S681xzz
600 Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S681xzz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.14 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
1.5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
4 mm
Outside diameter tolerance
-0.008mm to 0
Width
2 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.6 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
19 lbf
Radial static load rating
5 lbf
Limiting speed
90 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:
$ 14.7
/ each
In Stock
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S681xzz Bearing Product Overview & Core Advantages
The S681xzz is a miniature deep groove ball bearing engineered for precision applications requiring compact dimensions and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its single row design with shielded (ZZ) construction provides effective protection against contamination while maintaining low friction. This bearing is designed to handle primarily radial loads and is ideal for high-speed, low-torque operations, making it a critical component in devices where space is limited and precision is paramount.
S681xzz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| S681 | Basic bearing designation indicating a miniature metric series with a 1.5mm bore. | Defines the compact bearing size and series. |
| x | Variant placeholder (specific suffix may vary). | Indicates potential design variations within the series. |
| ZZ | Bearing is equipped with non-contact shields on both sides. | Protects internal components from dust and debris without significantly increasing friction, aiding in maintaining the limiting speed. |
S681xzz Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With an overall weight of just 0.14 g and ultra-small dimensions (1.5mm bore, 4mm OD, 2mm width), this bearing is the ideal solution for miniaturized assemblies.
- High-Speed Capability: The optimized design with 7 precision balls and a stainless steel cage enables a high limiting speed of 90,000 rpm, making it suitable for demanding high-speed applications.
- Corrosion Resistance: All components, including rings, balls, cage, and shields, are manufactured from stainless steel, ensuring long-term performance in harsh or humid environments.
- Precision Performance: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3), this bearing provides reliable and consistent operation for precision instruments.
S681xzz Bearing Typical Application Areas
This miniature bearing is extensively used in:
- Small Precision Motors (e.g., in drones, RC vehicles)
- Medical and Dental Handpieces
- Optical Encoders and Instrumentation
- Office Automation Equipment (small printers, scanners)
- High-Speed Spindles in miniature machining tools
