685 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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685 2rs Bearing Product Overview & Core Advantages
The 685 2RS is a metric single row deep groove ball bearing designed for reliable performance in compact spaces. Featuring integrated rubber seals (2RS) on both sides, this bearing provides excellent contamination protection while maintaining smooth operation. Its 5mm bore diameter and compact 11mm OD × 5mm width dimensions make it ideal for applications requiring space optimization without compromising load capacity. The bearing delivers balanced radial load performance and is pre-lubricated for immediate installation and long-term reliability.
685 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 685 | Basic bearing designation indicating 5mm bore, 11mm OD, 5mm width | Standardized dimensions for easy replacement and compatibility |
| 2RS | Double rubber contact seals on both sides | Superior protection against contaminants, extended service life |
685 2rs Bearing Structural Features & Performance Benefits
Deep Groove Geometry: The optimized raceway design enables efficient radial load distribution and accommodates moderate axial loads in both directions.
Double Rubber Seals (2RS): Nitrile rubber seals provide effective contamination exclusion while retaining lubrication, making the bearing suitable for dusty or humid environments.
Stainless Steel Cage: The precision-formed cage ensures stable ball guidance and contributes to smooth operation at the rated limiting speed of 45,000 rpm.
Chrome Steel Construction: Both rings and balls are manufactured from chrome steel, providing excellent wear resistance and durability under the specified temperature range of -30°C to 110°C.
ABEC1 Precision: Standard tolerance class ensures consistent performance and reliable operation in general industrial applications.
685 2rs Bearing Typical Application Areas
- Small Electric Motors: Used in miniature DC motors, fan motors, and servo motors
- Office Equipment: Precision mechanisms in printers, scanners, and copiers
- Medical Devices: Small instrumentation, dental handpieces, and laboratory equipment
- Robotics & Automation: Joint mechanisms, small actuators, and positioning systems
- Consumer Electronics: Cooling fans, small drives, and precision mechanical assemblies
