608zz
600 Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
608zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
12.9 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
22 mm
Outside diameter tolerance
-0.008mm to 0
Width
7 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
3.969 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
630 lbf
Radial static load rating
248 lbf
Limiting speed
34 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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608zz Bearing Product Overview & Core Advantages
The 608zz shielded ball bearing is a metric deep groove ball bearing designed for reliable performance in a wide range of applications. As a single row bearing with integral shields (zz), it offers effective protection against contamination while supporting primarily radial loads. Its compact design, featuring an 8 mm bore, 22 mm outside diameter, and 7 mm width, makes it an ideal choice for applications demanding a small footprint and high-speed capability up to 34,000 rpm. Manufactured to ABEC1 precision tolerances, this bearing provides a cost-effective solution for smooth and quiet operation.
608zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 608 | Standard bearing series number denoting dimensions: 8mm bore, 22mm OD, 7mm width. | Defines the core bearing dimensions for interchangeability and selection. |
| zz | Specifies that the bearing is equipped with shields on both sides. | Provides effective protection from dust and debris, enhancing bearing life and reliability. It is not a contact seal, minimizing friction for high-speed operation. |
608zz Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & Single Row Design: The deep, continuous raceways on both rings are optimized to support significant radial loads and moderate axial loads in both directions, ensuring versatile performance.
- Shielded Construction: The non-contact stainless steel shields (zz) retain lubricant and exclude larger particulate contaminants, making the bearing suitable for environments where minimal maintenance is desired.
- High-Speed Capability: The combination of a lightweight stainless steel cage, precision-ground chrome steel components, and optimized internal geometry allows for a high limiting speed of 34,000 rpm.
- Precision & Reliability: Manufactured to ABEC1 tolerance class, this bearing ensures consistent running accuracy and low noise, which is critical for smooth operation in precision equipment.
- Standard Internal Clearance (MC3/C3): The specified radial internal clearance (0.002mm to 0.013mm) is suitable for most general applications, accommodating operational heat expansion for stable performance.
608zz Bearing Typical Application Areas
- Electric Motors: Small motors, fan motors, and spindle motors where high speed and reliability are paramount.
- Power Tools: Drills, grinders, and other handheld tools requiring durable, shielded bearings.
- Office Machinery & Computer Peripherals: Hard disk drives, printers, and cooling fans.
- Conveyor Systems: Idler rollers and guide pulleys in light-duty material handling.
- Sports Equipment & Skateboards: Inline skates, skateboard wheels, and fishing reels.
- Small Appliances & Ventilation Fans: Food processors, blenders, and HVAC fans.
