6308 Y/C78
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6308 Y/C78
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
620 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
40 mm
Bore diameter tolerance
-0.012mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.015mm to 0
Width
23 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
915 lbf
Radial static load rating
5395 lbf
Limiting speed
7.5 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:
$ 78.02
/ each
In Stock
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6308 Y/C78 Bearing Product Overview & Core Advantages
The 6308 bearing is a high-performance single row deep groove ball bearing designed for reliable operation under substantial radial loads. Manufactured to ABEC 1 | ISO P0 tolerance standards, it delivers consistent precision for general industrial applications. Its open design allows for versatile lubrication options, while the robust chrome steel construction of rings, balls, and cage ensures durability and a long service life across a wide temperature range from -30°C to 120°C.
6308 Y/C78 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 63 | Series Code | Indicates a medium-duty, single row deep groove ball bearing series. |
| 08 | Bore Diameter Code | Signifies a standard 40 mm bore diameter (08 * 5 mm = 40 mm). |
| (No Suffix) | Standard Design | Denotes an open bearing with CN radial internal clearance, no seals, and no pre-lubrication. |
6308 Y/C78 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The continuous deep groove raceways and high-quality chrome steel components are engineered to handle significant radial dynamic loads (915 lbf) and high radial static loads (5395 lbf), ensuring stable performance.
- High-Speed Capability: With a limiting speed of 7,500 rpm, this bearing is suitable for a wide range of high-velocity applications. The one-piece chrome steel cage provides secure ball guidance and stability at these speeds.
- Precision & Rigidity: Manufactured to ABEC 1 (ISO P0) precision class, it offers tight running accuracy and contributes to the overall rigidity of the assembly, minimizing vibration and runout.
- Application Flexibility: The open seal type allows engineers to select the optimal lubrication (grease or oil) for specific operating conditions, maximizing performance and service life.
6308 Y/C78 Bearing Typical Application Areas
The 6308 is a versatile component found in numerous industrial sectors, including:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring robust radial load support.
