SMR93zz
SMR Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SMR93zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.15 g
Tolerance class
ABEC1
Seal type
Shielded
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
0.002mm to 0.013mm
Radial internal clearance
MC3
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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SMR93zz Bearing Product Overview & Core Advantages
The SMR93zz is a metric miniature ball bearing designed for precision applications requiring compact dimensions and reliable performance. This single row, shielded bearing is constructed entirely from stainless steel, offering excellent corrosion resistance. It is engineered to handle primarily radial loads and is characterized by its ABEC1 precision class, making it suitable for high-speed operations up to 50,400 rpm. Its pre-lubricated and shielded design ensures long service life with minimal maintenance in demanding environments.
SMR93zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SMR93 | Standard designation for a series of miniature bearings with a 3mm bore, 9mm OD, and 4mm width. |
| zz | Indicates the bearing is equipped with shields on both sides (2Z). This provides effective protection against contamination while allowing for high-speed operation. |
SMR93zz Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With dimensions of 3x9x4 mm and a weight of just 1.15g, it is ideal for space-constrained applications.
- Stainless Steel Construction: All components, including rings, balls, cage, and shields, are made from stainless steel, providing superior corrosion resistance and durability.
- High-Speed Capability: The optimized stainless steel cage and ABEC1 precision contribute to a high limiting speed of 50,400 rpm.
- Shielded Protection: The zz (double-shielded) design effectively seals the bearing, retaining lubrication and excluding contaminants, which enhances reliability and service life.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group), ensuring smooth and consistent operation.
SMR93zz Bearing Typical Application Areas
- Small Precision Motors (e.g., drone motors, RC models)
- Medical and Dental Handpieces
- Office Automation Equipment (printers, scanners, copiers)
- Instrumentation and Measurement Devices
- Small Fans and Blowers
- Textile Machinery Guides
