6304/C3D8
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6304/C3D8
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
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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6304/C3D8 Bearing Product Overview & Core Advantages
The 6304/C3 is a single row deep groove ball bearing designed for reliable performance in a wide range of industrial applications. Its primary advantage lies in its ability to support radial loads and moderate axial loads in both directions. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing offers a cost-effective solution without compromising on fundamental performance and durability. The specified C3 radial internal clearance makes it particularly suitable for applications involving thermal expansion or where fit-up conditions require a greater than normal internal play.
6304/C3D8 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 6304 | Basic Bearing Number | Denotes a metric, single row deep groove ball bearing with a 20mm bore, 52mm OD, and 15mm width. |
| C3 | Radial Internal Clearance | Specifies a greater than normal radial internal clearance. This is critical for applications with shaft misalignment, high-speed operation, or where thermal expansion is a factor. |
6304/C3D8 Bearing Structural Features & Performance Benefits
- Robust Construction: Built entirely from chrome steel for rings, balls, and cage, ensuring high strength, wear resistance, and a long operational lifespan.
- Optimized Load Capacity: The deep groove raceway and robust design enable it to handle significant radial dynamic load ratings (3574 lbf) and radial static load ratings (1765 lbf).
- High-Speed Capability: With a limiting speed of 14,000 rpm, it is engineered for demanding high-speed applications.
- Versatile Operating Range: A wide temperature range from -30°C to 120°C allows for use in various environmental conditions.
- Open Design: The open seal type allows for easy re-lubrication and is ideal for clean environments or where custom lubrication schemes are required.
6304/C3D8 Bearing Typical Application Areas
This 6304/C3 ball bearing is a versatile component found in numerous sectors, including:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- Automotive Components (Alternators, Water Pumps)
