SR156zz
SR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SR156zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.45 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.1875"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.3125"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
10
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
62 lbf
Radial static load rating
24 lbf
Limiting speed
47.7 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
Shield material
300 Series 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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SR156zz Bearing Product Overview & Core Advantages
The SR156zz is a high-precision, single row deep groove ball bearing designed for demanding applications requiring reliable performance in compact spaces. Manufactured entirely from stainless steel with integral shielded protection, this bearing offers excellent corrosion resistance and is engineered to handle significant radial loads. Its compact inch-series dimensions and ABEC1 precision tolerance make it an ideal solution for applications prioritizing high reliability, smooth operation, and long service life.
SR156zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SR | Standard Bearing Series Designation |
| 156 | Specific Bearing Size Code (Inch Series) |
| zz | Indicates the bearing is equipped with shields on both sides (non-contact), offering protection against contamination while maintaining high-speed capability. |
SR156zz Bearing Structural Features & Performance Benefits
- Robust Construction & High Reliability: The single row deep groove raceway and construction from 300 series stainless steel (rings, balls, cage, and shields) provide superior corrosion resistance and durability in harsh environments, ensuring consistent performance.
- Optimized Load Capacity: Engineered with a radial dynamic load rating of 62 lbf, this bearing is capable of handling substantial radial forces, making it suitable for a wide range of mechanical loads.
- High-Speed Performance: The non-contact zz shields and precision-ground components contribute to a high limiting speed of 47,700 rpm, minimizing friction and heat generation.
- Precision & Smooth Operation: Manufactured to ABEC1 tolerance class with a controlled MC3 radial internal clearance (0.00008" to 0.0005"), this bearing ensures smooth, low-vibration, and quiet running, which is critical for precision instruments.
- Extended Service Life: The stainless-steel construction resists corrosion, and the shields help retain lubricant and exclude contaminants, contributing to a long and maintenance-free operational lifespan when properly lubricated.
SR156zz Bearing Typical Application Areas
- Precision Instruments: Optical encoders, medical devices, and laboratory equipment.
- Small Motors & Gearboxes: Stepper motors, servo motors, and miniature drive systems.
- Office Automation Equipment: Printers, scanners, and copiers.
- Radio Control Models & Drones: Motor shafts and high-speed rotating components.
- Food & Beverage Processing Equipment: Where corrosion resistance and cleanliness are paramount.
