306
With Filling Slots Deep Groove Bearings
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Part No.
Part No.
306
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.37 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.013mm to 0
Width
19 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
6677 lbf
Radial static load rating
4856 lbf
Limiting speed
11 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Nylon
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 10.27
/ each
In Stock
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306 Bearing Product Overview & Core Advantages
The 306 is a metric single row deep groove ball bearing, engineered for high performance in demanding applications. Its primary function is to support radial loads efficiently. Constructed from high-grade chrome steel for both rings and balls, this bearing offers excellent durability and wear resistance. The open design and P0 tolerance class make it a versatile and cost-effective solution for a wide range of industrial machinery, providing reliable operation and long service life.
306 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Implication |
|---|---|---|
| 306 | Basic Designation | Indicates a single row deep groove ball bearing with a 30mm bore and 72mm outside diameter. |
| (No Suffix) | Open, Standard | The bearing is open (unsealed), allowing for high-speed operation and custom lubrication schemes. Features a nylon cage for reduced weight and smooth operation. |
306 Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & High Load Capacity: The uninterrupted deep groove raceways on both rings are optimized to support significant radial loads (Dynamic: 6677 lbf, Static: 4856 lbf), making it a robust choice for various applications.
- High-Speed Capability: The combination of an open design and a lightweight nylon cage enables a high limiting speed of 11,000 rpm, minimizing friction and heat generation.
- Precision & Reliability: Manufactured to P0 tolerance class and standard CN radial internal clearance, this bearing ensures consistent performance, smooth running, and reliable operation in general industrial use.
- Material Integrity: The use of chrome steel for all critical components provides high hardness, resistance to deformation, and a long operational lifespan under typical loads.
306 Bearing Typical Application Areas
This versatile 306 ball bearing is commonly specified in:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring reliable radial load support
