61804/W64
618 & 619 Series Thin Section Bearings
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61804/W64 Bearing Product Overview & Core Advantages
The 61804/W64 is a metric single row deep groove ball bearing engineered for high performance in compact spaces. This bearing is characterized by its solid oil lubrication system, which provides lifelong lubrication and eliminates maintenance requirements. Its open design and precision ABEC 1 (ISO P0) tolerance ensure smooth operation and reliable performance in applications demanding high rotational accuracy. The bearing is designed primarily for radial loads and is capable of high-speed operation up to 28,000 rpm, making it an ideal component for applications where space is limited and reliability is critical.
61804/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 61804 | Standard designation for a metric single row deep groove ball bearing with 20mm bore, 32mm OD, and 7mm width. |
| /W64 | Suffix indicating the bearing is pre-lubricated with Solid Oil, a polymer matrix saturated with lubricant that provides permanent lubrication and superior contamination resistance. |
61804/W64 Bearing Structural Features & Performance Benefits
Solid Oil Lubrication System: The integrated Solid Oil replaces traditional grease, offering consistent lubrication throughout the bearing's service life. This technology prevents oil leakage, resists washout, and maintains performance in contaminated environments, ensuring maintenance-free operation.
High-Speed Capability: With a limiting speed of 28,000 rpm, this bearing is optimized for high-velocity applications. The combination of chrome steel components and optimized internal geometry minimizes friction and heat generation.
Radial Load Capacity: Engineered with a deep groove raceway design, this bearing efficiently handles radial dynamic loads up to 906 lbf and radial static loads up to 522 lbf, providing reliable performance under various operating conditions.
Precision Engineering: Manufactured to ABEC 1 (ISO P0) tolerance standards with CN radial internal clearance, this bearing delivers consistent running accuracy and smooth operation essential for precision applications.
61804/W64 Bearing Typical Application Areas
The 61804/W64 bearing is particularly suited for applications requiring compact dimensions, maintenance-free operation, and reliable performance:
- Small electric motors and miniature gearboxes
- Office automation equipment including printers and scanners
- Medical devices and dental handpieces
- Computer cooling fans and small pumps
- Precision instruments and measurement devices
