S633
600 Series Stainless Steel Miniature Bearings
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Part No.
Part No.
S633
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
3.27 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
3 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
13 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
2.381 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
224 lbf
Radial static load rating
79 lbf
Limiting speed
36 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
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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S633 Bearing Product Overview & Core Advantages
The S633 is a single row deep groove ball bearing designed for precision applications requiring high reliability. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This bearing excels at handling radial loads and is characterized by its compact design with a 3 mm bore, making it ideal for applications where space is limited. Its ABEC1 precision class ensures consistent performance for general precision requirements.
S633 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| S633 | Basic Designation | Denotes a metric series, single row deep groove ball bearing with a 3 mm bore and 13 mm outside diameter. |
| (No Suffix) | Open, Standard Design | Indicates an open bearing (no seals/shields) with a standard inner ring. This allows for higher limiting speeds and requires external lubrication. |
S633 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The open design and stainless steel cage minimize friction and drag, enabling a high limiting speed of 36,000 rpm for efficient operation.
- Corrosion Resistance: Constructed entirely from stainless steel (rings, balls, and cage), this bearing is suitable for applications exposed to moisture, chemicals, or demanding environments, ensuring long-term durability.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group: 0.002mm to 0.013mm), ensuring smooth and quiet running with minimal vibration.
- Robust Load Capacity: Despite its small bearing dimensions, it provides a substantial dynamic load rating of 224 lbf and a static load rating of 79 lbf for reliable performance under radial stress.
S633 Bearing Typical Application Areas
- Small Precision Motors and stepper motors
- Medical Devices and dental handpieces
- Office Automation Equipment such as scanners and small printers
- Instrumentation and precision measuring devices
- Radio Control Models and drones
