6203-ZNR/C3
6200 Series Snap Ring Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
6203-ZNR/C3
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
65 g
Tolerance class
ABEC 1 | ISO P0
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
40 mm
Outside diameter tolerance
-0.011mm to 0
Width
12 mm
Width tolerance
-0.120mm to 0
Outer Ring Dimensions
Outer ring locating feature
Snap Ring (fitted)
Outside diameter of snap ring
44.6 mm
Width of snap ring
1.12 mm
Performance
Temperature range
-30°to 120 °C
Radial dynamic load rating
2147 lbf
Radial static load rating
1079 lbf
Limiting speed
17 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:
$ 2.74
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6203-ZNR/C3 Bearing Product Overview & Core Advantages
The 6203-ZNR/C3 is a single row deep groove ball bearing designed for robust performance in demanding applications. This shielded bearing features a snap ring on its outer ring, enabling secure axial location within a housing without requiring complex machining. Its defining characteristic is the C3 radial internal clearance, which makes it particularly suitable for applications with thermal expansion or where interference fits are used. This combination of features delivers a compact, reliable, and easily mounted solution for handling significant radial loads.
6203-ZNR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| Z | Shielded on one side | Protects against contamination from solid particles while allowing for higher speeds compared to contact seals. |
| NR | Snap Ring (fitted) | Simplifies housing design and assembly by providing a positive axial location, reducing the need for complex housing shoulders. |
| C3 | Greater than normal radial internal clearance | Accommodates thermal expansion in the shaft or housing, preventing preload and potential bearing seizure under operating conditions. |
6203-ZNR/C3 Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: Manufactured from chrome steel for both rings, balls, and cage, this bearing ensures high strength and durability. With a dynamic load rating of 2147 lbf and a static load rating of 1079 lbf, it is engineered to handle substantial radial loads in various industrial environments.
- Simplified Housing Design: The integrated snap ring is a key structural feature that allows for a simpler, more cost-effective housing design. It securely locates the bearing, eliminating the need for complex machining of housing shoulders and locknuts.
- Optimized Internal Clearance: The C3 clearance is a critical performance feature. It provides extra space between the rolling elements and raceways to prevent binding caused by thermal expansion from high-speed operation or interference fits, ensuring smooth operation and extended service life.
- Contamination Protection: The non-contact Z-shield effectively retains the factory-applied grease and protects the bearing interior from larger contaminants like dust and debris, enhancing reliability.
6203-ZNR/C3 Bearing Typical Application Areas
- Electric Motors: Commonly used in small to medium-sized motors where secure axial location and protection from contamination are required.
- Gearboxes and Transmissions: Ideal for locating bearings within gearbox housings, benefiting from the snap ring's secure mounting.
- Industrial Fans and Blowers: Suitable for applications with moderate speeds and radial loads, where the C3 clearance accommodates thermal changes.
- Agricultural Machinery: Used in various driveline and implement applications due to its robust construction and simplified mounting.
- Material Handling Equipment: Found in conveyor pulleys and rollers where reliable performance under radial load is essential.
