306-2Z
With Filling Slots Deep Groove Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
306-2Z
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.37 kg
Tolerance class
P0
Seal type
Shielded
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
8.8 X 1000 rpm
Lubrication
Grease
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:
$ 11.26
/ each
In Stock
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306-2Z Bearing Product Overview & Core Advantages
The 306-2Z is a single row deep groove ball bearing designed for exceptional performance in demanding applications. Engineered with metric dimensions and constructed from high-grade chrome steel, this bearing is optimized to handle primarily radial loads efficiently. Its key advantages include a shielded design (2Z) for contaminant protection, factory-pre-lubricated with grease for immediate operation, and a nylon cage that contributes to smooth, high-speed operation. This combination makes it a reliable, low-maintenance solution for a wide range of industrial machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 306 | Standard bearing series designation, indicating the basic size dimensions (30mm bore, 72mm OD, 19mm width). |
| 2Z | Signifies double-shielded construction (one shield on each side). This provides effective protection against solid contaminants while allowing for higher speeds compared to contact seals. |
306-2Z Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: Manufactured from chrome steel rings and balls, this bearing offers a high radial dynamic load rating of 6677 lbf and a static load rating of 4856 lbf, ensuring durability under significant stress.
- High-Speed Capability: The lightweight nylon cage minimizes centrifugal forces and friction, enabling a high limiting speed of 8,800 rpm. This makes it suitable for applications requiring rapid rotation.
- Contaminant Protection & Low Maintenance: The double shields (2Z) effectively retain the factory-applied grease lubricant and exclude dust and debris. This sealed-for-life design significantly extends service intervals and enhances reliability.
- Precision & Stability: Built to P0 (Normal) tolerance class and standard CN radial internal clearance, it provides consistent performance and running accuracy for general industrial applications.
306-2Z Bearing Typical Application Areas
This versatile shielded ball bearing is ideally suited for a multitude of applications across various industries, including:
- Electric Motors and Small Gearboxes
- Industrial Fans and Blowers
- Conveyor Systems and Material Handling Equipment
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
