6203-2RSH/WT
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Part No.
Part No.
6203-2RSH/WT
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
65 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
40 mm
Outside diameter tolerance
-0.011mm to 0
Width
12 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
2147 lbf
Radial static load rating
1079 lbf
Limiting speed
17 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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Product Overview and Core Advantages
The 6203-2RSH/WT is a metric single row deep groove ball bearing designed for reliable performance in demanding applications. Its key advantage lies in its sealed construction (2RS), which provides robust protection against contaminants, and its W33 lubrication groove on the outer ring, facilitating re-lubrication for extended service life. Engineered with chrome steel rings and balls, it offers excellent durability and a high limiting speed, making it a versatile and dependable choice for a wide range of industrial machinery.
6203-2RSH/WT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6203 | Standard bearing series designation, indicating a medium-duty, single row deep groove ball bearing with a 17mm bore, 40mm OD, and 12mm width. |
| 2RS | Features contact seals on both sides. These seals provide superior protection against dust, dirt, and moisture compared to non-contact shields. |
| H | Indicates the bearing is supplied un-lubricated (None). This allows for application-specific grease selection. |
| W33 | Specifies an outer ring lubrication groove and three lubrication holes. This feature is critical for applications requiring periodic re-lubrication to extend operational life. |
Structural Features and Performance Benefits
- Robust Sealing for Harsh Environments: The double-sided contact seals (2RS) effectively exclude contaminants, ensuring reliable operation and protecting the bearing's internal components from premature wear.
- Extended Service Life with Re-lubrication Capability: The presence of the W33 groove and holes is a significant performance advantage, allowing for the purging of old, degraded grease and the introduction of fresh lubricant. This is essential for applications where the initial grease life is insufficient.
- High-Speed Capability: Manufactured to ABEC 1 | ISO P0 tolerance class with optimized internal geometry, this bearing is capable of achieving high limiting speeds (17,000 rpm), making it suitable for electric motors and other high-RPM equipment.
- High Load Capacity: Constructed entirely from chrome steel, the bearing offers a high radial dynamic load rating for its compact size, providing reliable support for substantial radial loads.
6203-2RSH/WT Bearing Typical Application Areas
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (e.g., conveyor rollers)
- Agricultural Machinery
- General Industrial Machinery requiring a sealed, re-lubricatable bearing solution.
