6303-2Z/C3WT
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6303-2Z/C3WT Bearing Product Overview & Core Advantages
The 6303-2Z/C3WT is a metric single row deep groove ball bearing designed for reliable performance in demanding applications. This shielded bearing excels at handling radial loads and offers a robust solution where space is limited. Its key advantages include a generous C3 radial internal clearance for thermal expansion in high-speed or high-temperature environments, and integrated shields (2Z) that protect against contamination, enhancing operational longevity. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides consistent, high-quality performance for general industrial use.
Model Code Breakdown
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| 63 | Series designation for medium duty, single row deep groove ball bearings. | Standardized dimensions and reliable performance. |
| 03 | Bore diameter code (17 mm). | Precise shaft fit. |
| -2Z | Shields on both sides. | Effective protection against solid contaminants, low maintenance. |
| /C3 | Radial internal clearance greater than Normal (CN). | Accommodates thermal expansion, suitable for high-speed applications. |
| WT | No lubricant (Without Treatment). | Allows for application-specific lubrication. |
6303-2Z/C3WT Bearing Structural Features & Performance Benefits
Constructed entirely from chrome steel for rings, balls, and cage, this bearing ensures high strength and durability. The single row deep groove geometry is optimized for handling significant radial dynamic load ratings (3057 lbf). The presence of shields on both sides (2Z) provides a critical barrier against dust and debris, significantly reducing the risk of premature failure and promoting a long service life with minimal maintenance. The specified C3 clearance is a key performance feature, preventing binding and reducing friction under operational heat, which is essential for maintaining efficiency at the limiting speed of 15,000 rpm. Its compact bearing dimensions (17x47x14 mm) make it an ideal choice for applications with strict space constraints.
6303-2Z/C3WT Bearing Typical Application Areas
- Electric Motors and Small Gearboxes
- Industrial Fans and Blowers
- Conveyor System Idler Rolls
- Agricultural Machinery
- Material Handling Equipment
- General Machinery where radial load capacity and contamination protection are key.
