6303-2Z/WT
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6303-2Z/WT
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
115 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
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 120 °C
Radial dynamic load rating
3057 lbf
Radial static load rating
1495 lbf
Limiting speed
15 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
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In Stock
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6303-2Z/WT Bearing Product Overview & Core Advantages
The 6303-2Z is a single row deep groove ball bearing featuring integral shields for superior contamination protection. Engineered with ABEC 1 precision and CN radial internal clearance, this metric bearing delivers reliable performance in a wide range of industrial applications. Its optimized design provides high radial load capacity and is capable of accommodating moderate axial loads in both directions. The shielded construction makes it an ideal, maintenance-free solution for applications requiring long service life and consistent operation.
6303-2Z/WT Bearing Model Code Explained, Specifications & Naming Convention
The model number 6303-2Z is decoded as follows:
- 63: Deep Groove Ball Bearing Series
- 03: Bore Diameter Code (03 corresponds to 17mm bore)
- 2Z: Bearing is equipped with shields on both sides for non-contact sealing against contaminants.
6303-2Z/WT Bearing Structural Features & Performance Benefits
- Robust Construction: Manufactured from chrome steel for rings, balls, and cage, ensuring high strength and durability under demanding conditions.
- High Load Capacity: With a dynamic load rating of 3057 lbf and a static load rating of 1495 lbf, it handles significant radial loads effectively.
- Optimized Speed Performance: The limiting speed of 15,000 rpm is supported by the precision-ground components and stable cage design.
- Maintenance-Free Operation: The 2Z shields retain the factory-applied lubrication and protect the bearing interior from dust and debris, enabling long-term reliability without re-lubrication.
- Standardized Precision: Manufactured to ABEC 1 (ISO P0) tolerance class, providing consistent running accuracy for general industrial use.
6303-2Z/WT Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Fans and Blowers
- Material Handling Equipment
- Agricultural Machinery
- Automotive Components (e.g., alternators, pumps)
