625 2rs
600 Series Miniature Bearings
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Part No.
Part No.
625 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
5.1 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
16 mm
Outside diameter tolerance
-0.008mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
2.778 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
331 lbf
Radial static load rating
122 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Shield material
Nitrile Rubber
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.13
/ each
In Stock
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Product Overview and Core Advantages
The 625 2RS is a metric single row deep groove ball bearing designed for reliable performance in various industrial applications. This sealed bearing features effective protection against contamination with its nitrile rubber (NBR) contact seals (2RS) on both sides. Manufactured from chrome steel with a stainless steel cage, it offers a robust solution for handling radial loads primarily. Its compact dimensions (5mm bore, 16mm OD, 5mm width) and ABEC1 precision class make it suitable for applications requiring consistent operation and moderate speed capabilities up to 36,000 rpm.
625 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 625 | Basic bearing series designation, indicating a metric deep groove ball bearing with a 5mm bore diameter, 16mm outside diameter, and 5mm width. |
| 2RS | Denotes two-sided contact seals made of Nitrile Rubber (NBR). This provides superior protection against dust, moisture, and other contaminants, helping to retain lubricant and extend service life. |
Structural Features and Performance Benefits
- Robust Construction and Radial Load Capacity: The single row deep groove raceway design, combined with chrome steel rings and balls, provides reliable performance under the specified radial dynamic load rating of 331 lbf and static load rating of 122 lbf.
- Effective Sealing for Contaminated Environments: The 2RS contact seals effectively shield the internal components from contaminants, making this bearing suitable for applications where dirt or moisture is present. This design helps maintain lubricant integrity.
- Stable Operation with Stainless Steel Cage: The stainless steel cage ensures precise ball guidance, contributing to smooth operation, reduced friction, and suitability for the specified limiting speed of 36,000 rpm.
- Standard Internal Clearance: The bearing features a C3 radial internal clearance (0.002mm to 0.013mm), which is suitable for applications with expected temperature variations or where slight misalignments may occur.
625 2rs Bearing Typical Application Areas
- Small Electric Motors and Gearboxes
- Office Machinery and Computer Cooling Fans
- Medical Devices and Precision Instruments
- Conveyor System Idler Rolls
- Ventilation Fans and Blowers
- Light-duty Power Tools and Appliances
