634/W64
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
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Performance
Materials
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634/W64 Bearing Product Overview & Core Advantages
The 634 is a single row deep groove ball bearing designed for exceptional performance in compact, high-speed applications. This metric bearing excels at handling primarily radial loads and offers smooth, low-friction operation. Its open design and Solid Oil lubrication provide reliable, long-term performance with minimal maintenance, making it an ideal choice for applications demanding high reliability and precision within the ABEC 1 tolerance class.
634/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 634 | Basic Model Number | Denotes a single row deep groove ball bearing with a 4 mm bore, 16 mm OD, and 5 mm width. |
| Open | Seal Type | No contact seals, enabling higher limiting speeds and suitability for applications where external sealing is provided. |
| Solid Oil | Lubrication | A polymer matrix saturated with oil, offering a long service life and protection against lubricant leakage or wash-out. |
| ABEC 1 | ISO P0 | Tolerance Class | Standard precision grade for general purpose applications, ensuring consistent bearing dimensions and reliable performance. |
634/W64 Bearing Structural Features & Performance Benefits
Optimized Deep Groove Raceway: The deep groove geometry of both inner and outer rings is engineered for efficient radial load handling and moderate axial loads in both directions.
High-Speed Chrome Steel Construction: Manufactured entirely from chrome steel, this bearing provides high hardness, wear resistance, and durability, contributing to its impressive limiting speed of 36,000 rpm.
Integrated Solid Oil Lubrication: The Solid Oil technology ensures a consistent and reliable lubricant supply across a wide temperature range (-30°C to 120°C), significantly reducing maintenance needs and the risk of lubricant failure.
Standard Internal Clearance (CN): The CN radial internal clearance is suitable for most common operating conditions, providing a balance between quiet operation and thermal expansion management.
634/W64 Bearing Typical Application Areas
The 634 bearing is widely used in applications requiring compact size, high speed, and reliable performance. Key industries and equipment include:
- Small Electric Motors: Spindle motors in IT equipment, drones, and power tools.
- Precision Instruments: Optical encoders, medical devices, and measuring equipment.
- Office Automation: Printers, scanners, and copiers.
- Small Gearboxes and Mechanisms: Robotics, RC models, and small machinery.
