S628 2rs
600 Series Stainless Steel Miniature Bearings
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Part No.
Part No.
S628 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
18.5 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
8 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
24 mm
Outside diameter tolerance
-0.008mm to 0
Width
8 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
574 lbf
Radial static load rating
230 lbf
Limiting speed
25.2 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Stainless Steel
Ball material
Stainless 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:
$ 1.35
/ each
In Stock
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S628 2rs Bearing Product Overview & Core Advantages
The S628 2RS is a metric single row deep groove ball bearing designed for exceptional performance in demanding applications. Constructed entirely from stainless steel (rings, balls, and cage), it offers superior corrosion resistance. Its key advantage lies in its sealed design (2RS), which provides effective protection against contaminants and retains lubrication, making it a robust and reliable choice for applications requiring radial load capacity and long-term operation with minimal maintenance.
S628 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| S | Stainless Steel | Indicates the bearing rings and balls are made from stainless steel, providing excellent corrosion resistance. |
| 628 | Size Series | Denotes the specific bearing dimensions: 8mm bore, 24mm outside diameter, 8mm width. |
| 2RS | Double Contact Seals | Signifies the bearing is fitted with nitrile rubber (NBR) seals on both sides, offering superior protection against dust and moisture ingress while retaining lubricant. |
S628 2rs Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & Single Row Design: Optimized for handling radial loads efficiently. The geometry ensures smooth operation and low running torque.
- Full Complement Stainless Steel Construction: Provides consistent performance and high resistance to corrosion, suitable for harsh environments. The one-piece stainless steel cage ensures stability and guides the 7 precision balls effectively.
- Integrated Double Seals (2RS): The nitrile rubber seals make the bearing virtually maintenance-free by shielding internal components from contaminants and preventing lubricant leakage, enhancing service life.
- ABEC1 Precision Class: Manufactured to standard precision tolerances, ensuring reliable and consistent performance for a wide range of industrial applications.
- Optimized Internal Clearance (MC3): The specified radial internal clearance is suitable for a wide range of operating conditions, contributing to stable performance under varying temperatures and loads.
S628 2rs Bearing Typical Application Areas
The S628 2RS is ideally suited for applications where corrosion resistance, reliability, and sealed operation are critical. Common uses include:
- Food & Beverage Processing Equipment (conveyors, mixers)
- Medical and Laboratory Devices
- Chemical Handling Equipment
- Agricultural Machinery
- Electric Motors and Small Gearboxes
- Office Automation Equipment and Precision Instruments
