608
600 Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
608
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
11.8 g
Tolerance class
ABEC1
Seal type
Open
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
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.13
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
608 Bearing Product Overview & Core Advantages
The 608 metric ball bearing is a fundamental single row deep groove ball bearing designed for reliable performance in a wide range of applications. Engineered to primarily support radial loads, this open-type bearing offers a compact design with a 8 mm bore, 22 mm outside diameter, and a 7 mm width. Manufactured from high-grade chrome steel with a stainless steel cage, it provides excellent durability and consistent operation. Its ABEC1 tolerance class ensures good running accuracy for general-purpose use, making it a versatile and cost-effective solution for various mechanical systems.
608 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 608 | Basic Model Number | Denotes a standard metric, single row deep groove ball bearing with an 8mm bore, 22mm OD, and 7mm width. |
| Open (No Seal/Shield suffix) | Seal Type | The bearing is supplied without seals or shields, allowing for high-speed operation and easy re-lubrication. It requires a clean operating environment or external sealing. |
| (Implied ABEC1) | Tolerance Class | Standard precision grade suitable for most general applications, ensuring good performance and interchangeability. |
| (Implied C3 Clearance) | Radial Internal Clearance | Greater than normal clearance (0.002mm to 0.013mm), suitable for applications with expected thermal expansion or where interference fits are used. |
608 Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & High-Quality Components: The deep, continuous raceways on both rings enable efficient handling of radial loads and moderate axial loads in both directions. The use of chrome steel for rings and balls, combined with a corrosion-resistant stainless steel cage, ensures high strength and long service life.
- Optimized for Speed: The open design and lightweight stainless steel cage contribute to a high limiting speed of 34,000 rpm, making it suitable for high-velocity applications like small spindles and fans.
- Standardized Dimensions & Interchangeability: As a standard 608 bearing, it conforms to international dimension standards, ensuring easy replacement and sourcing from multiple manufacturers.
- Flexible Lubrication: The open construction allows for the use of a wide variety of lubricants (grease or oil) tailored to specific operational needs, including temperature and speed requirements.
608 Bearing Typical Application Areas
The 608 bearing is one of the most widely used bearings across industries due to its versatility and reliability. Key applications include:
- Electric Motors: Small motors in appliances, power tools, and fans.
- Precision Instruments: Office machinery, medical devices, and optical equipment.
- Material Handling: Conveyor rollers, skateboards, and inline skates.
- Automotive Auxiliaries: Idler pulleys, small pumps, and blower motors.
- Consumer Products: Computer cooling fans, RC models, and small appliances.
