SR1-4
SR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SR1-4
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.4 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.07813"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.25"
Outside diameter tolerance
-0.0003" to 0"
Width
0.0937"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
49 lbf
Radial static load rating
15 lbf
Limiting speed
60.3 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:
$ 2.29
/ each
In Stock
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SR1-4 Bearing Product Overview & Core Advantages
The SR1-4 is a single row deep groove ball bearing designed for precision radial load applications in compact spaces. Manufactured entirely from stainless steel, it offers excellent corrosion resistance and is suitable for a wide operating temperature range. This bearing features an open design and requires lubrication, making it ideal for applications where specific lubricants are preferred. Its ABEC1 precision class ensures reliable performance for general industrial and instrument use.
SR1-4 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| SR1-4 | Base Model | Denotes a single row, inch-series deep groove ball bearing with specific dimensions. |
| (No Suffix) | Open, Standard | Indicates an open bearing without seals or shields, and a standard inner ring design. |
SR1-4 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and durability in harsh environments, with an operating temperature from -86 to 230 °F.
- Deep Groove Raceway: Optimized for handling radial loads efficiently. The design also accommodates moderate axial loads in both directions.
- High-Speed Capability: With a limiting speed of 60,300 rpm, this bearing is suitable for high-speed spindles and miniature motors.
- Precision Engineering: Manufactured to ABEC1 tolerance class with a controlled MC3 radial internal clearance (0.00008" to 0.0005"), ensuring smooth and consistent operation.
- Compact and Lightweight: With a low weight of just 0.4 grams, it is ideal for applications where minimizing mass and space is critical.
SR1-4 Bearing Typical Application Areas
- Precision Instruments and Optical Encoders
- Small Electric Motors and Miniature Gearboxes
- Medical Devices and Dental Handpieces
- Office Automation Equipment
- Radio Control Models and Drones
