S688zz
600 Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S688zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
4.05 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
8 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
16 mm
Outside diameter tolerance
-0.008mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
2 mm
Ball quantity
10
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
216 lbf
Radial static load rating
96 lbf
Limiting speed
32.4 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
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
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S688zz Bearing Product Overview & Core Advantages
The S688zz is a metric single row deep groove ball bearing designed for precision applications requiring reliable performance. Constructed entirely from stainless steel (rings, balls, and cage), it offers excellent corrosion resistance. Its key advantages include the ability to handle significant radial loads and moderate axial loads in both directions, making it a versatile and compact solution. The inclusion of non-contact shields (ZZ) protects against contamination while maintaining high-speed capability, and its ABEC1 precision class ensures consistent operation for demanding applications.
S688zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Stainless Steel construction for enhanced corrosion resistance. |
| 688 | The bearing series, indicating a compact design with an 8 mm bore, 16 mm outside diameter, and 5 mm width. |
| zz | Signifies that the bearing is equipped with non-contact shields on both sides. This provides effective protection against dust and other particulates without significantly increasing friction, aiding in maintaining the limiting speed. |
S688zz Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & High-Capacity Design: The deep, continuous raceways on both rings enable the S688zz to support not only high radial dynamic load ratings (216 lbf) but also bidirectional axial loads.
- Stainless Steel Construction: All critical components are made from stainless steel, providing superior resistance to rust and corrosion, which is critical for applications in harsh environments or requiring washdown.
- Optimized High-Speed Performance: The combination of a stainless steel cage, 10 precision balls, and non-contact ZZ shields allows the bearing to achieve a high limiting speed of 32,400 rpm.
- Precision and Consistency: Manufactured to ABEC1 tolerance class and an MC3 radial internal clearance (0.002mm to 0.013mm), this bearing ensures smooth, low-vibration, and reliable operation.
- Shielded Protection: The ZZ shields help retain lubricant and exclude contaminants, extending bearing life and reducing maintenance needs.
S688zz Bearing Typical Application Areas
This bearing is ideally suited for a wide range of precision instruments and small machinery, including:
- Small electric motors and gearboxes
- Medical and dental handpieces
- Precision spindles
- Office automation equipment (printers, scanners)
- Radio-controlled models and drones
- Food processing and packaging machinery (due to its stainless steel construction)
