SMR82xzz
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR82xzz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.52 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
2.5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
8 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
96 lbf
Radial static load rating
29 lbf
Limiting speed
54 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:
$ 2.06
/ each
In Stock
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SMR82xzz Bearing Product Overview & Core Advantages
The SMR82xzz is a miniature single row deep groove ball bearing engineered for precision applications requiring compact design and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its shielded design provides effective protection against contamination while maintaining low operating torque. This bearing is designed to handle primarily radial loads and is characterized by its small bore diameter of 2.5 mm and overall compact dimensions, making it ideal for space-constrained, high-precision assemblies demanding long-term reliability.
SMR82xzz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix / Prefix | Technical Meaning | Advantage |
|---|---|---|
| SMR | Manufacturer Series Designation | Identifies the product family for miniature bearings. |
| 82 | Bore Diameter Code (2.5 mm) | Specifies the precise bearing size for design integration. |
| x | Outside Diameter Code (8 mm) | Defines the outer dimension for housing fit. |
| zz | Shielded on Both Sides | Provides robust protection from dust and debris, extending service life. |
SMR82xzz Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a width of only 2.5 mm and a weight of 0.52 g, this bearing is optimized for miniature mechanisms and portable devices where space and weight are critical constraints.
- Corrosion Resistance: The use of 300 series stainless steel for all components, including the shield, ensures reliable operation in humid or mildly corrosive environments.
- Precision Performance: Manufactured to ABEC1 tolerance class and featuring a controlled radial internal clearance (MC3), it delivers smooth and consistent running accuracy, minimizing vibration and noise.
- Effective Contamination Protection: The non-contact shielded seals help retain lubrication and exclude larger particulate contaminants, contributing to a maintenance-free operational life in many applications.
- Optimized Load Capacity: The deep groove raceway and six precision balls provide a dynamic load rating of 96 lbf, enabling it to handle significant radial loads for its size.
SMR82xzz Bearing Typical Application Areas
- Precision Instruments: Optical encoders, gauges, and laboratory equipment.
- Small Motors: Stepper motors, coreless motors, and miniature DC motors.
- Office Automation: Printers, scanners, and copiers.
- Medical Devices: Surgical hand tools, dental drills, and diagnostic equipment.
- Consumer Electronics: Small fans, drones, and miniature robotic joints.
