ET2520 2RS
ET Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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ET2520 2RS Bearing Product Overview & Core Advantages
The ET2520 2RS is a metric single row deep groove ball bearing designed for precision applications requiring reliable performance in compact spaces. Featuring integrated rubber seals (2RS) on both sides, this bearing provides excellent protection against contamination while retaining lubrication. Its ABEC-1 precision class and optimized radial internal clearance (C0) ensure smooth operation and consistent performance. The bearing's compact design with a 4mm width makes it ideal for applications where space constraints are critical while maintaining excellent radial load capacity and operational stability.
ET2520 2RS Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| ET2520 | Bore diameter: 20mm, Outside diameter: 25mm | Compact dimensional design |
| 2RS | Double rubber contact seals | Superior contamination protection and lubrication retention |
ET2520 2RS Bearing Structural Features & Performance Benefits
Sealed Construction: The double rubber seals (2RS) provide effective protection against dust, moisture, and other contaminants, making the bearing suitable for harsh environments while maintaining lubrication integrity.
Precision Engineering: Manufactured to ABEC-1 tolerance standards with C0 radial clearance (0.006mm to 0.020mm), ensuring smooth operation and reduced vibration in precision applications.
Material Excellence: Constructed with chrome steel rings and balls combined with a stainless steel cage, providing excellent durability, corrosion resistance, and consistent performance across the operating temperature range of -30°C to 110°C.
Load Capacity: With a dynamic radial load rating of 227 lbf and static radial load rating of 155 lbf, this bearing delivers reliable performance in various radial load applications.
ET2520 2RS Bearing Typical Application Areas
- Small electric motors and miniature DC motors
- Precision instruments and measurement devices
- Office automation equipment including printers and scanners
- Medical devices and laboratory equipment
- Robotics and automation components
- Consumer electronics with rotating mechanisms
