6203 NR
6200 Series Snap Ring Bearings
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Part No.
Part No.
6203 NR
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.065 kg
Tolerance class
P0
Seal type
Open
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
-0.12mm 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
2237 lbf
Radial static load rating
1068 lbf
Limiting speed
24 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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6203 NR Bearing Product Overview & Core Advantages
The 6203 NR is a single row deep groove ball bearing designed for exceptional radial load capacity and reliable performance in demanding applications. Its key distinguishing feature is the snap ring (fitted) on the outer ring, which provides secure axial location within a housing, simplifying design and assembly. Manufactured from high-grade chrome steel with a stainless steel cage, this bearing offers robust durability and consistent operation. Its open design allows for versatile lubrication options, making it a versatile and cost-effective solution for a wide range of industrial machinery.
6203 NR Bearing Model Code Explained, Specifications & Naming Convention
The model number 6203 NR is decoded as follows:
- 6203: Standard designation for a single row deep groove ball bearing with a 17mm bore, 40mm OD, and 12mm width.
- N: Signifies a snap ring groove machined into the outer ring.
- R: Indicates that the snap ring is supplied fitted to the bearing, ready for immediate installation.
6203 NR Bearing Structural Features & Performance Benefits
- Secure Axial Location: The integrated snap ring (NR designation) prevents creep and simplifies housing design by eliminating the need for complex shoulders or end caps, ensuring precise bearing positioning.
- High Radial Load Capacity: The optimized deep groove raceway and robust construction enable it to handle significant radial dynamic loads (up to 2237 lbf) efficiently.
- Optimized for Speed: The lightweight stainless steel cage guides the balls effectively, contributing to a high limiting speed of 24,000 rpm, suitable for high-speed applications.
- Versatile Application Range: The open seal type allows for custom lubrication regimes, while the standard CN radial internal clearance and P0 tolerance class ensure reliable performance in most general industrial conditions.
6203 NR Bearing Typical Application Areas
This bearing is ideally suited for applications requiring secure location and high-speed operation, including:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Conveyor Systems
- Agricultural Machinery
- Pumps and Compressors
