries, including:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
- General Industrial Machinery requiring reliable radial support
