305/C3
With Filling Slots Deep Groove Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
305/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.24 kg
Tolerance class
ABEC 1 | ISO 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
C3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 9.31
/ each
In Stock
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305/C3 Bearing Product Overview & Core Advantages
The 305/C3 is a single row deep groove ball bearing engineered for superior performance in demanding applications. This open-type bearing is designed to primarily accommodate high radial loads, while also capable of handling moderate axial loads in both directions. Manufactured to ABEC 1 | ISO P0 tolerance standards, it offers reliable precision and consistent operation. A key feature is its specified C3 radial internal clearance, making it exceptionally suitable for applications with elevated operational temperatures or where interference fits are used, ensuring optimal performance and extended service life.
305/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 305 | Standard bearing series number, defining the core dimensions: 25mm bore, 62mm OD, 17mm width. |
| /C3 | Indicates a greater than normal radial internal clearance. This is critical for applications involving thermal expansion, high speeds, or heavy loads, preventing premature failure due to excessive preload. |
| Open (Implied) | No seals or shields. This allows for higher limiting speeds and facilitates custom lubrication schemes, but requires a clean operating environment. |
305/C3 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The deep groove raceway and robust single row construction are engineered to efficiently support high radial dynamic and static load ratings (5148 lbf / 3507 lbf), providing reliable performance under significant stress.
- High-Speed Capability: The open design and chrome steel cage contribute to a high limiting speed of 13,000 rpm, making it an excellent choice for high-speed applications.
- Thermal and Fit Adaptability: The C3 clearance is a critical performance feature. It accommodates dimensional changes from thermal expansion and interference fits, preventing binding and reducing friction, which is vital for maintaining efficiency and longevity.
- Material Integrity: Constructed entirely from high-grade chrome steel for rings, balls, and cage, ensuring high hardness, wear resistance, and durability across a wide temperature range (-30°C to 120°C).
305/C3 Bearing Typical Application Areas
This versatile ball bearing is ideally suited for a wide range of industrial machinery, including:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Fans and Blowers
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- General machinery requiring robust radial load support with operational flexibility.
