692x 2rs
600 Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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692x 2rs Bearing Product Overview & Core Advantages
The 692x 2rs is a miniature deep groove ball bearing designed for applications demanding compact size and reliable performance. As a single row, sealed metric bearing, it excels in handling radial loads efficiently. Its primary advantages include a space-saving design with a 2.5 mm bore and 7 mm outside diameter, making it ideal for small, precision mechanisms. The inclusion of RS seals provides effective protection against contaminants, ensuring long service life and consistent operation in various environments.
692x 2rs Bearing Model Code Explained, Specifications & Naming Convention
- 692: Denotes the bearing series, indicating a specific cross-section and size relationship.
- x: The 'x' typically signifies a non-standard or specific variant, often relating to the internal clearance or other minor design modifications. In this context, it correlates with the specified MC3 radial internal clearance.
- 2RS: Indicates that the bearing is equipped with two contact seals (one on each side) made of Nitrile Rubber (NBR). These seals provide superior protection against dust, moisture, and other contaminants compared to non-contact shields.
692x 2rs Bearing Structural Features & Performance Benefits
Robust Construction for Reliability: Built with Chrome Steel rings and balls, this bearing offers excellent wear resistance and durability. The stainless steel cage ensures precise ball guidance and is suitable for a wide operating temperature range.
Optimized Load Capacity: With a dynamic load rating of 74 lbf and a static load rating of 23 lbf, it is engineered to handle significant radial forces for its size, providing reliable performance in demanding applications.
Effective Sealing for Longevity: The 2RS contact seals are highly effective at retaining lubricant and excluding contaminants. This design significantly extends the bearing's service life and reduces maintenance needs, making it a low-maintenance component.
Precision and Speed: Manufactured to ABEC1 tolerance class, it ensures smooth and quiet operation. The specified MC3 radial internal clearance (0.002mm to 0.013mm) is optimized for its size and contributes to stable performance. The limiting speed of 63,000 rpm makes it suitable for high-speed applications such as small motors and spindles.
692x 2rs Bearing Typical Application Areas
The 692x 2rs bearing is widely used in compact and precision devices, including:
- Small Electric Motors (e.g., in drones, RC models, and miniature fans)
- Precision Instruments and optical devices
- Office Automation Equipment such as printers and scanners
- Medical Devices requiring small, reliable rotational components
- Computer Cooling Fans and other small machinery
