693 2rs
600 Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
693 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.8 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
8 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
107 lbf
Radial static load rating
32 lbf
Limiting speed
60 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Chrome Steel
Ball material
Chrome 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:
$ 1.13
/ each
In Stock
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693 2rs Bearing Product Overview & Core Advantages
The 693 2RS is a miniature deep groove ball bearing designed for compact applications demanding reliable performance. As a sealed single row bearing, it excels in handling radial loads and is pre-lubricated for long service life. Its key advantages include a compact design with a 3mm bore, effective sealing for contamination protection, and suitability for high-speed operation up to 60,000 rpm, making it an ideal choice for applications where space is limited and reliability is critical.
693 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 693 | Bearing series designation for miniature deep groove ball bearings with specific dimensions (3x8x4mm). | Defines the core size and type of the bearing. |
| 2RS | Contact seals on both sides, made of Nitrile Rubber (NBR). | Provides superior protection against dust, moisture, and other contaminants, retaining lubricant effectively. |
693 2rs Bearing Structural Features & Performance Benefits
- Robust Construction: Manufactured from Chrome Steel rings and balls with a Stainless Steel cage, ensuring durability and corrosion resistance.
- Effective Sealing: The 2RS contact seals safeguard the internal components, making the bearing suitable for environments where contamination is a concern, contributing to a longer operational lifespan.
- High-Speed Capability: The optimized design and ABEC1 precision class enable a high limiting speed of 60,000 rpm, ideal for demanding miniature applications.
- Pre-lubricated & Low Maintenance: The bearing comes pre-lubricated, reducing the need for maintenance and ensuring smooth operation from the start.
- Precise Internal Clearance: Features a C3 radial internal clearance (0.002mm to 0.013mm), providing optimal performance under operational thermal expansion.
693 2rs Bearing Typical Application Areas
The 693 2RS is widely used in compact and high-speed mechanisms, including:
- Small Electric Motors (e.g., in drones, RC models, precision tools)
- Office Automation Equipment (e.g., printers, scanners, copiers)
- Medical Devices and Instrumentation
- Computer Cooling Fans
- Precision Gearboxes and Small Mechanisms
