SMR115zz
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR115zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.62 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
11 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
123 lbf
Radial static load rating
46 lbf
Limiting speed
40.5 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
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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SMR115zz Bearing Product Overview & Core Advantages
The SMR115zz is a precision miniature ball bearing designed for applications demanding high reliability in compact spaces. As a single row deep groove ball bearing, it excels at handling radial loads while also accommodating moderate axial loads in both directions. Manufactured entirely from stainless steel with integrated shields, it offers excellent corrosion resistance. Its compact dimensions (5mm bore, 11mm OD, 4mm width) and ABEC1 precision class make it an ideal choice for high-speed, low-noise operations in demanding environments.
SMR115zz Bearing Model Code Explained, Specifications & Naming Convention
The model designation "SMR115zz" provides key technical specifications:
- SMR115: Indicates the bearing series and size (5mm bore, 11mm OD)
- zz: Signifies that the bearing features shielded seals on both sides. These non-contact shields protect against contamination while minimizing friction, making them suitable for high-speed applications up to 40,500 rpm.
SMR115zz Bearing Structural Features & Performance Benefits
- High-Speed Capability: The stainless steel cage and optimized ball quantity (8) and ball diameter (1.588mm) contribute to stable operation at the limiting speed of 40,500 rpm.
- Corrosion Resistance: All components, including rings, balls, cage, and shields, are manufactured from stainless steel, ensuring reliable performance in humid or corrosive environments.
- Precision Performance: Built to ABEC1 tolerance class with a controlled radial internal clearance (MC3: 0.002mm to 0.013mm), ensuring smooth and precise rotation.
- Robust Load Capacity: With a dynamic load rating of 123 lbf and static load rating of 46 lbf, it provides reliable performance under significant radial stresses.
SMR115zz Bearing Typical Application Areas
This bearing is widely used in:
- Small Precision Motors (e.g., drone motors, miniature DC motors)
- Medical and Dental Instruments
- Office Automation Equipment (printers, scanners, copiers)
- Robotics and RC Models
- Precision Instrumentation and optical devices
