SMR93 2rs
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR93 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.75 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
3 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
9 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
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
98 lbf
Radial static load rating
31 lbf
Limiting speed
50.4 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
Nitrile Rubber
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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SMR93 2rs Bearing Product Overview & Core Advantages
The SMR93 2RS is a metric miniature ball bearing engineered for precision applications requiring compact dimensions and reliable performance. This single row deep groove ball bearing features integral rubber seals (2RS) for effective contamination protection. Constructed entirely from stainless steel, it offers excellent corrosion resistance, making it suitable for demanding environments. Its design is optimized to handle primarily radial loads while accommodating moderate axial loads, providing a robust and durable solution for high-speed, low-torque applications where space is limited.
SMR93 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMR93 | Standard bearing series designation indicating a 3mm bore, 9mm OD, and 4mm width. |
| 2RS | Indicates double rubber contact seals on both sides, providing superior protection against dust and moisture ingress. |
SMR93 2rs Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With dimensions of 3mm (bore) x 9mm (OD) x 4mm (width) and a weight of just 0.75g, this bearing is ideal for space-constrained miniature applications.
- Corrosion Resistance: Manufactured from stainless steel rings, balls, and cage, it delivers excellent performance in corrosive or washdown environments.
- Effective Sealing: The double rubber contact seals (2RS) effectively retain lubrication and exclude contaminants, enhancing bearing service life and reliability.
- High-Speed Capability: The ABEC1 precision class and optimized internal geometry enable smooth operation at limiting speeds up to 50,400 rpm.
- Standard Internal Clearance (MC3): Provides optimal performance for most general applications, balancing heat generation and operational precision.
SMR93 2rs Bearing Typical Application Areas
- Small Precision Motors: Ideal for miniature DC motors, stepper motors, and coreless motors.
- Medical Devices: Used in surgical handpieces, dental tools, and diagnostic equipment requiring corrosion resistance.
- Office Automation: Suitable for printers, scanners, and copiers where compact size and reliability are critical.
- Robotics & Automation: Applied in small robotic joints, actuators, and precision guidance systems.
- Instrumentation: Perfect for gauges, meters, and other precision measuring devices.
