6303
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6303
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
115 g
Tolerance class
ABEC-1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.011mm to 0
Width
14 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3057 lbf
Radial static load rating
1495 lbf
Limiting speed
15 X 1000 rpm
Lubrication
Required
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 3.97
/ each
In Stock
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6303 Bearing Product Overview & Core Advantages
The 6303 is a single row deep groove ball bearing designed for exceptional performance in a wide range of industrial applications. Engineered to primarily accommodate radial loads, this open-type bearing is characterized by its high-speed capability and reliable operation. Manufactured to ABEC-1 precision class, it offers a robust and cost-effective solution where high rotational accuracy and smooth operation are required. Its versatile design makes it a fundamental component for ensuring machinery longevity and efficiency.
6303 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 63 | Series Code | Indicates the medium-duty bearing series with specific dimensional proportions. |
| 03 | Bore Code | Signifies a 17 mm bore diameter (calculated as 03 * 5 = 15mm, plus a series constant). |
| (No Suffix) | Standard Design | Denotes an open (unsealed) construction, a stainless steel cage, and standard CN radial internal clearance. |
6303 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The deep groove raceway and high-quality chrome steel construction enable efficient handling of significant radial dynamic load ratings (3057 lbf) and radial static load ratings (1495 lbf).
- High-Speed Performance: The lightweight and durable stainless steel cage ensures stability and low friction, contributing to a high limiting speed of 15,000 rpm.
- Precision & Reliability: Conformance to ABEC-1 tolerance standards guarantees consistent dimensional accuracy and smooth running, which is critical for reducing vibration and noise.
- Broad Operating Range: With a temperature range of -30°C to 110°C, this bearing is suitable for various environmental conditions, though appropriate lubrication is required for optimal performance.
6303 Bearing Typical Application Areas
This versatile ball bearing is widely used across numerous industries due to its balanced performance characteristics. Key applications include:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Agricultural and Conveying Machinery
- Various Automotive Components
- General Material Handling Equipment
