6203 Y/C78
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6203 Y/C78
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
65 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
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
No drawings available at the moment, will be launched soon
Price:
$ 37.26
/ each
In Stock
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6203 Y/C78 Bearing Product Overview & Core Advantages
The 6203 Y/C78 is a single row deep groove ball bearing designed for exceptional radial load capacity and smooth operation. Engineered with precision ABEC 1 (ISO P0) tolerances, this bearing delivers reliable performance in a wide range of industrial applications. Its open design allows for versatile lubrication options, while the standard CN radial internal clearance ensures optimal performance under normal operating conditions. Constructed entirely from high-grade chrome steel, it offers excellent durability and a long service life, making it a cost-effective solution for general machinery.
6203 Y/C78 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6203 | Standard bearing series designation, indicating a metric single row deep groove ball bearing with a 17mm bore, 40mm OD, and 12mm width. |
| Y/C78 | Manufacturer-specific suffix indicating a CN radial internal clearance group as standard. |
6203 Y/C78 Bearing Structural Features & Performance Benefits
- High Radial Load Capacity: The deep groove raceway and single row design are optimized to handle significant radial dynamic load ratings of 2147 lbf, providing robust support for rotating shafts.
- Precision Performance: Manufactured to ABEC 1 (ISO P0) tolerance class, ensuring consistent running accuracy and reduced vibration for smooth operation.
- Versatile Speed Capability: With a limiting speed of 17,000 rpm, it is suitable for a broad spectrum of high-speed applications.
- Robust Construction: All components—rings, balls, and cage—are made from chrome steel, offering high hardness, wear resistance, and dimensional stability.
- Flexible Lubrication: The open seal type allows for the application of various greases or oils, enabling customization based on specific operational temperature ranges (-30°C to 120°C).
6203 Y/C78 Bearing Typical Application Areas
This versatile ball bearing is commonly found in:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Fans
- Material Handling Equipment
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
