6404/W64
200, 300 & 6400 Series Industrial Single Row Deep Groove Ball Bearings
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Part No.
Part No.
6404/W64
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
Soild Oil
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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6404/W64 Bearing Product Overview & Core Advantages
The 6404/W64 is a metric single row deep groove ball bearing engineered for reliable performance in radial load applications. Featuring an open design and pre-lubricated with Solid Oil, this bearing offers a robust solution with minimal maintenance requirements. Its construction from high-grade Chrome Steel ensures durability and consistent operation within a wide temperature range of -30°C to 120°C. The bearing is manufactured to ABEC 1 | ISO P0 tolerance standards, making it a cost-effective choice for general industrial applications demanding dependable performance and long service life.
6404/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6404 | Standard designation for a single row deep groove ball bearing with a 20mm bore and 72mm outside diameter. |
| W64 | Manufacturer-specific suffix indicating the bearing is pre-lubricated with Solid Oil polymer-based lubricant. |
6404/W64 Bearing Structural Features & Performance Benefits
- Robust Construction: Manufactured entirely from Chrome Steel (rings, balls, and cage), this bearing provides high strength and resistance to wear, ensuring a long operational lifespan under radial dynamic loads up to 6902 lbf.
- Solid Oil Lubrication: The integrated Solid Oil filling offers a maintenance-free solution, eliminating lubricant leakage and providing reliable performance in applications where re-lubrication is difficult or undesirable.
- Precision & Stability: Produced to ABEC 1 | ISO P0 tolerance class with a standard CN radial internal clearance, it delivers smooth and consistent running, minimizing vibration and noise.
- High-Speed Capability: With a limiting speed of 10,000 rpm, it is suitable for a wide range of high-speed applications, supported by the optimized cage design and effective Solid Oil lubrication.
6404/W64 Bearing Typical Application Areas
This versatile ball bearing is commonly found in:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Fans and Blowers
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Appliance Motors (e.g., washing machines, dryers)
