305
With Filling Slots Deep Groove Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
305
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.24 kg
Tolerance class
P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.013mm to 0
Width
17 mm
Width tolerance
-0.12mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
5148 lbf
Radial static load rating
3507 lbf
Limiting speed
13 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:
$ 8.49
/ each
In Stock
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305 Bearing Product Overview & Core Advantages
The 305 metric ball bearing is a high-performance single row deep groove ball bearing engineered for demanding applications. Its fundamental design excels at accommodating radial loads while also managing moderate axial loads in both directions. Manufactured with precision P0 tolerance and a CN radial internal clearance, this bearing is a reliable choice for general industrial machinery requiring consistent operation and long service life. Its open design allows for versatile lubrication options and facilitates high-speed operation.
305 Bearing Model Code Explained, Specifications & Naming Convention
| Code / Suffix | Technical Meaning |
|---|---|
| 305 | Standard metric series designation, indicating a 25mm bore, 62mm OD, and 17mm width. |
| Open | No seals or shields, allowing for high-speed performance and custom lubrication regimes. |
| P0 | Standard tolerance class per ISO standards, ensuring dimensional accuracy and interchangeability. |
| CN | Normal radial internal clearance for most common operating conditions and fits. |
305 Bearing Structural Features & Performance Benefits
- Robust Construction: Crafted from high-grade Chrome Steel for both rings and balls, providing excellent wear resistance and durability under the specified radial dynamic load rating of 5148 lbf and static load rating of 3507 lbf.
- High-Speed Capability: The open design and lightweight Nylon cage minimize friction and centrifugal forces, enabling a limiting speed of 13,000 rpm. This makes it suitable for applications requiring rapid rotation.
- Precision & Stability: Manufactured to P0 tolerance class with a CN radial clearance, ensuring smooth running, low vibration, and precise shaft positioning.
- Versatile Operation: With a broad temperature range of -30°C to 120°C and no pre-applied lubrication, it can be tailored with specific greases or oils to suit a wide array of operational environments.
305 Bearing Typical Application Areas
This versatile ball bearing is widely used across various industries due to its balanced performance characteristics. Common applications include:
- Electric Motors and Generators
- Gearboxes and Power Transmission Systems
- Industrial Fans and Blowers
- Material Handling Conveyors
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
