6404/C3
200, 300 & 6400 Series Industrial Single Row Deep Groove Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6404/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
400 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.013mm to 0
Width
19 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
6902 lbf
Radial static load rating
3372 lbf
Limiting speed
10 X 1000 rpm
Lubrication
None
Radial internal clearance
C3
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:
$ 11.8
/ each
In Stock
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6404/C3 Bearing Product Overview & Core Advantages
The 6404/C3 is a single row deep groove ball bearing designed for robust performance in a wide range of industrial applications. Engineered to primarily support radial loads, this open-type bearing is characterized by its high precision ABEC 1 | ISO P0 tolerance class, ensuring reliable and consistent operation. A key feature is its specified C3 radial internal clearance, which makes it particularly suitable for applications involving thermal expansion, heavy loads, or where interference fits are used, providing enhanced operational stability and longevity.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6404 | Standard designation for a single row deep groove ball bearing with a 20mm bore, 72mm OD, and 19mm width. |
| /C3 | Indicates a greater than normal radial internal clearance. This is critical for applications with high thermal gradients or heavy load conditions. |
| (No Seal Suffix) | The bearing is Open, allowing for versatile re-lubrication and custom sealing solutions but requiring a clean operating environment. |
6404/C3 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: Constructed entirely from chrome steel for rings, balls, and cage, this bearing delivers a high radial dynamic load rating of 6902 lbf and a static load rating of 3372 lbf, ensuring durability under significant stress.
- Versatile Internal Clearance: The C3 clearance is a defining performance feature. It accommodates shaft expansion and misalignment, preventing premature failure due to excessive preload in demanding applications.
- High-Speed Capability: With a limiting speed of 10,000 rpm, the precision-ground components and robust cage design enable stable operation at high rotational velocities.
- Application Flexibility: The open design and lack of pre-applied lubrication provide maximum flexibility, allowing engineers to select the optimal grease or oil for specific temperature (from -30°C to 120°C) and performance requirements.
6404/C3 Bearing Typical Application Areas
This 6404/C3 bearing is ideally suited for a multitude of industrial sectors and machinery, including:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Agricultural Machinery
- Material Handling Conveyors
- Pumps and Fans
