SR3
SR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SR3
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
2.21 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.1875"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.5"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1562"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.0937"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
224 lbf
Radial static load rating
79 lbf
Limiting speed
38.7 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.00008" to 0.0005"
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:
$ 1.12
/ each
In Stock
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SR3 Bearing Product Overview & Core Advantages
The SR3 is a precision miniature ball bearing designed for demanding applications requiring high reliability in compact spaces. This single row deep groove ball bearing in stainless steel construction offers excellent radial load capacity and smooth operation. Its open design allows for versatile lubrication options, making it suitable for a wide operating temperature range from -86 to 230 °F. With an ABEC1 tolerance class, it provides dependable performance for general precision applications.
SR3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Significance |
|---|---|
| SR3 | Standard bearing series designation with specific inch dimensions (Bore: 0.1875", OD: 0.5", Width: 0.1562") |
| Open | No integral seals or shields, allowing for custom lubrication schemes and maximum speed capability |
| MC3 | Specifies the radial internal clearance group (0.00008" to 0.0005") |
SR3 Bearing Structural Features & Performance Benefits
- All-Stainless Steel Construction: Rings, balls, and cage manufactured from stainless steel provide superior corrosion resistance and durability in harsh environments.
- Optimized Radial Load Capacity: The deep groove raceway and 7-ball configuration deliver a dynamic load rating of 224 lbf and static load rating of 79 lbf for reliable performance under stress.
- High-Speed Capability: With a limiting speed of 38,700 rpm, this bearing is engineered for high-velocity applications, benefiting from the open design and precision manufacturing.
- Precision Engineering: Manufactured to ABEC1 tolerance standards with controlled radial internal clearance, ensuring consistent running accuracy and low vibration.
- Broad Temperature Range: Suitable for operations from -86 to 230 °F, accommodating various industrial and environmental conditions.
SR3 Bearing Typical Application Areas
- Precision instruments and optical devices
- Small electric motors and miniature gearboxes
- Medical equipment and dental handpieces
- Robotics and RC models
- Office automation equipment and computer peripherals
- Laboratory and testing apparatus
