6303NR/C3
6300 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6303NR/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Tolerance class
ABEC 1 | ISO P0
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.008 mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.011 mm to 0
Width
14 mm
Width tolerance
-0.12 mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
3057 lbf
Radial static load rating
1495 lbf
Limiting speed
15 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:
$ 4.75
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6303NR/C3 Bearing Product Overview & Core Advantages
The 6303NR/C3 is a single row deep groove ball bearing engineered for exceptional radial load capacity and reliable performance in demanding applications. Its open design facilitates high-speed operation, while the snap ring groove on the outer ring provides secure axial location and simplifies housing design. Manufactured to ABEC 1 | ISO P0 tolerance standards with a C3 radial internal clearance, this bearing is optimized for applications with thermal expansion or where interference fits are used, ensuring stable operation under varying conditions.
6303NR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6303 | Standard bearing series designation, indicating a metric deep groove ball bearing with a 17mm bore, 47mm OD, and 14mm width. |
| NR | Outer ring features a snap ring groove. This allows for secure axial positioning within a housing, reducing assembly complexity and cost. |
| C3 | Indicates a greater than normal radial internal clearance. This is essential for applications prone to thermal expansion or where tight interference fits are used, preventing premature failure due to excessive preload. |
6303NR/C3 Bearing Structural Features & Performance Benefits
- High Radial Load Capacity: The deep groove raceway and single-row design are optimized to support significant radial loads, with a dynamic load rating of 3057 lbf.
- Simplified Assembly & Axial Location: The integrated snap ring groove eliminates the need for complex housing shoulders or separate components, providing a cost-effective and reliable method for axial retention.
- Optimized for Thermal & Fit Conditions: The C3 clearance ensures operational reliability in environments with temperature fluctuations or when press-fits are applied, maintaining smooth rotation and extending bearing service life.
- High-Speed Capability: The open seal type and precision construction minimize friction, allowing for a limiting speed of 15,000 rpm, making it suitable for various high-speed applications.
- Robust Material Construction: Components made from chrome steel provide high hardness, wear resistance, and durability under demanding operating conditions.
6303NR/C3 Bearing Typical Application Areas
This versatile bearing is commonly specified in:
- Electric Motors and Small Gearboxes
- Pumps and Compressors
- Material Handling Equipment (e.g., conveyor rollers)
- Agricultural Machinery
- Industrial Fans and Blowers
