693zz
600 Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
693zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.8 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
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
300 Series Stainless Steel
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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693zz Bearing Product Overview & Core Advantages
The 693zz is a single row deep groove ball bearing designed for high performance in compact spaces. This metric precision bearing excels in applications requiring reliable operation under radial loads. Its shielded construction and standardized dimensions make it a versatile and dependable component for a wide range of machinery and instruments, offering an excellent balance of performance, durability, and cost-effectiveness.
693zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 693 | The basic bearing designation, indicating a metric deep groove ball bearing with a 3mm bore, 8mm outside diameter, and 4mm width. |
| zz | Signifies that the bearing is equipped with non-contact shields (Z-shields) on both sides. This provides effective protection against contamination while minimizing friction and allowing for higher limiting speeds compared to contact seals. |
693zz Bearing Structural Features & Performance Benefits
- Robust Construction for Radial Loads: The single row deep groove raceway and high-quality chrome steel rings and balls are engineered to handle significant radial dynamic loads (107 lbf) efficiently.
- Enhanced Contamination Protection: The 300 series stainless steel shields (zz) protect the internal components from dust and debris, extending bearing life and reliability without significantly increasing rotational torque.
- Stable Cage for Smooth Operation: The stainless steel cage ensures proper ball spacing and guidance, contributing to smooth, quiet, and stable rotation, even at the maximum limiting speed of 60,000 rpm.
- Precision Manufacturing: Manufactured to ABEC1 tolerance class with a MC3 radial internal clearance (0.002mm to 0.013mm), ensuring consistent performance and interchangeability.
693zz Bearing Typical Application Areas
- Small Electric Motors: Ideal for spindle motors in cooling fans, small power tools, and precision DC motors.
- Office Automation Equipment: Commonly used in printers, scanners, and copiers.
- Precision Instruments and Medical Devices: Suitable for sensitive equipment requiring smooth, low-noise, and reliable rotation.
- Radio-Controlled Models and Robotics: Provides durable and efficient performance in gearboxes and drive systems.
- Computer Peripherals: Used in hard disk drives and optical disc drives.
