ET2520
ET Series Thin Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
ET2520
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2.96 g
Tolerance class
ABEC-1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
25 mm
Outside diameter tolerance
-0.009mm to 0
Width
4 mm
Width tolerance
-0.120mm to 0
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
227 lbf
Radial static load rating
155 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Required
Radial internal clearance
C0
Radial internal clearance
0.006mm to 0.020mm
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 9.31
/ each
In Stock
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ET2520 Bearing Product Overview & Core Advantages
The ET2520 is a metric single row deep groove ball bearing engineered for high performance in compact spaces. Characterized by its open design and ABEC-1 precision class, this bearing is optimized for applications requiring reliable radial load support. Its chrome steel construction ensures durability and consistent operation, making it a dependable choice for various industrial mechanisms where space and weight are critical constraints.
ET2520 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| ET2520 | Basic bearing designation indicating a 25 mm outside diameter and a 20 mm bore diameter. |
| Open | No seals or shields, allowing for higher speed capability and requiring external lubrication. |
| ABEC-1 | Defines the precision tolerance class, ensuring consistent dimensional accuracy for smooth operation. |
| C0 | Specifies the standard radial internal clearance group (0.006mm to 0.020mm) for general operating conditions. |
ET2520 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 10,000 rpm, making it suitable for demanding rotational applications.
- Radial Load Capacity: Engineered to handle significant radial dynamic loads (227 lbf) and static loads (155 lbf), providing robust support in compact assemblies.
- Precision Engineering: Manufactured to ABEC-1 tolerances with tight bore and outside diameter controls, ensuring smooth and vibration-free performance.
- Material Integrity: Components made from chrome steel (rings and balls) offer high hardness and wear resistance, while the stainless steel cage provides corrosion resistance and cage stability.
ET2520 Bearing Typical Application Areas
This bearing is ideally suited for a range of compact and precision devices, including:
- Small Electric Motors and Spindle Drives
- Precision Instruments and Optical Encoders
- Office Automation Equipment (e.g., printers, scanners)
- Medical Devices and Dental Handpieces
- Light-duty Industrial Gearboxes and Pumps
